CN203287433U - Portable universal radar frequency measuring instrument - Google Patents
Portable universal radar frequency measuring instrument Download PDFInfo
- Publication number
- CN203287433U CN203287433U CN2013201055695U CN201320105569U CN203287433U CN 203287433 U CN203287433 U CN 203287433U CN 2013201055695 U CN2013201055695 U CN 2013201055695U CN 201320105569 U CN201320105569 U CN 201320105569U CN 203287433 U CN203287433 U CN 203287433U
- Authority
- CN
- China
- Prior art keywords
- differential signal
- signal
- measuring instrument
- frequency divider
- differential
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
The utility model discloses a portable universal radar frequency measuring instrument comprising a magnifying and shaping circuit and a differential receiver. The signal output end of the differential receiver is connected with a signal input end of a differential signal frequency divider 1. The signal output end of the differential signal frequency divider 1 is connected with a signal input end of a differential signal frequency divider 2. The magnifying and shaping circuit and the signal output end of the differential signal frequency divider 2 are connected to a low speed A/D conversion module together. The low speed A/D conversion module is connected with an FPGA. The portable universal radar frequency measuring instrument has the advantages of portability, simple operation and cleartest index, the system has a self checking function, the maintenance is convenient, the rate is high, and the instrument is suitable for a radar troop basic levelperformance test.
Description
Technical field
The utility model belongs to communication technical field, is specifically related to a kind of portable general radar frequency measuring instrument.
Background technology
The development of the update of radar in recent years is very fast, system, model are numerous, no matter be that very large variation has all occurred for index test or maintenance, purchasing the instrument of attaching troops to a unit at random for weapon procurement department has increased difficulty, brings many difficulties for simultaneously army's lower management and station level maintenance.Develop that a kind of can to complete the general purpose radar power detection instrument that the diligent conventional index test that ensures of station level skill can complete again basic unit's maintenance support task be a urgent task.Portable radar universal frequency detecting instrument can be completed this task, and the base level supportability is significant for improving.
The utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, in particular for solving different systems, model is many, the phenomenon that interface is difficult unified, provide a kind of easy to carry, easy and simple to handle, test index to understand, and system and standby self-checking function, easy to maintenance, two-forty, be applicable to the general purpose radar frequency measuring instrument of radar troop's base level performance test.
The utility model is achieved through the following technical solutions:
A kind of portable general radar frequency measuring instrument, it is characterized in that: include amplification and rectification circuit, differential receiver, the signal output part of differential receiver connects the signal input part of differential signal frequency divider one, the signal output part of differential signal frequency divider one connects the signal input part of differential signal frequency divider two, the signal output part of amplification and rectification circuit and differential signal frequency divider two accesses low speed A/D modular converter jointly, and low speed A/D modular converter connects FPGA.
Described a kind of portable general radar frequency measuring instrument is characterized in that: described differential receiver adopts NB6L16, various waveform signals can be converted to the ECL differential signal of standard, and its receive frequency range is DC-6GHz.
Described a kind of portable general radar frequency measuring instrument is characterized in that: described differential signal frequency divider one adopts ZL40800, for wideband, high precision, fixes 8 frequency division ECL differential signal frequency dividers, and the frequency division scope is DC-6GHz.
Described a kind of portable general radar frequency measuring instrument, it is characterized in that: described differential signal frequency divider two adopts SP8782, is 16/17,32/33 multimode ECL differential signal frequency divider, is input as the ECL differential signal, be output as cmos signal, the maximum input signal frequency is 1GHz.
Described a kind of portable general radar frequency measuring instrument is characterized in that: what adopt in described low speed A/D modular converter is the A/D chip of 24.
The utility model has the advantages that:
The utility model instrument is easy to carry, easy and simple to handle, test index understands, and system provides self-checking function for oneself, and easy to maintenance, two-forty, be applicable to radar troop's base level performance test.
Description of drawings
Fig. 1 is structural representation block diagram of the present utility model.
Fig. 2 is CPLD counting measuring frequency principle schematic diagram.
Embodiment
As shown in Figure 1, a kind of portable general radar frequency measuring instrument, include amplification and rectification circuit 1, differential receiver 2, the signal output part of differential receiver 2 connects the signal input part of differential signal frequency divider 1, the signal output part of differential signal frequency divider 1 connects the signal input part of differential signal frequency divider 24, amplification and rectification circuit 1 accesses low speed A/D modular converter 5 jointly with the signal output part of differential signal frequency divider 24, and low speed A/D modular converter 5 connects FPGA 6.
Differential signal frequency divider 1 adopts ZL40800, for wideband, high precision, fixes 8 frequency division ECL differential signal frequency dividers, and the frequency division scope is DC-6GHz.
Differential signal frequency divider 24 adopts SP8782, is 16/17,32/33 multimode ECL differential signal frequency divider, is input as the ECL differential signal, is output as cmos signal, and the maximum input signal frequency is 1GHz.The utility model has only been used its 16 frequency divisions.
What adopt in low speed A/D modular converter 5 is the A/D chip of 24.
As Fig. 2, f
0For the clock frequency of high precision temperature compensation crystal oscillator (TCXO), its frequency is 10M, and degree of stability is ± 1ppm.f
0Become through the 10M frequency division signal F1H normal period that frequency is 1Hz.F1H passes through the d type flip flop two divided-frequency in control module CONTROL again, and producing pulsewidth is the counting gate signal GATE of 1S, and this signal controlling counting module is counted when its high level.The GATE signal is through the anti-phase read signal LAT that becomes, and it allows computing machine that count results is read away when high level.After completing, reading, by GATE counting gate signal and F1H clock signal and non-, produces reset signal CLR, to counter O reset.
The 10MHZ-50MHZ signal is counted by CPLD by the signal transformation circuit shaping, and the 50MHZ-5GHZ signal, by the CPLD counting,, by the computing machine reading result, calculates the signal frequency value after 128 frequency divisions, and the design Virtual Instrument shows.
Claims (5)
1. portable general radar frequency measuring instrument, it is characterized in that: include amplification and rectification circuit, differential receiver, the signal output part of differential receiver connects the signal input part of differential signal frequency divider one, the signal output part of differential signal frequency divider one connects the signal input part of differential signal frequency divider two, the signal output part of amplification and rectification circuit and differential signal frequency divider two accesses low speed A/D modular converter jointly, and low speed A/D modular converter connects FPGA.
2. a kind of portable general radar frequency measuring instrument according to claim 1 is characterized in that: described differential receiver adopts NB6L16, various waveform signals can be converted to the ECL differential signal of standard, and its receive frequency range is DC-6GHz.
3. a kind of portable general radar frequency measuring instrument according to claim 1 is characterized in that: described differential signal frequency divider one adopts ZL40800, for wideband, high precision, fixes 8 frequency division ECL differential signal frequency dividers, and the frequency division scope is DC-6GHz.
4. a kind of portable general radar frequency measuring instrument according to claim 1, it is characterized in that: described differential signal frequency divider two adopts SP8782, it is 16/17,32/33 multimode ECL differential signal frequency divider, be input as the ECL differential signal, be output as cmos signal, the maximum input signal frequency is 1GHz.
5. a kind of portable general radar frequency measuring instrument according to claim 1 is characterized in that: what adopt in described low speed A/D modular converter is the A/D chip of 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201055695U CN203287433U (en) | 2013-03-07 | 2013-03-07 | Portable universal radar frequency measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201055695U CN203287433U (en) | 2013-03-07 | 2013-03-07 | Portable universal radar frequency measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203287433U true CN203287433U (en) | 2013-11-13 |
Family
ID=49543789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201055695U Expired - Fee Related CN203287433U (en) | 2013-03-07 | 2013-03-07 | Portable universal radar frequency measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203287433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535540A (en) * | 2018-05-08 | 2018-09-14 | 成都信息工程大学 | A kind of method of magnetron radar transmitter frequency transient measurement |
-
2013
- 2013-03-07 CN CN2013201055695U patent/CN203287433U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535540A (en) * | 2018-05-08 | 2018-09-14 | 成都信息工程大学 | A kind of method of magnetron radar transmitter frequency transient measurement |
| CN108535540B (en) * | 2018-05-08 | 2020-10-23 | 成都信息工程大学 | Method for instantaneously measuring transmitting frequency of magnetron radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102176112B (en) | Method for achieving accurate clock timing by arranging RTC (real time clock) in MCU (micro control unit) | |
| CN202362380U (en) | Multifunctional high-precision digital frequency meter | |
| CN101634595B (en) | High-precision platinum resistor temperature measuring system and temperature measuring method based on same | |
| CN104090160A (en) | High-precision frequency measuring device | |
| CN203287433U (en) | Portable universal radar frequency measuring instrument | |
| CN202720273U (en) | High-precision phase difference detection device | |
| CN201780323U (en) | Small-signal measuring instrument | |
| CN105672998A (en) | Oil logging instrument posture data acquisition and teletransmission device | |
| CN209372185U (en) | A kind of CAN bus based oil mass monitoring device | |
| CN207457344U (en) | Equal precision frequency meter based on FPGA and its soft core | |
| CN202886468U (en) | Wideband electronic frequency meter | |
| CN213581764U (en) | Time interval measuring device | |
| CN202853820U (en) | High voltage isolation switch contact finger pressure test instrument | |
| CN204832345U (en) | Digital phase measurement appearance | |
| CN202257088U (en) | GPS (global positioning system) frequency scale locking time interval measuring system based on TDC-GP2 chip | |
| CN205785588U (en) | A kind of integrated temperature sensor in an rfid tag | |
| CN201984307U (en) | ARM Cortex M 0 based digital time difference conversion MCU chip | |
| CN205229298U (en) | Frequency measuring device based on FPGA | |
| CN201569870U (en) | Electronic stopwatch | |
| CN205607472U (en) | Intelligent water meter of internet of things | |
| CN205301428U (en) | Computer protection device of area measurement function | |
| CN203632632U (en) | High-precision zero-crossing synchrotimer | |
| CN210442435U (en) | Portable frequency meter for electric power overhaul | |
| CN204705713U (en) | Mine-used I. S laser range finder | |
| CN204731227U (en) | A kind of air quality detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20190307 |