JP2002261510A - Microwave-frequency adjusting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate the microwave-band frequency adjustment of the local transmission-frequency signal of a high-frequency. SOLUTION: The microwave-frequency adjusting system has a pulse power supply 19, applying a pulse signal to the high-frequency part 7 placed on an adjustment base 30 and an amplifier 15 with a frequency demultiplier measuring oscillation frequency oscillating, in response to the applied pulse signal and a frequency counter 16, and has an adjusting unit capable of rotating an adjusting screw for the high-frequency part 7 by the designated number of revolution through its engagement with the adjustment screw. A motor driver 23 outputs a motor driving signal corresponding to the number of revolution of adjustment, on the basis of a motor driving signal from a control body 21 automatically computing the number of revolution of the adjustment of the adjustment screw, corresponding to difference frequency from the difference frequency of measured oscillation frequency and predetermined specified frequency, the adjustment unit is driven, the adjusting screw for the high-frequency part 7 is turned by the number of revolution of adjustment, and the oscillation frequency of the part is adjusted automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic microwave frequency adjusting system for adjusting the frequency of a high frequency component such as a microwave resonator or a microwave waveguide filter used in a microwave high frequency band.

[0002]

2. Description of the Related Art Conventionally, in high frequency components such as a microwave oscillator and a microwave waveguide filter used in a microwave high frequency band such as satellite broadcasting and satellite communication, in order to adjust the frequency of the high frequency components, Generally, an adjusting screw is provided. For example, a dielectric resonator constituting a microwave oscillator has a structure as shown in FIG. 10, in which an adjusting screw 44 is provided on a ceiling portion of a metal cap 45, and the adjusting screw 44 is rotated. Moving the dielectric resonator 4 up and down
7 can be adjusted.

In FIG. 10, a dielectric resonator 47 is bonded to a circuit board 43 by an adhesive 48 via a support 42 made of a dielectric material. A microstrip line is formed on the circuit board 43, and various active elements 41 and passive elements are mounted on the surface thereof.

In order to prevent various components constituting the microwave oscillator, such as the dielectric resonator 47, the oscillation active element 41, and other passive elements, from being air-coupled to other external circuit parts, these various parts are covered. The metal cap 45 is fixed on the circuit board 43 so that the dielectric resonator 47 is sealed inside the metal cap 45. A screw hole is screwed into a ceiling portion of the metal cap 45 above the dielectric resonator 47, and an adjusting screw 44 that allows the position of the lower surface to move up and down is screwed into the screw hole. ing. By rotating the adjusting screw to change the gap L between the lower surface of the adjusting screw 44 and the dielectric resonator 47, the impedance of the dielectric resonator 47 is changed and the resonance frequency of the dielectric resonator 47 is changed. (That is,
The local oscillation frequency is changed and adjusted.

Here, when adjusting the microwave frequency of a high-frequency component such as the resonance frequency of such a dielectric resonator, conventionally, it is almost always performed manually. For example, as shown in FIGS. 11 and 12, when the high-frequency component 7 (for example, a microwave oscillator including the dielectric resonator 47 in FIG. 10) is mounted on the adjustment table 30 ', 7, the adjustment screwdriver 8 is manually positioned with respect to the adjustment screw 4 (corresponding to the adjustment screw 44 in FIG. 10) provided on the metal cap, and the adjustment screw 4 and the adjustment screwdriver 8 are aligned. After the engagement, by manually rotating the adjustment driver 8 in one of the rotation directions 9, the adjustment screw 4
Is rotated vertically to change the impedance inside the high frequency component.

[0006] On the other hand, using a frequency measurement system shown in FIG.
7, a pulse signal is applied to the high-frequency component 7, and a local oscillation frequency output from the high-frequency component 7 is transmitted to the spectrum analyzer 24 via the rectangular waveguide 14. The coordinator visually observes the local oscillation frequency. Thus, the adjuster manually adjusts the adjustment driver 8 by manually rotating the adjustment driver 8 while observing the oscillation state of the local oscillation frequency observed by the frequency measuring device so as to obtain a desired oscillation frequency.

[0007]

However, in the conventional frequency adjusting method, since the high frequency of the microwave band is adjusted manually, the adjuster requires skill and work for ensuring the adjustment accuracy. Not only does the burden increase, but also it is difficult to keep the adjustment work time within a certain time. Also, when measuring the frequency, when the local frequency signal oscillated by the high-frequency component is directly pulled into the spectrum analyzer for measurement, the measurement time is limited to 100 ms due to the sweep time and frequency measurement span of the spectrum analyzer itself. The measurement time cannot be shortened, and only visual confirmation is possible.

In order to measure the frequency more quickly and accurately, it is necessary to use a frequency counter instead of the spectrum analyzer as a frequency measuring device to measure a local oscillation frequency from a high frequency component. However, the signal level of the local oscillation frequency of the high-frequency component is too low (usually, the signal level is higher than the pickup sensitivity of the existing frequency counter (usually sensitive to a signal level of about -33 dbm or more). Is -55 db
m to -70 dbm), it was difficult to directly count such a local oscillation frequency signal by a frequency counter.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and enables a local oscillation frequency from a high-frequency component to be accurately measured by using a frequency counter. Based on the local oscillation frequency of the high frequency component to a desired frequency,
It is intended to enable automatic adjustment, reduce the work load on the coordinator, and shorten the work time.

[0010]

An automatic microwave frequency adjusting system according to the present invention enables automatic adjustment of a microwave band frequency which is a local oscillation frequency signal of a high frequency component. In addition, it is possible to perform a reliable frequency adjustment operation while ensuring frequency accuracy, and at the same time, reduce the work load on the adjuster and shorten the adjustment operation time. About specific technical means of the microwave frequency automatic adjustment system according to the present invention,
This will be described below.

A first technical means is a microwave frequency adjusting system for adjusting an oscillation frequency of a high frequency signal in a high frequency component capable of oscillating a microwave band high frequency signal, provided on an adjustment table. Pulse signal applying means for applying a pulse signal to the high-frequency component placed on the work table, and frequency measuring means for measuring an oscillation frequency at which the high-frequency component oscillates according to the applied pulse signal And, meshing with an adjusting screw for frequency adjustment provided in the high-frequency component,
An adjusting unit for adjusting the frequency capable of rotating the adjusting screw by the designated number of rotations, wherein the difference between the measured oscillation frequency and a predetermined specified frequency is calculated from the difference frequency. By automatically calculating the adjustment rotation speed of the adjustment screw corresponding to the frequency, based on a drive signal corresponding to the adjustment rotation speed, by driving the adjustment unit, the adjustment screw of the high-frequency component, The microwave frequency adjusting system is characterized in that the oscillation frequency of the high-frequency component can be automatically adjusted by rotating by the adjustment rotational speed.

A second technical means is the microwave frequency adjusting system according to the first technical means, wherein the adjusting unit is capable of rotating by a rotational speed corresponding to the adjusted rotational speed; A micro-driver comprising: an adjustment driver bit capable of rotating by being engaged with the adjustment screw of a high-frequency component; and a coupling for connecting the adjustment driver bit to the stepping motor. It is a wave frequency adjustment system.

A third technical means is the microwave frequency adjusting system according to the second technical means, wherein the microwave driver has a funnel-shaped through hole having an inclined surface that opens upward, and a tip of the adjusting driver bit. The tip portion of the adjustment driver bit is adjusted by moving the portion along the inclined surface and loosely inserting and penetrating the cylindrical through hole forming the lower part of the funnel-shaped through hole. A microwave frequency adjustment system, wherein an adjustment driver bit guide means for securely guiding the screw head is mounted on the high-frequency component.

A fourth technical means is the microwave frequency adjusting system according to the third technical means, wherein the adjusting driver bit guide means surrounds a head of the adjusting screw of the high frequency component so as to surround a head of the adjusting screw. The microwave frequency adjusting system is characterized in that the adjusting driver bit is positioned by fitting an engaging guide having a shaped through hole into the adjusting screw and fixing the adjusting screw.

A fifth technical means is the microwave frequency adjusting system according to the third technical means, wherein the adjusting screwdriver guides the center position of the adjusting screw of the high frequency component vertically upward. A positioning guide consisting of an inverted L-shaped arm which can be arranged so as to extend on the extended line and at which the center of the funnel-shaped through hole is located above the high-frequency component, is provided. By fixing it to the outer side surface of the frequency component,
A microwave frequency adjustment system, wherein the adjustment driver bit is positioned.

According to a sixth technical means, in the microwave frequency adjusting system according to the second technical means, a cylindrical funnel having a reverse funnel-shaped through-hole having an inclined surface opened downward. A driver mounting positioning guide is mounted so as to surround the outer periphery of the adjustment driver bit, and when the head of the adjustment screw is in contact with the inverted funnel-shaped inclined surface,
By moving the tip of the adjusting driver bit along the inclined surface and loosely inserting the adjusting screw into a cylindrical through-hole forming an upper part of the inverted funnel-shaped through-hole, A microwave frequency adjustment system comprising an adjustment driver bit guide means for positioning a tip of the adjustment driver bit.

According to a seventh technical means, in the microwave frequency adjusting system according to any one of the first to sixth technical means, a state of engagement between the adjusting unit and the adjusting screw of the high frequency component is detected. Equipped with a sensor that can
A microwave frequency adjustment system characterized by determining whether to start frequency adjustment of the high-frequency component based on an output signal of the sensor.

According to an eighth technical means, in the microwave frequency adjusting system according to any one of the first to the sixth technical means, the adjusting unit is controlled based on a drive signal corresponding to a predetermined rotation speed. When driven, based on whether the oscillation frequency at which the high-frequency component oscillates has changed, based on whether or not the adjusting unit and the adjusting screw of the high-frequency component have engaged with each other, the high-frequency component is checked for engagement. A microwave frequency adjustment system for determining whether to start frequency adjustment of a component.

According to a ninth technical means, in the microwave frequency adjusting system according to any one of the first to eighth technical means, any one of three directions of an X axis, a Y axis, and a Z axis orthogonal to each other is provided. Providing actuator means capable of moving the adjustment unit, when adjusting the frequency of the high-frequency component having a plurality of frequency adjustment locations, sequentially moving the adjustment unit to the position of the frequency adjustment location. , A microwave frequency adjustment system capable of automatically performing frequency adjustment.

A tenth technical means is the microwave frequency adjusting system according to the ninth technical means, wherein the actuator means is a single-axis robot in each of the horizontal X-axis and Y-axis directions. , And the actuator in the Z-axis direction, which is a vertical direction, is an actuator comprising an air cylinder.

According to an eleventh technical means, in the microwave frequency adjusting system according to any one of the first to tenth technical means, when the frequency adjustment of the high frequency component is completed, the adjustment of the high frequency component is completed. A drive signal for rotating in a direction opposite to the direction of rotation at the time of the frequency adjustment by a minute rotation amount corresponding to a rotation play width in which the screw does not rotate can be automatically output to the adjustment unit. A microwave frequency adjustment system characterized by being able to.

According to a twelfth technical means, in the microwave frequency adjusting system according to any one of the first to eleventh aspects,
When the frequency adjustment of the high-frequency component is completed, when the adjustment unit in a state of being engaged with the adjustment screw of the high-frequency component is detached from the adjustment screw,
It is automatically confirmed that the oscillation frequency at which the high-frequency component oscillates is the same frequency as the frequency at which the frequency adjustment is completed, based on the measurement result of the frequency measurement unit. It is a microwave frequency adjustment system.

According to a thirteenth technical means, in the microwave frequency adjusting system according to any one of the first to twelfth technical means, the work table comprises a rotary table rotatable in a horizontal direction by a rotary drive means. And a plurality of mounting tables for mounting the high-frequency components, wherein each of the mounting tables is a position where the frequency adjustment operation of the high-frequency components is performed, and an adjustment work mounting table and a mounting of the high-frequency components. A microwave frequency adjustment system characterized in that the microwave frequency adjustment system can be rotated to any position on the work preparation mounting table at which the attachment / detachment work is performed.

According to a fourteenth technical means, in the microwave frequency adjusting system according to any one of the first to thirteenth technical means, the frequency measuring means may divide the oscillation frequency of the high-frequency component. A microwave frequency adjusting system, comprising: a frequency divider that can be used; and a frequency counter that counts a frequency divided by the frequency divider.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic microwave frequency adjusting system according to the present invention will be described below with reference to the drawings. First, FIG. 1 shows an example of a configuration of an automatic microwave frequency adjustment system 100 (hereinafter, abbreviated as an automatic adjustment system 100) according to the present invention. Figure 1
In the figure, reference numeral 30 denotes an adjustment table on which the high-frequency component 7 whose microwave frequency is to be adjusted is placed.
In order to automatically adjust the frequency of the high-frequency component 7 placed on the control table 30, the local frequency signal line 14a, the pulse signal supply / current detection line 17a, the drive line 23a, and the control line 26a The high frequency component 7
And are electrically connected.

Here, the pulse signal supply / current detection line 17
a is connected to the high-frequency component 7 by performing F plugging on the high-frequency component 7, and superimposes a pulse signal from the pulse power supply 19 on the high-frequency component 7 via the bias network 17 on the DC voltage. And apply
This is a signal line for detecting the amount of current consumed in the high-frequency component 7 by the ammeter 18 via the bias network 17. The local frequency signal line 14a is connected to the high-frequency component 7 by performing F plugging on the high-frequency component 7, and is connected to the pulse signal supplied via the pulse signal supply / current detection line 17a. Accordingly, the signal line is a signal line that extracts a local frequency signal oscillated by the high-frequency component 7 and guides the signal to the rectangular waveguide 14.

The drive line 23a is connected to the adjustment base 30, and is used to transmit a motor drive pulse signal for rotating the adjustment driver bit forming the tip of the adjustment driver from the motor driver 23. The adjustment driver bit is a signal line, and is engaged with an adjustment screw for frequency adjustment provided in the high-frequency component 7 to rotate the adjustment screw by the designated number of rotations (including the rotation direction). As a result, the impedance of the high-frequency component 7 is changed.

The motor drive pulse signal is based on the result of counting the oscillation frequency of the local frequency signal input through the rectangular waveguide 14 by the frequency divider amplifier 15 and the frequency counter 16. The motor driver 23 generates the motor drive signal by receiving the motor drive signal generated by the control body 21. Further, the control line 26a is connected to the adjustment table 30, and controls the oscillation frequency of the local frequency signal.
This is a signal line for controlling various electric systems and a power supply provided on the adjustment stand 30 based on the results counted by the amplifier 15 with a frequency divider and the frequency counter 16.

Further, as described above, the rectangular waveguide 14
It is a waveguide for transmitting the local frequency signal of the high-frequency component 7 received via the local frequency signal line 14a to the amplifier 15 with a frequency divider. The amplifier 15 with a frequency divider is a local frequency signal (for example, a signal in a microwave frequency band of about 9.5 GHz to 11.5 GHz) received from the rectangular waveguide 14, and has a signal level of-
After amplifying a microwave band signal within a range of about 55 dbm to about -70 dbm to a signal level that can be counted by the frequency counter 16 (for example, about 80 db), amplification is performed so that frequency adjustment can be facilitated. The latter local frequency signal is divided into low frequency components divided into ８ and output to the frequency counter 16.

The frequency counter 16 is a counter that counts each frequency of the local frequency signal divided by て く る that is input from the amplifier 15 with a frequency divider, and oscillates the counted local frequency signal. The numerical value of the frequency is transmitted to the control main unit 21 which controls the whole. By measuring the oscillation frequency of the local frequency signal using the amplifier with frequency divider 15 and the frequency counter 16, the oscillation frequency of the local frequency signal is measured using a conventional spectrum analyzer while maintaining the high frequency band. The measurement accuracy can be improved and the measurement time can be greatly reduced as compared with the case of performing
This can be reduced from about 0 ms to about 1/10, ie, about 10 ms), and the frequency adjustment time can be greatly reduced.

The bias network 17 relays the transmission of the pulse signal in which the DC voltage from the pulse power supply 19 is superimposed on the high-frequency component 7 via the pulse signal supply / current detection line 17a, or This is a network for relaying the current value consumed by the frequency component 7 to the ammeter 18. As described above, the ammeter 18 outputs a high-level signal via the pulse signal supply / current detection line 17a in order to confirm that the pulse signal from the pulse power supply 19 is normally applied to the high-frequency component 7. Frequency components 7
Is used to measure the current value consumed and send the measured current value to the control body 21.

The control main unit 21 receives the instruction from the coordinator, the current consumption value sent from the ammeter 18 and the information on the oscillation frequency of the local frequency signal sent from the frequency counter 16 and the like. This is a control device for controlling the entire automatic adjustment system 100.
Further, the control body 21 has a DISPL for displaying on the display 22 and notifying the adjuster of the adjustment result.
MOTOR for transmitting a motor drive signal for rotating the adjustment driver 8 to the AY unit 21a and the motor driver 23 via the control box 25.
A control signal (for example, a pulse power supply 1) for a circuit unit and a power supply of each electric system unit including the adjustment stand 30 in the automatic adjustment system 100 via the unit 21b and the I / O BOX 26.
Power control signal and output instruction signal of pulse signal for 9)
PIO section (Programmble) for sending
A GPIB unit (General Purpose Int) for receiving data from an Input / Output (21c) 21c, a frequency counter 16 and an ammeter 18.
interface bus) 21d and the like.

The display 22 not only displays the information of the adjustment result, but also displays the automatic adjustment system 100.
Various information on the operation state of the device and information for guiding an instruction input from the coordinator are also displayed to the coordinator. The control box 25 decodes the drive signal from the MOTOR section 21b of the control main body 21 and transmits a rotation motor drive signal of an adjustment driver bit to the motor driver 23, or conversely, via the drive line 23a. And controls the state of the drive rotation motor (stepping motor) of the adjustment driver bit and the state of engagement between the adjustment driver bit and the adjustment screw as a status and sends the status to the MOTOR section 21b of the control main body 21. It is. Based on the motor drive signal from the control box 25, the motor driver 23 sends a drive pulse signal corresponding to a required number of rotations to the drive rotation motor (stepping motor) of the adjustment driver bit via the drive line 23a. Output.

The I / O BOX 26 decodes various control signals received from the PIO section 21c of the control main body 21 and sends the control table 3 via the control line 26a.
0, a high-frequency component 7, a control signal including a power control signal to each electric system of the automatic adjustment system 100, or a pulse power supply via the relay box 20. And transmitting various control signals including a power control signal to the control unit. Here, relay box 2
0 decodes the control signal from the I / O BOX 26,
A control signal for controlling the pulse power supply 19 is generated.

Next, the configuration of the adjustment table 30 will be described with reference to FIGS. Here, FIGS. 2 to 4 show the configuration of the adjustment table in a state where a high-frequency component (high-frequency product) for adjusting the frequency is mounted, and FIG. 2 shows a case where the adjustment table 30 is viewed from the front. FIG. 3 is a front view of FIG.
FIG. 4 is a side view of the adjustment stand 30 when viewed from the side.
FIG. 4 is a plan view when the adjustment table 30 is viewed from directly above. 2 to 4, the same parts are denoted by the same reference numerals.

First, each part will be described with reference to the side view of the adjusting table shown in FIG. 13 is a high frequency component 7
And a stepping motor 1, a coupling 2, and an adjustment driver bit 3. Here, the stepping motor 1
This is a stepping motor for driving the adjustment driver bit 3 to rotate. Based on the motor drive pulse signal supplied from the motor driver 23 shown in FIG. The adjustment driver bit 3 is rotated by the number of rotations. The coupling 2 is a coupling for connecting the upper portion of the adjustment driver bit 3 to the stepping motor 1, and the adjustment driver bit 3 is provided with an adjustment screw 4 (see FIG. (Not shown) is an adjustment driver bit indicating the tip of the adjustment driver for meshing with the adjustment driver bit.

The adjustment unit 13 has an actuator mechanism that can move to an arbitrary position in the X-axis, Y-axis, and Z-axis directions orthogonal to each other. Two single-axis robots 29 that move the adjustment unit 13 in two directions, that is, the horizontal X-axis and the Y-axis, as actuator mechanisms capable of moving in the three-axis direction, and adjustment in the Z-axis direction, which is the vertical direction Air cylinder 28 for moving unit 13 up and down
And are provided.

Reference numeral 10 denotes a work table (rotary table) serving as a work table on which high-frequency components (high-frequency products) are mounted for performing frequency adjustment work. Two mounting tables 5 and 6 capable of mounting components at the same time are provided. One mounting table 5 is an adjustment work mounting table that is in a position where a frequency adjustment operation is performed (that is, an adjustment place for high-frequency components), and the other mounting table 6 is a preparation for performing the next frequency adjustment operation. This is a work preparation mounting table in a state of a stage location (that is, a place where a high-frequency component is attached / detached). The work table 10 is mounted on a support 30a. The work table 10 is horizontally moved by a drive motor (not shown) or an air cylinder 27 on the support 30a.
The rotation stop position of the adjustment work mounting table 5 is set immediately below the adjustment driver bit 3 so that the adjustment screw 4 of the high-frequency component 7 is
Is adjusted so that it can be rotated and stopped.

The fixed position of the other work preparation mounting table 6 is arranged at a position that is rotationally symmetric with respect to the adjustment work mounting table 5 about the center axis 27a.
Accordingly, when the work table 10 is driven to rotate, the work preparation mounting table 6 is rotated by 180 ° and rotated to the position of the adjustment work mounting table 5 for performing the adjustment work. The number of such mounting tables is not necessarily limited to two, and at least one mounting table is provided as a work preparation stage in addition to the mounting table for adjustment work. However, in the present embodiment, two units are shown in order to simplify the description.

Therefore, the adjuster first places the high-frequency component 7 to be adjusted on the work preparation mounting table 6, and sets the adjustment work mounting table 5 using the air cylinder 27.
Can be rotated 180 ° to adjust the frequency, and the high-frequency component 7 to be adjusted next can be mounted on the work preparation mounting table 6. Further, when the frequency adjustment of the high-frequency component 7 is completed, the high-frequency component 7 to be adjusted next is rotated by 180 ° by the air cylinder 27 and then rotated to the position of the adjustment work mounting table 5 and stopped. ,
On the other hand, the adjusted high-frequency component 7 is
The rotation of the high-frequency component 7 is stopped until the high-frequency component 7 is removed, and the high-frequency component 7 to be adjusted next is placed thereon.
This can be performed during the frequency adjustment work, and the frequency adjustment work can be speeded up.

Reference numerals 11 and 11 'denote start switches for starting the automatic adjustment system 100, and two start switches are provided. That is, one start switch 11 is an initial start switch for setting the entire automatic adjustment system 100 to an initial state, and the other start switch 11 ′ is a rotation start switch for rotating the work table 10. is there.

Next, portions not described in the side view of FIG. 3 will be described with reference to the front view of the adjustment table shown in FIG. As described above, in FIG.
The same parts as those in FIG. 3 are denoted by the same reference numerals.
However, compared to the case shown in FIG.
Is lowered, and just the adjustment driver bit 3
3 shows a state immediately before engaging with the adjusting screw 4 (not shown) of the high-frequency component 7. In FIG. 2, the start switches 11 and 11 'are fixedly mounted on the right and left sides of the support 30a, respectively.

Reference numeral 12 denotes an F plug connection unit, which is a connector for connecting the pulse signal supply / current detection line 17a and the local frequency signal line 14a to the high frequency component 7. When the high-frequency component 7 mounted on the work preparation mounting table 6 is rotated to the position of the adjustment work mounting table 5, the F plug unit 12 is automatically connected to the high-frequency component 7. Thus, the high frequency component 7 is electrically connected to the pulse signal supply / current detection line 17a and the local frequency signal line 14a.

As shown in the plan view of the adjusting table 30 in FIG. 4, the working table 10 has a disk-like shape, and can be moved clockwise or counterclockwise by the air cylinder 27. It is rotatable, but the work table 10
As described above, the rotation stop position of the adjustment work mounting table 5
Is adjusted so that the position of (1) is correctly rotated to the position of the adjustment driver bit 3 and stopped.

Next, an adjustment driver bit guide mechanism for correctly guiding the adjustment driver bit 3 to the adjustment screw 4 of the high frequency component 7 will be described with reference to FIGS. Here, FIG. 5 is a conceptual diagram showing a case where a guide mechanism for the adjustment driver bit 3 is provided on the adjustment screw 4 side of the high frequency component 7, and FIG.
FIG. 7 is a conceptual diagram showing a case in which a guide mechanism for the adjustment driver bit 3 is attached to the outer side surface of the device, and FIG. 7 shows a case in which the adjustment driver bit 3 is provided with a guide mechanism for the adjustment driver bit 3 It is a conceptual diagram. FIGS. 5 to 7 respectively show the mounting state of the guide mechanism of the adjustment driver bit 3 using the side view of the adjustment table 30 shown in FIG.

First, a case where the fitting guide 31 is mounted as an adjustment driver bit guide mechanism on the adjustment screw 4 side of the high frequency component (ie, high frequency product) 7 will be described with reference to FIG. Here, the fitting guide 31 has a mechanism for accurately guiding the adjustment driver bit 3 to the position of the adjustment screw 4 of the high-frequency component 7 as described above. As shown in FIG. 5, the fitting guide 31 has a cylindrical outer shape with a hollow inside, and the metal cap 3 of the high-frequency component 7.
The screw 5 is screwed into a screw hole provided on the ceiling surface, and fitted into the head of the adjusting screw 4 projecting above the metal cap 35 to be fixed.

The upper part of the fitting guide 31 is
In order to easily guide the adjustment driver bit 3 to the adjustment screw 4 using the fitting guide 31 as a guide, an inverted conical shape having a predetermined inclination angle (for example, 60 ° to 9 °).
An inverted cone having an apex angle within a range of 0 ° is formed into a hollow 31a, and the apex side, which is the lower side thereof, is fitted into the head of the adjusting screw 4 for mounting. The cavity 31b is formed in a cylindrical shape so as to form a funnel-shaped cavity (that is, a Y-shaped cross section).

When the adjustment driver bit 3 descends and comes close to the adjustment screw 4 of the high-frequency component 7 mounted on the adjustment work mounting table 5, for example, the adjustment driver bit 3 is directly below the adjustment driver bit 3. Even if the adjustment screw 4 is not located at a position such that the adjustment driver bit 3 cannot be accurately engaged with the adjustment screw 4, the adjustment driver 4 can be adjusted along the inclined surface of the fitting guide 31. The bit 3 is guided in the direction of the adjustment screw 4, and can be accurately engaged with the adjustment screw 4, so that the adjustment screw 4 can be turned in accordance with the rotation of the adjustment driver bit 3. .

Next, as shown in FIG.
A case in which a guide mechanism for the adjustment driver bit 3 is attached to the outer side surface of the device will be described. The example shown in FIG. 6 is used when the guide mechanism of the adjustment driver bit 3 cannot be mounted on the adjustment screw 4 side of the high-frequency component 7 which is a product to be adjusted, as in the example shown in FIG. Things.

As shown in FIG. 6, a positioning guide 32 having an inverted L-shape having two arms is provided on the outer side surface of the high-frequency component 7. In this state, the other arm 32 '(that is, the arm in the horizontal state) is not the arm attached to and fixed to the high frequency component 7 of the positioning guide 32. 7.

Further, the arm 32 'extending on the high-frequency component 7 has a center position of the adjusting screw 4 of the high-frequency component 7 at a position intersecting a vertical line extending vertically right above. A through hole is formed such that the center of the guide hole for guiding the adjustment driver hit 3 is located. As for the shape of the through hole, an inverted conical cavity 32a and a cylindrical cavity 32b forming a funnel-shaped (ie, Y-shaped cross-section) cavity shape similar to that shown in FIG. 5 were synthesized. Things. The inclination angle of the inverted conical cavity 32a is also a predetermined angle (for example, 6 degrees) as in the case of FIG.
(An angle having an apex angle in the range of 0 ° to 90 °).

When the adjustment driver bit 3 descends and comes close to the adjustment screw 4 of the high-frequency component 7 mounted on the adjustment work mounting table 5, first, the arm of the positioning guide 32 is set. The adjustment driver bit 3 is loosely inserted into the guide hole drilled on the upper portion 32a, and even if the adjustment screw 4 is not accurately positioned immediately below the adjustment driver bit 3 Along the inclined surface provided in the guide hole, the adjustment driver bit 3
Is guided in the direction of the adjustment screw 4, and can be accurately engaged with the adjustment screw 4, and the adjustment screw 4 can be rotated in accordance with the rotation of the adjustment driver bit 3.

Next, as shown in FIG.
The case where the guide mechanism of the adjustment driver bit 3 is provided on the side will be described. In the example shown in FIG. 7, the guide mechanism of the adjustment driver bit 3 is attached to the high-frequency component 7 which is the product to be adjusted, regardless of the type shown in FIGS. It is used when it is not possible.

As shown in FIG. 7, the adjustment driver bit 3
As a guide mechanism, a cylindrical driver mounting positioning guide 33 having a cylindrical cavity 33c is mounted so as to surround the adjustment driver bit 3. The shape of the cavity at the lower end portion of the driver mounting positioning guide 33 is opposite to the case of FIGS. 5 and 6, and the conical cavity 33a having a downwardly extending inclined surface is formed.
Further, the upper side of the conical cavity 33a has a diameter slightly larger than the outer diameter of the head of the adjusting screw 4 (for example, 0.3 to 1 mm larger than the outer diameter of the head of the adjusting screw 4). Cylindrical cavity 33b having a large diameter in the range of
And has an inverted funnel-shaped (that is, an inverted Y-shaped cross section) cavity shape. Further, the cylindrical cavity 33b is on the upper side and is in contact with the cylindrical cavity 33c which has a diameter smaller than that of the cylindrical cavity 33b and encloses the adjustment driver bit 3 and is fitted therein. . 5 and 6, the inclination angle of the inclined surface of the conical cavity 33a is a predetermined angle (for example, an angle having an apex angle in the range of 60 ° to 90 °). ) Is set to

When the adjustment driver bit 3 descends and comes close to the adjustment screw 4 of the high-frequency component 7 mounted on the adjustment work mounting table 5, the adjustment driver bit 3 is located immediately below the adjustment driver bit 3. Even if the adjustment screw 4 is not positioned and the adjustment driver bit 3 is in a positional relationship such that the adjustment driver bit 3 cannot be accurately engaged with the adjustment screw 4, the driver mounting positioning that is mounted so as to enclose the adjustment driver bit 3. The adjustment driver bit 3 is guided in the direction of the adjustment screw 4 along the inclined surface of the conical cavity 33a at the tip of the guide 33, and the head of the adjustment screw 4 is loosely inserted into the cylindrical cavity 33b. In this state, the adjustment driver bit 3 can be accurately engaged with the adjustment screw 4, and the adjustment screw 4 is turned in accordance with the rotation of the adjustment driver bit 3. A state capable of.

The various guide mechanisms shown in FIGS. 5 to 7 are provided with an adjusting screw 4 of the adjusting driver bit 3 in order to more surely check the engagement state between the adjusting driver bit 3 and the adjusting screw 4. A sensor capable of detecting a contact state with the motor is provided, and a signal detected by the sensor is provided as a status as a drive rotation motor (stepping motor).
The information is transmitted to the control box 25 via the drive line 23a together with the information indicating the operation state of No. 1. It is to be noted that such a sensor is not necessarily provided on the guide mechanism, but is disposed on the adjustment table 30 at an appropriate location where the engagement state between the adjustment driver bit 3 and the adjustment screw 4 can be detected. It may be.

Finally, an outline of the operation of the automatic microwave frequency adjustment system 100 (that is, the automatic adjustment system 100) according to the present invention will be described with reference to FIGS. FIGS. 8 and 9 show the automatic adjustment system 10.
0 is a flowchart showing an example of the operation of FIG.
9 is a flowchart showing the operation of the remaining part following FIG.

First, in FIG. 8, the automatic adjustment system 100 is initialized (step S1). That is,
While monitoring the state of each part using the sensor built in the automatic adjustment system 100, the automatic adjustment system 1
Initially, the mechanical unit and the electrical system unit of 00 are set to constant conditions before the start of adjustment. At this time, the amplifier 1 with a frequency divider for measuring the frequency from the high-frequency component 7 to be adjusted.
5 and the frequency counter 16 are also set to the initial state, and the power supply mode is set to the power supply mode for adjusting the frequency of the high-frequency component 7. Further, the high frequency component 7 to be adjusted is mounted on the work preparation mounting table 6.

Next, two start switches (start SWs) 11 and 11 ′ provided at two positions of the adjustment stand 30.
At the same time (Step S2), the work table (rotary table) 10 rotatably provided on the adjustment table 30 is rotated by 180 ° (Step S2).
3) The mounting table on which the high-frequency component 7 to be adjusted is mounted is moved from the state of the work preparation mounting table 6 to the state of the adjustment work mounting table 5 and set to the start state of the adjustment work. At this time, the high-frequency component 7 to be adjusted placed on the adjustment work
The adjustment terminal is connected to the pulse signal supply / current detection line 1 by the F plug connection unit 12 installed on the adjustment table 30.
7a is electrically connected (step S4). Thus,
A pulse signal on which a DC voltage is superimposed is applied to the high-frequency component 7 via the bias network 17.

Further, the output terminal of the high frequency component 7 to be adjusted is also electrically connected to the local frequency signal line 14a by the F connection unit 12, so that the applied pulse signal is Accordingly, the local frequency signal LO. f (Local O
A scillation frequency is output to the amplifier 15 with a frequency divider via the rectangular waveguide 14.

First, in the amplifier 15 with a frequency divider, the local frequency signal LO. f is read (step S5), and the local frequency signal LO. It is checked whether f is being output (step S6).
Local frequency signal LO. If f is not output (NG in step S6), information to that effect is sent from the frequency counter 16 to the control main body 21, so that it is determined that the high-frequency component 7 is defective. ,
A defect display is output (step S7).

On the other hand, the local frequency signal LO. f is output (OK in step S6), the local frequency signal LO. The frequency f is amplified by about 80 db by the amplifier 15 with a frequency divider, and is then frequency-divided by ８ and input to the frequency counter 16. Further, the control main body 21 having received the oscillation frequency of the local frequency signal counted by the frequency counter 16 sets the predetermined desired frequency (that is, 9.5 GHz to 1).
The difference between the high frequency component 7 and any of the oscillation frequencies within the range of 1.5 GHz is calculated, and it is checked whether the frequency adjustment of the high frequency component 7 is necessary. If it is determined that there is a difference from the desired specified frequency and frequency adjustment is necessary, the MOTOR unit 21
b to the motor driver 23 via the control box 25 to the high-frequency component 7 to be adjusted.
A lowering signal for lowering the adjusting unit 13 including the stepping motor 1, the coupling 2, and the adjusting driver bit 3 is output.

The motor driver 23 which has received the descending signal transmits the air cylinder 28 via the drive line 23a.
Is driven to lower the adjustment unit 13, and the adjustment driver bit 3 in the adjustment unit 13 and the head of the adjustment screw 4 of the high-frequency component 7 are engaged with each other,
The adjustment screw 4 is set in a rotatable state (step S
9). At this time, the guide mechanism of the adjustment driver bit 3 shown in any of FIGS.
1, the positioning guide 32 or the driver mounting positioning guide 33 guides the adjustment driver bit 3 to a position where the adjustment screw 4 is properly engaged with the adjustment screw 4.

Also, the adjustment driver bit 3 and the adjustment screw 4
In order to more reliably check the engagement state with the sensor, a sensor capable of sensing the contact state of the adjustment driver bit 3 with the adjustment screw 4 is provided at an appropriate position on the adjustment base 30 (for example,
A signal sensed by the sensor is transmitted to the control box 25 via the drive line 23a together with the operating state of the drive rotation motor (stepping motor) 1 as a status. The control box 25 causes the control main body 21 to return the status.

On the other hand, the current consumption of the high-frequency component 7 is measured by the ammeter 18 from the pulse signal supply / current detection line 17 a via the bias network 17.
The consumed current value is output to the control main body 21 (step S10). Along with the normality of the status,
It is checked whether the current consumption value is in a normal range, and when it is determined that the current consumption value is not normal (step S
11 NG), the high frequency component 7 is determined to be defective,
A defect display is output (step S12).

On the other hand, when it is determined that the current consumption value is in the normal range together with the status and the state is normal (OK in step S11), the control body 21 determines the oscillation frequency of the local frequency signal. Based on the difference between the control frequency and the desired specified frequency, an adjustment rotation speed (that is, an adjustment rotation angle including the rotation direction) of the adjustment screw 4 for frequency adjustment corresponding to the difference frequency is calculated and obtained (step S
13), a motor drive signal corresponding to the adjusted rotation speed is represented by M
The data is sent from the OTOR unit 21b to the control box 25. Further, the control box 25 reads the state of the stepping motor 1 for driving the adjustment driver bit 3 via the drive line 23a, and confirms that the stepping motor 1 is in a drivable state (step S14), outputting the motor drive signal to the motor driver 23. The motor driver 23 that has received such a motor drive signal drives the drive pulse number (including the rotation direction) corresponding to the adjustment rotation speed (ie, the adjustment rotation angle including the rotation direction) of the adjustment driver bit 3 via the drive line 23a. Is output (step S15).

The stepping motor 1 for driving the adjustment driver bit 3 having received the drive pulse signal rotates by the specified number of drive pulses in the specified rotation direction to rotate the adjustment driver bit 3 (step S16). .
With the rotation of the adjustment driver bit 3, the adjustment screw 4 of the high-frequency component 7 meshed with the adjustment driver bit 3 is also rotated to change the internal impedance of the high-frequency component. Oscillation frequency L
O. f changes.

The local oscillation frequency L whose frequency has been changed
O. f is the frequency of the amplifier 1 with the frequency divider as in the case described above.
It is measured by the 5-pass frequency counter 16 and output to the control body 21 (step S17). In the control body 21, the local oscillation frequency LO. f
And the difference between the desired local frequency and the desired specified frequency are determined (step S).
18). If the desired local oscillation frequency has not been reached (NG in step S18), it is checked whether a predetermined time for the adjustment work has timed out (step S19).
If the timeout has not yet occurred (NO in step S19), the process returns to step S13, and the frequency adjustment work is further continued. On the other hand, if the timeout has occurred (YES in step S19), it is determined that the high-frequency component 7 is defective, and a defect display is output (step S20).

When the frequency is adjusted to the desired local oscillation frequency (OK in step S18), the control body 21 makes it easy for the adjustment driver bit 3 to come off from the adjustment screw 4 at the end of the frequency adjustment work. ,
The frequency is measured by a frequency counter 16 via an amplifier 15 with a frequency divider so that the adjustment screw 4 is slightly rotated in a direction opposite to the rotation direction at the time of frequency adjustment by a minute rotation amount corresponding to a rotation play width in which the adjustment screw 4 does not rotate. Local oscillation frequency L
O. Based on f (step S21), a required number of rotations (a rotation angle including a rotation direction) corresponding to the minute rotation amount is calculated (step S22). The motor drive signal corresponding to the required number of revolutions is sent from the MOTOR unit 21b to the control box 25. Further, the control box 25 reads the state of the stepping motor 1 for driving the adjustment driver bit 3 via the drive line 23a, and confirms that the stepping motor 1 is in a drivable state (step S23), outputting the motor drive signal to the motor driver 23.

The motor driver 23 having received the motor drive signal corresponds to the required number of rotations (that is, the rotation angle including the rotation direction) of the adjustment driver bit 3 via the drive line 23a (including the rotation direction). A drive pulse signal of the number of drive pulses is output (step S24). The stepping motor 1 for driving the adjustment driver bit 3 that has received the drive pulse signal rotates in the specified rotation direction by the specified number of drive pulses, and drives the adjustment driver bit 3 to rotate (step S25). As a result, the adjustment driver bit 3 is rotated by a small angle in the reverse direction, and is easily released from the adjustment screw 4.

On the other hand, the local oscillation frequency LO. Whether or not f fluctuates is measured by the frequency counter 16 via the amplifier 15 with the frequency divider and output to the control main body 21 (step S26). The control main body 21 controls the adjusted local oscillation frequency LO. After confirming that f does not fluctuate, the MOTOR unit 21b sends a signal to the motor driver 23 via the control box 25 from the high frequency component 7 to be adjusted to raise the adjustment unit 13 from the high frequency component 7 to be adjusted. Is output.

The motor driver 23 which has received the rising signal transmits the air cylinder 28 via the drive line 23a.
Is driven to raise the adjustment unit 13, and the adjustment driver bit 3 in the adjustment unit 13 is detached from the head of the adjustment screw 4 of the high-frequency component 7 (step S27). Even during such a rising operation, the adjusted local oscillation frequency LO. Whether or not f fluctuates is measured by the frequency counter 16 via the amplifier 15 with frequency divider and output to the control main body 21. The control main body 21 adjusts the adjusted local oscillation frequency L.
O. Confirm that f does not fluctuate (step S2)
8). Local oscillation frequency LO. If f has fluctuated (NG in step S28), it is confirmed whether or not the adjustment work time has timed out (step S29).
If the timeout has already occurred (Y in step S29)
ES), it is determined that the high-frequency component 7 is defective, and a defect display is output (step S30). On the other hand, if the timeout has not yet occurred (NO in step S29), the process returns to step S8, and the frequency adjustment operation is repeated again.

The local oscillation frequency LO. f does not fluctuate and the adjustment work is correctly completed (step S2
8), the high-frequency component 7 is determined to be non-defective, and a non-defective display is output (step S31). Further, in order to remove the high-frequency component 7 for which the frequency adjustment operation has been completed from the adjustment work mounting table 5, the connection line between the adjustment terminal of the high-frequency component 7 and the F plug connection unit 12 to which the output terminal is connected is connected. Then, the F plug is opened to open the electrical connection with the high frequency component 7 (step S32).
Also, raise the adjustment unit 13 completely to the upper part,
Work table 1 on which adjusted high-frequency components 7 are placed
0 is set in a rotatable state (step S33), and the work table 10 is moved to 18 by pressing the rotation start switch 11 '.
By rotating by 0 °, the position of the adjustment work mounting table 5 on which the adjusted high-frequency component is mounted is rotated to the position of the work preparation mounting table 6, and the adjusted high-frequency component 7 is removed from the work table 10. Remove.

If there is still a high-frequency component 7 to be frequency-adjusted, the work table 1
During the frequency adjustment work before reaching step S33 in which 0 is rotated, the high frequency component 7 to be frequency-adjusted next is placed on the work preparation mounting table 6, so that in step S33 When the work table 10 is rotated by 180 °, the work preparation mounting table 6 on which the high-frequency component 7 to be frequency-adjusted is mounted next rotates to the position of the new adjustment work mounting table 5, so that Then, the operation for adjusting the next high-frequency component 7 can be started. Thus, during the frequency adjustment operation, the operation of mounting the next high-frequency component to be adjusted can be completed (that is, the adjustment operation of the high-frequency component and the attachment / detachment operation can be performed in parallel). When the adjustment of the high-frequency component being adjusted is completed, the work table is rotated, and the process can immediately proceed to the adjustment operation of the high-frequency component to be adjusted next. Work efficiency can be improved.

In the automatic adjustment system according to the present invention, as shown in FIGS. 2 to 4, an adjustment unit 13 including an adjustment driver bit 3 for frequency adjustment is connected to an X unit.
There is an actuator mechanism that can move to any position in any of the three axes of the Y axis, the Y axis, and the Z axis. Can be automatically moved to the position of each adjustment point, and the adjustment unit 13 can be automatically moved to perform the adjustment work. Further, as a means for realizing such an actuator mechanism, a commercially available single-axis robot 29 or air cylinder 28 can be appropriately combined and applied, and can be reliably realized using existing technology.

Further, in the above-described embodiment, the contact state of the adjustment driver bit 3 with the adjustment screw 4 can be sensed in order to more reliably confirm the engagement state between the adjustment driver bit 3 and the adjustment screw 4. Sensors, for example,
Although an example is shown in which the various guide mechanisms (ie, the fitting guide 31, the positioning guide 32, and the driver mounting positioning guide 33 shown in FIGS. 5 to 7) are provided, the invention is limited to the case where such a sensor is used. Instead, as a result of rotating the adjustment driver bit 3 by a predetermined number of rotations, the local oscillation frequency LO. is measured by the amplifier 15 with a frequency divider and the frequency counter 16 to determine whether or not the local oscillation frequency LO. If there is a change in f, it may be determined that the adjustment driver bit 3 is securely engaged with the adjustment screw 4.

[0077]

As described above, in the automatic microwave frequency adjustment system according to the present invention, it is possible to fully automate the frequency adjustment work that requires precise adjustment work, and the burden on the coordinator. Can be greatly reduced, and the adjustment accuracy can be greatly improved. Further, the work time required for the adjustment work can be reduced to about 1/10 as compared with the case of the conventional adjustment work by hand, which helps to reduce the product cost.

Further, there is provided a mechanism for guiding the adjustment driver bit to an adjustment screw for adjusting the frequency of the high-frequency component,
Also, since it has a means for surely confirming the engagement state between the adjustment screw and the adjustment driver bit, even if, for example,
Even if the position of the adjustment driver bit is slightly deviated from the position on the vertical line of the adjustment screw, the adjustment driver bit can be automatically guided to the adjustment screw position, ensuring frequency adjustment work. It is possible to do it.

Further, by using a signal obtained by amplifying a local frequency signal and dividing it as an input signal to a frequency measuring device for counting a local oscillation frequency of a high-frequency component, a frequency counter can be used. Compared to conventional measurement using a frequency analyzer such as a spectrum analyzer while maintaining a high frequency, it is possible to measure the local oscillation frequency accurately and quickly, thereby improving the frequency adjustment accuracy. And the frequency measurement time can be reduced to about 1/10 (100 ms to 1
(To about 0 ms), and it is possible to shorten the frequency adjustment work time.

When the frequency adjustment of the high-frequency component is completed, the rotation of the adjustment screw of the high-frequency component is rotated in a direction opposite to the rotation direction during the frequency adjustment by a minute amount of rotation corresponding to a rotational play that does not rotate. When the adjustment driver bit is rotated in the direction, the adjustment driver bit that has been engaged with the adjustment screw is rotated to a position where it can easily be removed from the adjustment screw, and when the adjustment driver bit is removed from the adjustment screw. In addition, it is possible to prevent the adjustment screw from being erroneously rotated and prevent the adjusted oscillation frequency from being erroneously shifted.

The work table on which the high-frequency components to be frequency-adjusted are mounted is a rotatable rotary table, and an adjustment work mounting table that is in an adjustment operation state, and a work that is a standby state to be adjusted next. Since a plurality of mounting tables with the preparatory mounting table are provided, during the frequency adjustment operation, the operation of mounting the next high-frequency component to be adjusted is completed (that is, the adjustment operation of the high-frequency component and the mounting operation). The work table can be rotated immediately after the adjustment of the high-frequency components being adjusted is completed.
The operation can be shifted to the adjustment operation of the high-frequency component to be adjusted next, and the operation efficiency can be improved without wasting unnecessary operation time.

Further, even in the case of a high-frequency component requiring a plurality of frequency adjustment points, an actuator capable of moving an adjustment unit used for frequency adjustment to an arbitrary position on three axes is provided by a commercially available air cylinder or a single unit. Since the axis robot is configured in combination, a single adjustment unit sequentially performs frequency adjustment work at a plurality of locations, thereby making it possible to construct an inexpensive automatic adjustment system and contributing to a reduction in product cost. It is possible.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an example of a configuration of an automatic microwave frequency adjustment system according to the present invention.

FIG. 2 is a front view of the adjustment table of the automatic microwave frequency adjustment system according to the present invention when viewed from the front.

FIG. 3 is a side view of the adjustment base of the automatic microwave frequency adjustment system according to the present invention when viewed from the side.

FIG. 4 is a plan view of the adjustment table of the automatic microwave frequency adjustment system according to the present invention when viewed from directly above.

FIG. 5 is a conceptual diagram showing a case where a guide mechanism for an adjustment driver bit is provided on an adjustment screw side of a high-frequency component.

FIG. 6 is a conceptual diagram showing a case where a guide mechanism for an adjustment driver bit is attached to an outer side surface of a high-frequency component.

FIG. 7 is a conceptual diagram showing a case where an adjustment driver bit guide mechanism is provided on the adjustment driver bit side.

FIG. 8 is a flowchart showing an example of the operation of the automatic microwave frequency adjustment system according to the present invention.

FIG. 9 is a flowchart showing the operation of the remaining part of the automatic microwave frequency adjustment system according to the present invention subsequent to FIG. 8;

FIG. 10 is a structural diagram showing a structure of a dielectric resonator as an example of a conventional high-frequency component.

FIG. 11 is a diagram for explaining a conventional method for adjusting a high-frequency component.

FIG. 12 is a configuration diagram for explaining a conventional frequency measurement system for high-frequency components.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Stepping motor, 2 ... Coupling member, 3 ...
Adjustment screwdriver bit, 4 ... Adjustment screw, 5 ... Adjustment work mounting table, 6 ... Work preparation mounting table, 7 ... High frequency parts (high frequency product), 8 ... Adjustment driver, 9 ... Rotation direction, 10 ... Work table (rotation) Table), 11 ... initial start switch,
11 ': rotation start switch, 12: F plug unit, 1
3 Adjustment unit, 14 Square waveguide, 14a Local frequency signal line, 15 Amplifier with frequency divider, 16 Frequency counter, 17 Bias network, 17a Pulse signal supply / current detection line, 18 Ammeter, 19: pulse power supply, 20: relay box, 21: control body, 21a: DISPLAY part, 21b: MOTOR
Unit, 21c PIO unit, 21d GPIB unit, 22 display, 23 motor driver, 23a drive line, 24 spectrum analyzer, 25 control box, 26 I / O BOX, 26a control line, 27 ... Air cylinder, 27a Central axis, 28 ...
Air cylinder, 29: single-axis robot, 30, 30 ': adjustment table, 30a: support table, 31: fitting guide, 31
a, 31b: hollow, 32: positioning guide, 32 ': arm, 33: driver mounting positioning guide, 33a, 33
b, 33c: cavity, 35: metal cap, 41: active element, 42: support, 43: circuit board, 44: adjusting screw, 45: metal cap, 46: housing, 47: dielectric resonator, 48: adhesion 100, a microwave frequency automatic adjustment system.

Claims (14)

[Claims] 1. A microwave frequency adjusting system for adjusting an oscillation frequency of a high frequency signal in a high frequency component capable of oscillating a microwave band high frequency signal, the microwave frequency adjusting system being mounted on a work table provided on an adjustment table. Pulse signal applying means for applying a pulse signal to the high-frequency component, frequency measuring means for measuring an oscillation frequency at which the high-frequency component oscillates in response to the applied pulse signal, A frequency adjustment unit capable of rotating the adjustment screw by a specified number of rotations by meshing with a frequency adjustment screw provided on the part, and From the difference frequency between the oscillating frequency and the predetermined specified frequency, the adjustment rotation speed of the adjustment screw corresponding to the difference frequency is automatically calculated, and Based on the drive signal according to the number of turns,
By driving the adjustment unit, the adjustment screw of the high-frequency component can be rotated by the adjustment rotation speed to automatically adjust the oscillation frequency of the high-frequency component. Microwave frequency adjustment system. 2. The microwave frequency adjusting system according to claim 1, wherein the adjusting unit is capable of rotating by a rotational speed corresponding to the adjusted rotational speed, and the adjusting screw of the high frequency component. A microwave frequency adjustment system, comprising: an adjustment driver bit capable of performing a rotating operation by being engaged with a motor; and a coupling connecting the adjustment driver bit and the stepping motor. 3. The microwave frequency adjusting system according to claim 2, further comprising a funnel-shaped through hole having an inclined surface that opens upward, wherein a tip end of the adjustment driver bit extends along the inclined surface. To allow the tip of the adjustment driver bit to be securely inserted into the head of the adjustment screw by loosely inserting and passing through the cylindrical through-hole forming the lower part of the funnel-shaped through-hole. A microwave frequency adjustment system, wherein an adjustment driver bit guide means for guiding can be mounted on the high frequency component. 4. The microwave frequency adjusting system according to claim 3, wherein said adjusting driver bit guide means includes said funnel-shaped through hole so as to surround a head of said adjusting screw of said high frequency component. A microwave frequency adjustment system, wherein the adjustment driver bit is positioned by fitting a guide into the adjustment screw and fixing the guide. 5. The microwave frequency adjustment system according to claim 3, wherein the adjustment driver bit guide means is provided on an extension of a center position of the adjustment screw of the high-frequency component extending vertically upward. A positioning guide consisting of an inverted L-shaped arm which can be disposed by extending the arm at which the center of the funnel-shaped through hole is located above the high frequency component is provided on the outer side surface of the high frequency component. A microwave frequency adjustment system, wherein the adjustment driver bit is positioned by being fixed. 6. The microwave frequency adjusting system according to claim 2, wherein the cylindrical driver mounting positioning guide having an inverted funnel-shaped through hole having an inclined surface opened downward is provided. When the head of the adjusting screw comes into contact with the inclined surface of the inverted funnel, the tip of the adjusting driver bit is moved along the inclined surface when the adjusting screw is attached so as to surround the outer periphery of the adjusting driver bit. Then, by loosely inserting the adjusting screw into the cylindrical through-hole forming the upper part of the inverted funnel-shaped through-hole, the adjustment driver bit guide means at which the tip of the adjustment driver bit is positioned is provided. A microwave frequency adjustment system, comprising: 7. The microwave frequency adjusting system according to claim 1, further comprising a sensor capable of sensing a state of engagement between said adjusting unit and said adjusting screw of said high-frequency component, wherein A microwave frequency adjustment system for determining whether to start frequency adjustment of the high-frequency component based on an output signal. 8. The microwave frequency adjusting system according to claim 1, wherein when the adjusting unit is driven based on a drive signal corresponding to a predetermined number of revolutions, the high frequency is adjusted. Based on whether or not the oscillation frequency at which the frequency component oscillates has changed, the state of engagement between the adjustment unit and the adjustment screw of the high frequency component is confirmed, and whether or not the frequency adjustment of the high frequency component can be started is determined. A microwave frequency adjustment system characterized by determining. 9. The microwave frequency adjustment system according to claim 1, wherein X orthogonal to each other.
Actuator means for moving the adjustment unit in any of the three directions of the axis, the Y axis, and the Z axis, and when adjusting the frequency of the high frequency component having a plurality of frequency adjustment points, A microwave frequency adjustment system characterized in that a unit is sequentially moved to the position of the frequency adjustment point to enable automatic frequency adjustment. 10. The microwave frequency adjusting system according to claim 9, wherein said actuator means is a horizontal X-axis, Y-axis direction actuator means,
A microwave frequency adjusting system, wherein each of the actuators is a single-axis robot, and the actuator in the Z-axis direction, which is a vertical direction, is an actuator including an air cylinder. 11. The microwave frequency adjustment system according to claim 1, wherein when the frequency adjustment of the high frequency component is completed, the adjustment screw of the high frequency component does not rotate. A microwave frequency characterized by being able to automatically output a drive signal for rotating in a direction opposite to the direction of rotation at the time of the frequency adjustment by a minute rotation amount corresponding to the rotation play width to the adjustment unit. Adjustment system. 12. The microwave frequency adjusting system according to claim 1, wherein when the frequency adjustment of the high-frequency component is completed, the microwave is adjusted to be engaged with the adjustment screw of the high-frequency component. When the adjustment unit is detached from the adjustment screw, the oscillation frequency at which the high-frequency component oscillates is the same frequency as the frequency when the frequency adjustment is completed, and the measurement result of the frequency measurement unit A microwave frequency adjustment system characterized in that confirmation is automatically performed by the system. 13. The microwave frequency adjusting system according to claim 1, wherein said work table comprises a rotary table rotatable in a horizontal direction by a rotary drive means, and mounts said high frequency component. A plurality of mounting tables to be mounted, wherein each of the mounting tables is a position for performing an adjustment work mounting table and a position for performing mounting / removing work of the high-frequency component on the high-frequency component A microwave frequency adjustment system characterized in that it can be rotated to any position with a preparation mounting table. 14. The microwave frequency adjusting system according to claim 1, wherein said frequency measuring means divides an oscillation frequency of said high frequency component, and A microwave frequency adjustment system, comprising: a frequency counter that counts a frequency divided by a frequency divider.