Control and acquisition device of microwave power heatmeter

A microwave power and power control module technology, applied in the direction of measuring devices, calorimeters, measuring heat, etc.

Inactive Publication Date: 2012-05-02
中国航天科工集团第二研究院二〇三所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a control and acquisition device for a microwave power calorimeter to solve the problems of measurement control and data acquisition in the process of calorimeter testing and value transfer

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  • Control and acquisition device of microwave power heatmeter
  • Control and acquisition device of microwave power heatmeter

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Embodiment Construction

[0017] A control and acquisition device for a microwave power calorimeter, comprising: a signal source 1, a DC source 2, a power divider 3, a calorimeter 4, a temperature controller 5, a temperature measuring instrument 8, a digital voltmeter 6, a small power The meter 7 also includes: a power control module 9, a power / voltage acquisition module 10, and a temperature acquisition module 11.

[0018] The function of the power control module 9 is to control the signal source 1 or the DC source 2 to periodically add and subtract microwave power or DC power to the calorimeter 4 when the temperature inside the calorimeter 4 is stable. Change the time when microwave or DC power is added, the circulation mode of microwave power and DC power, the frequency and power level of microwave signals, etc. as required.

[0019] The function of the power / voltage acquisition module 10 is: after adding microwave power or DC power to the calorimeter 4, use a small power meter 7 or a digital voltme...

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Abstract

The invention discloses a control and acquisition device of a microwave power heatmeter. The control and acquisition device comprises a signal source (1), a direct current source (2), a power divider (3), a heatmeter (4), a temperature controller (5), a thermodetector (8), a digital voltmeter (6) and a small power meter (7), and further comprises a power control module (9), a power/voltage acquisition module (10) and a temperature acquisition module (11). The device is based on an instrument and meter technology, a computer technology, automatics and a testing technology, and adopts a modularstructure, a general purpose interface bus (GPIB) and other communication protocols, so an automatic testing system with practicability is developed. The control and acquisition device has the characteristics of accurate functional partitioning, modularization and integration, and can realize the parameter set, parameter variation trend processing and display, automatic control of the testing process and procedures, real-time acquiring and processing of the measuring and testing data, real-time display, storage and playback, analysis, automatic judging and other functions.

Description

technical field [0001] The invention relates to a control and acquisition device, in particular to a control and acquisition device for a microwave power calorimeter. Background technique [0002] Microwave power is one of the most basic parameters in the microwave field. When establishing microwave low power standards, the calorimeter method is often used. The microwave power calorimeter is an instrument that measures the temperature change after the load absorbs power, and obtains the value of the measured microwave power according to the temperature change caused by the DC power and the microwave power. The advantages of microwave power calorimeter are high measurement accuracy, strong overload capacity, large dynamic range, and good impedance matching; the disadvantages are complex structure, large time constant, long measurement time, and high requirements for the stability of ambient temperature and supporting measurement equipment. . [0003] Due to the complex stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K17/00
Inventor 张伟伟何巍杨绪军
Owner 中国航天科工集团第二研究院二〇三所
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