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Microwave multiparameter measuring device, and detecting method

A measuring device, microwave measurement technology, applied in the direction of measuring device, using microwave means for material analysis, electrical digital data processing, etc., can solve the problems of measurement accuracy and high cost performance, inconvenient use, single function, etc., to achieve correct and fast detection Steps, cost saving, cost-effective effect

Inactive Publication Date: 2007-07-25
XIAMEN UNIV
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Problems solved by technology

[0008] The purpose of the present invention is to aim at the shortcomings of the above-mentioned microwave automatic measuring device, such as single function and inconvenient use, to provide a device that can realize point frequency and sweep frequency measurement in manual and automatic states, and collect, calculate and display data. , error analysis and processing, measurement accuracy and high cost performance, especially suitable for microwave multi-parameter measurement devices and microwave multi-parameter detection methods that require manual operation and then automatic operation in microwave experiment teaching

Method used

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  • Microwave multiparameter measuring device, and detecting method
  • Microwave multiparameter measuring device, and detecting method
  • Microwave multiparameter measuring device, and detecting method

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Embodiment Construction

[0036] As shown in Figure 1, the microwave multi-parameter measurement device consists of a microwave measurement system I and a microwave network analyzer II.

[0037] The microwave measurement system I is equipped with a VCO voltage-controlled oscillator 1, an isolator 2, a variable attenuator 3, an absorption frequency meter 4, a waveguide measurement line 5 with a stepping motor, a device under test 6 and a crystal detector 7. A VCO voltage-controlled oscillator 1 is used as a microwave source, which generates microwave power with adjustable frequency. The microwave frequency is controlled by a microcomputer, and the control voltage is input from the fixed terminal of the second point frequency / sweep frequency selection switch K4. A certain frequency can be obtained. Fixed voltage can also obtain voltages of different amplitudes and arbitrary shapes, especially sawtooth wave voltages, so it is convenient to provide point frequency and frequency sweep signals of different fr...

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Abstract

A microwave multi-parameter measurement device consists of microwave measurement unit including VCO microwave source of pressure-controlled oscillator, isolator, variable attenuator, absorption frequency meter, waveguide measurement line, stepping motor and crystal detector; microwave network analyzer including DC graded amplifier, driving circuit of stepping motor, generator of saw tooth wave, reference voltage circuit, two voltage-dividing circuits, blocking circuit, wave filtering circuit, embedded microcomputer, liquid crystal display, USB interface data collection card, etc.

Description

technical field [0001] The invention relates to a microwave measurement device, in particular to a microwave multiple parameter measurement device and a detection method thereof under the condition of spot frequency and frequency sweep in manual and automatic states. Background technique [0002] Most of the existing microwave measurement devices are those used in the industrial field, such as the invention of the 25th Institute of the Second Research Institute of the Ministry of Aerospace Industry, the Ministry of Petroleum Industry and the Oil Reservoir Physical Property Testing Center of the Academy of Petroleum Exploration and Development Research Institute with application number 86100707 The patent application provides a microwave measurement device for water saturation of rock core physical model used in petroleum development research. In order to solve the instantaneous distribution problem of water saturation of rock core physical model, the invention adopts multi-el...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N22/00G06F17/00
Inventor 肖芬倪祖荣林国春花健敏王冬
Owner XIAMEN UNIV
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