CN106299566B - A kind of manual, program-controlled dual-purpose type step attenuator - Google Patents
A kind of manual, program-controlled dual-purpose type step attenuator Download PDFInfo
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- CN106299566B CN106299566B CN201610670513.2A CN201610670513A CN106299566B CN 106299566 B CN106299566 B CN 106299566B CN 201610670513 A CN201610670513 A CN 201610670513A CN 106299566 B CN106299566 B CN 106299566B
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- sleeve
- shrapnel
- program
- attenuator
- sliding bar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/22—Attenuating devices
- H01P1/23—Attenuating devices using ferromagnetic material
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention provides a kind of manual, program-controlled dual-purpose type step attenuators, including program-controlled mechanism and man-operated mechanism, program-controlled mechanism includes relay and damping assemblies, the center of relay is provided through the iron core of relay, iron core moves up and down in relay, and the lower end of iron core is fixedly connected there are two push rod, and the lower end of push rod is connected with transmission line, damping assemblies include in upper substrate transport and in the next attenuator, and transmission line is between substrate transport and attenuator.Man-operated mechanism includes knob and sleeve, knob sleeve is on the top of sleeve, sleeve is internally provided with sliding bar, and the top of sliding bar is connected with knob, and there are two shrapnels for the middle part dress of sliding bar, it is connected by the first spring between two shrapnels, on sliding bar, two shrapnels laterally extend to outside sleeve first spring pocket, and the upper end of iron core is extended transversely into the space folded by two shrapnels, the lower part of sliding bar is connected with second spring, and the lower end of second spring is connected with sleeve.
Description
Technical field
The present invention relates to attenuator fields, and in particular to a kind of manual, program-controlled dual-purpose type step attenuator.
Background technology
Step attenuator, which is generally divided into, at present is manually stepped two kinds of attenuator and programmable step attenuator.It is manually stepped decaying
Device is by the way of the contact for converting the action of button or knob to transmission reed and various attenuators and disconnecting, by several
The decaying of signal is realized in the combination of attenuator.The not powered work of such attenuator, it is easy to carry, it is largely used to field adjustable, but
It cannot be used in automated test device.
Programmable step attenuator is divided into electromechanical type programme control step attenuator and electric-controlled type step attenuator, in signal source, arrow
It is widely used in the automated test devices such as amount Network Analyzer.Electromechanical type programme control step attenuator is controlled each by control circuit
Relay corresponding to attenuator converts the break-make of relay to the contact and disconnection of transmission reed and various attenuators, leads to
The combination for crossing several attenuator pad values realizes that the stepping decaying of signal, the attenuation accuracy of such attenuator are high, repeatable
It is good, and the adjustable extent that decays is big.Electric-controlled type attenuator controls attenuation using triode, and it is small that this kind of attenuator can bear power,
And attenuation accuracy is apparent as the raising of frequency declines, attenuation accuracy is not high in broad frequency range.The program-controlled stepping of both the above declines
Subtract device, must power up when in use, can not work in the case where disconnecting power supply, therefore be only used for automated test device
In.
Application No. is 201410330671.4《A kind of radio frequency mechanical switch and microwave program-control step attenuator》It is and this
A kind of most similar scheme of invention, the program use the design scheme of electromechanical type programme control step attenuator, pass through electromagnetic relay
Driving microwave transmission movable contact spring switches straight-through between transmission line and attenuator, realizes the various combination of multiple attenuation units, from
And realize that attenuation is program-controlled, stepping decaying.But the attenuator does not have manual control module, can not it is manual with it is program-controlled between it is arbitrary
Switching, can only be powered on, can not work under not electric power thus supplied, limit use scope.
Invention content
For existing attenuator cannot manually and program-controlled the problem of taking into account, the present invention provides one kind manual, program-controlled two
With formula step attenuator.
The present invention uses technical solution below：
A kind of manual, program-controlled dual-purpose type step attenuator, which is characterized in that described including program-controlled mechanism and man-operated mechanism
Program-controlled mechanism includes relay and damping assemblies, and circuit control panel is connected on relay, and the center of relay is provided through
The iron core of relay, iron core move up and down in relay, and the lower end of iron core is fixedly connected there are two push rod, and the lower end of push rod connects
It is connected to transmission line, the damping assemblies include in upper substrate transport and in the next attenuator, the transmission line position
Between substrate transport and attenuator；The man-operated mechanism includes knob and sleeve, knob sleeve on the top of sleeve, sleeve it is interior
Portion is provided with sliding bar, and the top of sliding bar is connected with knob, and the middle part of sliding bar dress is there are two shrapnel, between two shrapnels
It is connected by the first spring, on sliding bar, two shrapnels laterally extend to outside sleeve the first spring pocket, and the upper end of the iron core is horizontal
To extending into the space folded by two shrapnels, the lower part of sliding bar is connected with second spring, the lower end of second spring and sleeve
It is connected.
Preferably, the push rod is separately positioned on the left and right sides of iron core lower end, the lower end of push rod respectively with transmission line
Two ends are connected, and two ends of transmission line are oppositely arranged, and two ends of transmission line are respectively positioned on substrate transport and attenuator
Between.
Preferably, the inside of the knob offers the first cavity of annular, and cylindrical plug is formed among the first cavity
The centre of body, cock body is provided with threaded hole, and first cavity is sleeved on the top of sleeve, and cock body fills in sleeve inner, sleeve
Top offers the second cavity of annular being recessed inwardly, and the second cavity is connected by snap ring with the inner wall of knob, the sliding
The top of bar is threadedly coupled with threaded hole.
Preferably, the sliding bar includes be connected first body of rod and second body of rod, and first body of rod is located at second body of rod
Upper end, the diameter of second body of rod are more than the diameter of first body of rod, and the top of first body of rod is threadedly coupled with threaded hole.
Preferably, the shrapnel include in upper the first shrapnel and in the second the next shrapnel, the first shrapnel and
Second shrapnel is installed on first body of rod, and the upper end of the first shrapnel is in contact with the lower end of the cock body, under the second shrapnel
End is in contact with the upper end of second body of rod, and the upper end of the first spring is connected by Upper gasket with the first shrapnel, the first spring
Lower end be connected with the second shrapnel by lower gasket, the cross sectional shape of the Upper gasket is inverted U-shaped, and the cross sectional shape of lower gasket is
Rectangle.
Preferably, the side of second body of rod is provided with limiting slot, and pin, pin are provided on the side wall of the sleeve
It stretches into limiting slot.
Preferably, symmetrical two chamber holes are offered on the outer wall in the middle part of the sleeve, the shrapnel is stretched from chamber hole
To outside sleeve, shrapnel can move up and down in chamber hole.
Preferably, the lower end of the sliding bar is connected with the microswitch with self-locking function, and microswitch is located at the second bullet
The inside of spring, the lower end of microswitch are connected with the bottom end of sleeve.
The invention has the advantages that：
Manual, program-controlled dual-purpose type step attenuator provided by the invention, can both be powered as electromechanical type programme control stepping and decline
Subtract device use, can also be switched by working condition, not being manually stepped attenuator with power supply connection conduct uses, and has broken program-controlled
Step attenuator and the application being manually stepped when attenuator is used as single product limit.Dual-purpose type stepping provided by the invention
Attenuator had both had many advantages, such as that electromechanical type programme control step attenuator attenuation accuracy height, favorable repeatability, decaying adjustable extent were big,
Have many advantages, such as to be manually stepped and is carried possessed by attenuator, is easy to use.Compared with prior art, the present invention structure novel,
Assembling is simple, and applicability and versatility are good.
Description of the drawings
Fig. 1 is the structural schematic diagram of manual, program-controlled dual-purpose type step attenuator.
Specific implementation mode
The present invention is specifically described below in conjunction with the accompanying drawings：
In conjunction with Fig. 1, a kind of manual, program-controlled dual-purpose type step attenuator, including program-controlled mechanism and man-operated mechanism.
Wherein, program-controlled mechanism includes relay 1 and damping assemblies, and relay 1 keeps function with magnetic, connects on relay 1
It is connected to circuit control panel 2, the center of relay 1 is provided through the iron core 3 of relay, and circuit control panel 2 can control iron core 3
It is moved up and down in relay, the lower end of iron core 3 is fixedly connected with that there are two push rods 4, and the lower end of push rod 4 is connected with transmission line 5.It declines
It includes in upper substrate transport 6 and in the next attenuator 7 to subtract component, and transmission line 5 is located at substrate transport 6 and attenuator
Between 7.
Specifically, push rod 4 is separately fixed at the left and right sides of 3 lower end of iron core, the lower end of push rod 4 respectively with transmission line 5
Two ends are connected, and two ends of transmission line 5 are oppositely arranged, and two ends of transmission line 5 are respectively positioned on substrate transport 6 and decaying
Between piece 7.
Man-operated mechanism includes knob 8 and sleeve 9, and knob 8 is sleeved on the top of sleeve 9, and the 9 of sleeve is internally provided with sliding bar
10, the top of sliding bar 10 is connected with knob 8, and the middle part of sliding bar 10 dress is there are two shrapnel, by the between two shrapnels
One spring 11 connects, and the first spring 11 is sleeved on sliding bar 10, and two shrapnels laterally extend to outside sleeve 9, and the upper end of iron core 3 is lateral
It extend into the space folded by two shrapnels, the lower part of sliding bar is connected with second spring 12, the lower end of second spring and sleeve
It is connected, the lower end of sliding bar is connected with the microswitch 13 with self-locking function, and microswitch is located at the inside of second spring 12, micro-
The lower end of dynamic switch is connected with the bottom end of sleeve.
Specifically, the inside of knob 8 offers the first cavity 81 of annular, cylindrical plug is formed among the first cavity 81
The centre of body 82, cock body is provided with threaded hole 83, and the first cavity 81 is sleeved on the top of sleeve 9, and cock body 82 is filled in inside sleeve 9,
The top of sleeve offers the second cavity of annular 91 being recessed inwardly, and the second cavity is connected by snap ring 14 with the inner wall of knob 8
It connects.
Specifically, sliding bar 10 includes be connected first body of rod 101 and second body of rod 102, first body of rod 101 is located at second
The upper end of the body of rod 102, the diameter of second body of rod are more than the diameter of first body of rod, and top and 83 screw thread of threaded hole of first body of rod connect
It connects.Shrapnel includes in the first upper shrapnel 15 and in the second the next shrapnel 16, the first shrapnel 15 and the second shrapnel 16
It is installed on first body of rod, the upper end of the first spring 11 is connected by Upper gasket 17 with the first shrapnel, the section of Upper gasket 17
Shape is inverted U-shaped, and the lower end of the first spring 11 is connected by lower gasket 18 with the second shrapnel, and the cross sectional shape of lower gasket 18 is length
Rectangular, the upper end of the first shrapnel 15 is in contact with the lower end of cock body 82, the upper end of the lower end of the second shrapnel 16 and second body of rod 102
It is in contact.
Symmetrical two chamber holes 19, the first shrapnel 15 and the second shrapnel 16 are offered on outer wall in the middle part of sleeve from cavity
Hole 19 extends to outside sleeve, and the first shrapnel and the second shrapnel can move up and down in chamber hole.
The side of second body of rod 102 is provided with limiting slot 20, and pin 21 is provided on the side wall of sleeve, and pin 21 stretches into limit
In the slot 20 of position, pin makes sliding bar that can only be slided up and down in sleeve, cannot be rotated in sleeve.
Knob 8 is rotated upwardly to top counterclockwise, after energization, the attenuator be Program Mode, Program Mode it is worked
Journey is substantially：
After circuit control panel 2 sends out the control signal for making iron core 3 move downward, iron core 3 drives push rod 4 and transmission line 5 same
When move downward, when iron core 3 is moved down into the lowest part of its stroke, two ends of transmission line 5 are contacted with attenuator 7, are declined
Subtract piece access transmission channel, signal decaying, at this point, remains stationary under the action of relay magnetic retentivity of iron core 3；When circuit control
After making sheet 2 sends out the control signal for making iron core 3 move upwards, iron core 3 drives push rod 4 and transmission line 5 to move upwards simultaneously, iron core
3 when being moved upwards up to the topmost of its stroke, and two ends of transmission line 5 are contacted with substrate transport 6, and attenuator 7 does not access
Transmission channel, signal is unattenuated, at this point, remains stationary under the action of relay magnetic retentivity of iron core 3.Repeating above procedure is
Can complete the decaying of an attenuation units signal with it is unattenuated.
When disconnecting power supply, which is manual mode, and the course of work of manual mode is substantially：
The first step rotates clockwise knob 8, and knob 8 is moved down relative to sliding bar 10, and second body of rod can push second
Shrapnel 16 and lower gasket 18 compress the first spring 11, Distance Shortened between Upper gasket 17 and lower gasket 18, until Upper gasket upwards
It being in contact with lower gasket, the first spring 11 is complete by compression, in the process, and since the elastic force of second spring 12 acts on, first
Shrapnel 15 and Upper gasket 17 do not move, and sliding bar 10, the second shrapnel 16 and lower gasket 18 move up.This step be in order to enable
The Distance Shortened of first shrapnel and the second shrapnel.
Second step presses downwards knob 8, and knob 8 is moved down relative to sleeve 9, cock body 82 can drive the first shrapnel and
Second shrapnel moves down jointly, and the beginning of second spring 12 is compressed, until sliding bar is self-locking in sleeve by microswitch 13
Lower part, in the process, the first shrapnel 15 are moved to 3 upper end of iron core, and are in contact with the upper end of iron core, and band dynamic iron core is transported downwards
Move the lowest part of its stroke so that two ends of transmission line 5 are contacted with attenuator 7, and attenuator accesses transmission channel, signal
Decaying, remains stationary under the action of relay magnetic retentivity of iron core 3.
Third walks, and presses knob 8 downwards again so that microswitch 13 with self-locking function releases self-locking state, the
Under the elastic force effect of two springs 12, sliding bar 10 pushes the first shrapnel 15 and the second shrapnel 16 to move up jointly, until first
Shrapnel touches the upper end of chamber hole, and in the process, the second shrapnel is moved at iron core, and moves upward to it with dynamic iron core
The topmost of stroke so that two ends of transmission line 5 are contacted with substrate transport 6, and attenuator does not access transmission channel, signal
It is unattenuated, remains stationary under the action of relay magnetic retentivity of iron core 3.
Second step and the third step repeated the above process can be completed the decaying of an attenuation units signal with it is unattenuated, it is logical
Being manually stepped for attenuation can be realized in the combination for crossing multiple differential declines units.
When switching back into Program Mode, needs that knob is threaded to topmost after completing above-mentioned third step, release the first bullet
The compressive state of spring so that the distance of the first shrapnel and the second shrapnel becomes larger, and iron core when to Program Mode provides enough skies
Between move.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention should also belong to the present invention's
Protection domain.
Claims (8)
1. a kind of manual, program-controlled dual-purpose type step attenuator, which is characterized in that including program-controlled mechanism and man-operated mechanism, the journey
It includes relay and damping assemblies to control mechanism, is connected with circuit control panel on relay, the center of relay be provided through after
The iron core of electric appliance, iron core move up and down in relay, and the lower end of iron core is fixedly connected there are two push rod, and the lower end of push rod connects
It includes in upper substrate transport and in the next attenuator to have transmission line, the damping assemblies, and the transmission line is located at
Between substrate transport and attenuator；The man-operated mechanism includes knob and sleeve, and knob sleeve is in the top of sleeve, the inside of sleeve
It is provided with sliding bar, the top of sliding bar is connected with knob, and the middle part of sliding bar dress leads between two shrapnels there are two shrapnel
The connection of the first spring is crossed, on sliding bar, two shrapnels laterally extend to outside sleeve the first spring pocket, and the upper end of the iron core is lateral
It extend into the space folded by two shrapnels, the lower part of sliding bar is connected with second spring, lower end and the sleeve phase of second spring
Even；
When disconnecting power supply, attenuator is manual mode；Knob is rotated upwardly to top counterclockwise, after energization, attenuator is
Program Mode.
2. one kind according to claim 1 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that the push rod point
The left and right sides in iron core lower end is not set, and the lower end of push rod is connected with two ends of transmission line respectively, two of transmission line
End is oppositely arranged, and two ends of transmission line are respectively positioned between substrate transport and attenuator.
3. one kind according to claim 1 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that the knob
Inside offers the first cavity of annular, and cylindrical cock body is formed among the first cavity, and the centre of cock body is provided with threaded hole,
First cavity is sleeved on the top of sleeve, and cock body fills in sleeve inner, and the top of sleeve offers the annular the being recessed inwardly
Two cavitys, the second cavity are connected by snap ring with the inner wall of knob, and the top of the sliding bar is threadedly coupled with threaded hole.
4. one kind according to claim 3 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that the sliding bar
Including first body of rod and second body of rod of being connected, first body of rod is located at the upper end of second body of rod, and the diameter of second body of rod is more than the
The top of the diameter of one body of rod, first body of rod is threadedly coupled with threaded hole.
5. one kind according to claim 4 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that the shrapnel packet
It includes in the first upper shrapnel and in the second the next shrapnel, the first shrapnel and the second shrapnel are installed in first body of rod
On, the upper end of the first shrapnel is in contact with the lower end of the cock body, the upper end phase of the lower end of the second shrapnel and second body of rod
Contact, the upper end of the first spring are connected by Upper gasket with the first shrapnel, and the lower end of the first spring passes through lower gasket and the second bullet
Piece is connected, and the cross sectional shape of the Upper gasket is inverted U-shaped, and the cross sectional shape of lower gasket is rectangle.
6. one kind according to claim 4 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that second bar
The side of body is provided with limiting slot, and pin is provided on the side wall of the sleeve, and pin stretches into limiting slot.
7. one kind according to claim 1 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that in the sleeve
Symmetrical two chamber holes are offered on the outer wall in portion, the shrapnel is extended to from chamber hole outside sleeve, and shrapnel can be in chamber hole
It moves up and down.
8. one kind according to claim 1 is manual, program-controlled dual-purpose type step attenuator, which is characterized in that the sliding bar
Lower end be connected with the microswitch with self-locking function, microswitch is located at the inside of second spring, the lower end of microswitch with
The bottom end of sleeve is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670513.2A CN106299566B (en) | 2016-08-15 | 2016-08-15 | A kind of manual, program-controlled dual-purpose type step attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670513.2A CN106299566B (en) | 2016-08-15 | 2016-08-15 | A kind of manual, program-controlled dual-purpose type step attenuator |
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| Publication Number | Publication Date |
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| CN106299566A CN106299566A (en) | 2017-01-04 |
| CN106299566B true CN106299566B (en) | 2018-10-09 |
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| CN201610670513.2A Active CN106299566B (en) | 2016-08-15 | 2016-08-15 | A kind of manual, program-controlled dual-purpose type step attenuator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181025A (en) * | 2017-05-16 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | Microwave transmission system and method for work, RF coaxial switch and electronic measuring instrument |
| CN107658530A (en) * | 2017-09-12 | 2018-02-02 | 中国电子科技集团公司第四十研究所 | A kind of throw switch of dual-purpose type hilted broadsword six |
| CN110034365B (en) * | 2019-05-16 | 2021-08-06 | 北京无线电测量研究所 | Microwave ferrite electrically-controlled attenuator |
| CN112310577B (en) * | 2020-09-25 | 2021-11-02 | 华东光电集成器件研究所 | Waveguide component fastening and connecting device |
| CN113904078B (en) * | 2021-09-29 | 2022-06-24 | 中电科思仪科技股份有限公司 | Waveguide attenuator based on electric control and control method thereof |
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| US8744366B1 (en) * | 2002-04-15 | 2014-06-03 | Richard K. Steen | Digitally programmable circuit for controlling an attenuator |
| CN203277605U (en) * | 2013-05-10 | 2013-11-06 | 华中师范大学 | A three-in-one attenuator |
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