CN208224360U - A kind of microwave frequency measuring instrument - Google Patents
A kind of microwave frequency measuring instrument Download PDFInfo
- Publication number
- CN208224360U CN208224360U CN201821290405.3U CN201821290405U CN208224360U CN 208224360 U CN208224360 U CN 208224360U CN 201821290405 U CN201821290405 U CN 201821290405U CN 208224360 U CN208224360 U CN 208224360U
- Authority
- CN
- China
- Prior art keywords
- measuring instrument
- microwave frequency
- retractable aerial
- amplifier
- aerial group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of microwave frequency measuring instruments, are related to frequency measurement field.The measuring instrument includes: retractable aerial group, amplifier and ammeter, and the output end of retractable aerial group and the input terminal of amplifier connect, and the output end of amplifier is connect with ammeter.A kind of microwave frequency measuring instrument provided by the utility model, signal to be detected is obtained by retractable aerial group, then pass through the determining length with the matched retractable aerial group of measured signal of the current peak of ammeter, the precise frequencies that the signal received can be quickly and easily obtained according to the length of retractable aerial group and existing reduction formula can measure broadband, the frequency in microwave section.
Description
Technical field
The utility model relates to frequency measurement field more particularly to a kind of microwave frequency measuring instruments.
Background technique
Currently, the measurement range of existing frequency measuring instrument is usually in tens megahertzs, such as oscillograph, for frequency in Ji
The signal of conspicuous magnitude can not be measured with common oscillograph.And measured signal is not usually standard sine wave, i.e., using high at present
1000 megahertzs or so of the oscillograph at end is also difficult to measure frequency, while 1000 megahertzs or so of oscillograph or frequency spectrograph cost
It is expensive, it is difficult to promote.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of microwave frequency measurement
Instrument.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of microwave frequency measuring instrument, comprising: retractable aerial group, amplifier, ammeter and shielded signal line, it is described can
The output end of telescopic antenna group is connect with the input terminal of the amplifier, and the output end of the amplifier and the ammeter connect
It connects, is connected between each composed structure by shielded signal line.
The beneficial effects of the utility model are: a kind of microwave frequency measuring instrument provided by the utility model, by scalable
Antenna sets obtain signal to be detected, and the length of retractable aerial group is then determined by the current peak of ammeter, according to can
The length of telescopic antenna group and existing reduction formula can quickly and easily obtain the precise frequencies of the signal received, can
Measure broadband, the frequency in microwave section.
Specifically, the application can measure the microwave band frequency in 0.8G~1.6GHz.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram that the embodiment of microwave frequency measuring instrument provides of the utility model；
Fig. 2 is a kind of antenna structure view that the embodiment of microwave frequency measuring instrument provides of the utility model.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, being a kind of structural schematic diagram that the embodiment of microwave frequency measuring instrument provides of the utility model, the survey
Amount instrument includes: retractable aerial group 1, amplifier 2, ammeter 3 and shielded signal line, the output end of retractable aerial group 1 with put
The input terminal connection of big device 2, the output end of amplifier 2 are connect with ammeter 3.
It should be noted that the connection between instrument each section uses shielded signal line, to reduce outer bound pair current signal
Influence.In statement hereafter, shielded signal line is referred to as conducting wire.
Retractable aerial group 1 is made of two telescopic antenna, and two telescopic antenna can extend or shorten simultaneously；Have
Enhancing receives the performance of signal, both enhances receptivity, and increase the length constant interval of antenna, i.e. frequency measurement area
Between.
Telescopic antenna has the identical mast of multiple lengths, and the internal diameter of each mast is different, makes each mast can
To be sequentially sleeved in together, while after two masts are nested together, the connecting pin of two masts is additionally provided with anti-drop device,
Prevent two masts from falling off when being stretched to maximum distance.
As shown in Fig. 2, being wherein any one composition antenna of retractable aerial group, the output end of mast has one to connect
Mouth 11, this interface 11 can be connect by conducting wire etc. with the input terminal of amplifier 2, and the input terminal of amplifier 2 also has a letter
Number input interface, for being connect with conducting wire.The inner core of conducting wire can transmit signal and electric current, by the inner core and interface of conducting wire one end
11 contacts, the other end are connect with amplifier 2, so that it may realize the signal for detecting retractable aerial group 1 in the form of electric current
Amplifier 2 is sent to by conducting wire.
Retractable aerial group should be understood that for guarantee retractable aerial group 1 electric conductivity, should select: flexible node it
Between contact is good, the good telescopic antenna of electric conductivity.
It should be noted that amplifier 2 is can be the voltage of input signal or the device of power amplification, by electron tube or crystalline substance
Body pipe, power transformer and other electric elements composition.Signal input interface and signal output are provided on the shell of amplifier 2
Interface is also equipped with the connector to match on conducting wire, the connector on conducting wire is inserted into signal input interface, so that it may realize
Connection between retractable aerial group 1 and amplifier 2.
Similarly, it can also be connected by conducting wire between amplifier 2 and ammeter 3, be provided with letter on the shell of amplifier 2
Number input interface and signal output interface are provided with the connector to match on conducting wire, the connector of conducting wire one end are inserted into signal
In output interface, the other end is connect with ammeter 3, so that it may realize the connection between amplifier 2 and ammeter 3.
Specifically, the positive and negative terminal of ammeter 3 can be connected on conducting wire, is connected to the inner core of conducting wire,
It can realize the connection between ammeter 3 and conducting wire.
It should be noted that according to half-wave antenna principle: when the length of antenna is the half of wavelength, received signal is strong
Degree is maximum.By the slowly elongation simultaneously by the both ends of retractable aerial group 1, the reading of ammeter 3 is observed, when the number of ammeter 3
When value reaches maximum, length at this time is optimum length, and then can obtain wavelength according to the optimum length of antenna, then by wave
Length=light velocity * (1/ frequency), we can obtain the frequency of signal.
It should be understood that half-wave antenna principle and wavelength equation are all the prior arts, any improvement is not present.
A kind of microwave frequency measuring instrument provided in this embodiment, obtains signal to be detected by retractable aerial group 1, so
Afterwards by the variation of the electric current of ammeter 3, the length of retractable aerial group 1 corresponding to current peak is recorded, determination can stretch
The length of contracting antenna sets 1 can quickly and easily obtain reception according to the length of retractable aerial group 1 and existing reduction formula
The precise frequencies of the signal arrived can measure broadband, the frequency in microwave section.
It optionally, in some embodiments, can also include: linear transducer, linear transducer is scalable for measuring
The length of antenna sets 1.
It should be noted that the wide variety of linear transducer, the specific application method of each linear transducer is ability
The common knowledge in domain to avoid there may be being unaware of linear transducer application method, and then can not learn that linear transducer has
Those skilled in the art of body connection relationship, it is possible to linear transducer now for differing the linear transducer of method principle
Connection relationship is illustrated.
ZLS-Px differs method length measurement sensor and judges quilt with different location of the certain point in entire camera lens in camera lens
Survey the length of object.Take a picture like with camera, camera be it is fixed, background will not change, then under the same background, Ren Wuzhan
In different positions, for personage like being testee, he moves how many length, and sensor can judge.ZLS-
There are two ports for Px aberration velocity sensor: an emission port issues LED light source；One is port of taking pictures at a high speed, is realized
CCD area high speed imaging comparison differentiates the mobile length of testee by the image comparison of two time in a very short period of time
Degree, in conjunction with the algorithm of sensor internal, moreover it is possible to the speed of output testee in real time.LED light emission port emits against measured object
Laser out is reflected into camera shooting receiving port, is transmitted to signal processor after receiving signal, its speed is calculated by algorithm,
And then obtain length.
In another example the KH system displacement sensor of AMT company, is grown by position of the detection magnet ring on pressure-resistant outer tube
The top of retractable aerial group 1, can be resisted detection magnet ring, bottom resists non-magnetic gasket, so that it may to antenna by degree measurement
Length measure.
As it can be seen that linear transducer can be different according to the difference of linear transducer from the specific location relationship of antenna, this
It is well known to those skilled in the art, details are not described herein.
It optionally, in some embodiments, can also include: terminal, terminal is connect with linear transducer, for showing root
The microwave frequency obtained according to the length of retractable aerial group 1.
It should be noted that linear transducer all has data output interface, with output data, terminal can be by wired
Or wirelessly connect with linear transducer, the data that linear transducer measurement obtains are read, and change according to well known formula
Calculation obtains the frequency of measuring signal.
It optionally, in some embodiments, can also include: stepper motor and transmission mechanism, the signal of stepper motor is defeated
Enter end to connect with terminal, the driving end of one end of transmission mechanism and stepper motor connects, the other end of transmission mechanism with it is scalable
The telescopic end of antenna sets 1 is fixedly connected.
It should be understood that the telescopic end of retractable aerial group 1 is exactly the top that can be stretched.
It should be noted that transmission mechanism can become the angle variables of stepper motor apart from variable.
For example, transmission mechanism may include pulley, the center of pulley is fixedly connected with the shaft of stepper motor, pulley with
The shaft of stepper motor is rotated, and semi-rigid material, such as plastic tube, rubber tube is wound on pulley, by semi-rigid material
One end connect with the telescopic end of retractable aerial group 1, so that it may drive retractable aerial group 1 flexible by stepper motor.
In another example transmission mechanism can also include mechanical gear, the center of mechanical gear and the shaft of stepper motor are fixed
Connection drives rotation gear by mechanical gear by the way that rotation gear is arranged at the telescopic end of retractable aerial group 1 layer by layer,
And then realization makes the flexible of retractable aerial group 1.
Optionally, in some embodiments, one end of transmission mechanism can pass through the driving of ball screw and stepper motor
End connection.
It should be understood that the ball of ball screw is fixed on the telescopic end of retractable aerial group 1, the screw rod of ball screw and stepping
The driving end of motor is fixedly connected, and when the rotation of the shaft of stepper motor, ball can be driven to move on screw rod, and then realize
Control the flexible of retractable aerial group 1.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ", " specific example " or
The description of " some examples " etc. means that specific method, device or feature described in conjunction with this embodiment or example are contained in this reality
With at least one novel embodiment or example.
In the present specification, the schematic representation of the above terms does not necessarily have to refer to the same embodiment or example.
Moreover, specific features, method, apparatus or the feature of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification
The feature of embodiment or example and different embodiments or examples is combined.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of microwave frequency measuring instrument characterized by comprising retractable aerial group, amplifier and ammeter, it is described to stretch
The output end of contracting antenna sets is connect with the input terminal of the amplifier, and the output end of the amplifier is connect with the ammeter.
2. microwave frequency measuring instrument according to claim 1, which is characterized in that further include: linear transducer, the length
Sensor is used to measure the length of the retractable aerial group.
3. microwave frequency measuring instrument according to claim 2, which is characterized in that further include: terminal, the terminal with it is described
Linear transducer connection, for showing the microwave frequency obtained according to the length of the retractable aerial group.
4. microwave frequency measuring instrument according to claim 3, which is characterized in that further include: stepper motor and transmission mechanism,
The signal input part of the stepper motor is connect with the terminal, the driving of one end of the transmission mechanism and the stepper motor
End connection, the other end of the transmission mechanism are fixedly connected with the telescopic end of the retractable aerial group.
5. microwave frequency measuring instrument according to claim 4, which is characterized in that one end of the transmission mechanism passes through ball
Screw rod is connect with the driving end of the stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290405.3U CN208224360U8 (en) | 2018-08-10 | 2018-08-10 | A kind of microwave frequency measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290405.3U CN208224360U8 (en) | 2018-08-10 | 2018-08-10 | A kind of microwave frequency measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN208224360U true CN208224360U (en) | 2018-12-11 |
| CN208224360U8 CN208224360U8 (en) | 2019-02-19 |
Family
ID=64506110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821290405.3U Active CN208224360U8 (en) | 2018-08-10 | 2018-08-10 | A kind of microwave frequency measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208224360U8 (en) |
-
2018
- 2018-08-10 CN CN201821290405.3U patent/CN208224360U8/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN208224360U8 (en) | 2019-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11719646B1 (en) | Pipe mapping systems and methods | |
| CN205484806U (en) | Laser detection equipment | |
| CN106353606A (en) | Device and method for omnidirectional detection of power-frequency electromagnetic field | |
| CN1692871A (en) | Three-D curved line shape testing device and method of flexible endoscope | |
| CN104655714A (en) | Detecting and imaging method and detecting and imaging device based on broadband magnetic wave reflection path parameter identification | |
| CN208224360U (en) | A kind of microwave frequency measuring instrument | |
| CN105606229B (en) | Rotary scanning type exempts to dress indoor positioning device and method | |
| CN105698749A (en) | Laser distance measuring sensor | |
| CN104613922B (en) | The measuring system and method for a kind of contour of object | |
| CN109855796A (en) | A kind of testing machine force value automated calibration system and method | |
| CN106840005A (en) | A kind of aerial condutor line footpath noncontact assay method and specifications of cables plate | |
| CN205245997U (en) | Displacement sensor | |
| CN106895921A (en) | A kind of product LED status detecting system and condition detecting device | |
| CN208283310U (en) | A kind of pipeline state inspection system | |
| CN110440973A (en) | A kind of tensile measurer apparatus and system | |
| CN206803969U (en) | A kind of dot laser coplane degree test device | |
| CN109506616A (en) | A kind of structural plane occurrence wireless measurement instrument | |
| CN112945974B (en) | Endoscope-based product defect detection device and detection method | |
| CN104121862A (en) | Optical caliber measuring device and measuring method for aerial cable | |
| CN212646044U (en) | Illuminance uniformity measuring device and measuring system | |
| CN106596060A (en) | Parallel test device and resolution power test method | |
| CN107037315B (en) | A kind of large size workshop inspector machine winding detection device | |
| CN220104083U (en) | Visual inclinometer tube torsion measuring device | |
| CN110132547A (en) | A kind of endoscope head optical performance detecting device and detection method | |
| CN110441057A (en) | A kind of marine shaft remote sensing type strain measurement system and its measuring device and measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 273165 College of Physical Engineering, Qufu Normal University, No. 57 Jingxuan West Road, Qufu City, Jining City, Shandong Province Patentee after: Qufu Normal University Address before: 273165 College of Physical Engineering, Qufu Normal University, No. 57 Jingxuan West Road, Qufu City, Jinan Province, Shandong Province Patentee before: Qufu Normal University |
|
| CU01 | Correction of utility model patent | ||
| CU01 | Correction of utility model patent |
Correction item: Address of the patentee Correct: College of Physical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu City, Jining City, Shandong Province False: College of Physical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu City, Jinan Province, Shandong Province Number: 50-01 Page: The title page Volume: 34 Correction item: Address of the patentee Correct: College of Physical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu City, Jining City, Shandong Province False: College of Physical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu City, Jinan Province, Shandong Province Number: 50-01 Volume: 34 |