Demodulator and demodulation method of coaxial cable strain sensor based on gain phase detector
A strain sensor and coaxial cable technology, applied in the field of communication, can solve problems such as difficulty in meeting high precision, inability to use, and complex demodulation methods
Active Publication Date: 2021-04-30
WATTS GALLOP SUZHOU SAFETY MONITORING INSTR
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However, the vector network analyzer is a general-purpose electromagnetic wave energy test equipment, which cannot be used in actual engineering, and has strong limitations on the use environment, and the demodulation method is relatively complicated, and the measurement accuracy is low, which is difficult to meet the modern high-precision requirements. Require
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] Embodiments of the invention include:
[0031] A demodulator based on a gain phase detector coaxial cable strain sensor, including a digital hardware part and an analog hardware part, the digital hardware part collects the analog data of the analog hardware part and converts it into a digital signal for data processing and data transmission.
[0032] Such as figure 1 As shown, the digital hardware part includes MCU circuit, power supply, ADC circuit, high frequency board circuit, interface circuit, reference...
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The invention discloses a demodulator based on a coaxial cable strain sensor of a gain phase detector, which includes a digital hardware part and an analog hardware part. The digital hardware part collects the analog data of the analog hardware part and converts it into a digital signal for performing For data processing and data transmission, the analog hardware part includes VCO circuit, power amplifier, VCO power supply, filter, coupler, RF / IF gain phase detector and microwave switch. Through the above method, the demodulation instrument and demodulation method based on the gain phase detector coaxial cable strain sensor provided by the present invention adopts the RF / IF gain phase detector to detect the phase-frequency characteristics and amplitude-frequency characteristics of the sensor, and the phase information is accurate. Calculate the tiny deformation of the coaxial cable strain sensor, with high precision, small error and strong environmental adaptability.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a demodulator and demodulation method based on a gain phase detector coaxial cable strain sensor. Background technique [0002] Coaxial cable strain sensors are used in various strain monitoring scenarios such as rail deformation monitoring, oil and gas pipeline deformation monitoring, bridge deformation monitoring, etc. The coaxial cable strain sensor is a kind of sensor, and the demodulator is used to demodulate the coaxial cable strain sensor, so it can be applied in multiple strain monitoring fields. [0003] At present, there is no regulator and other equipment specially used for demodulating the coaxial cable strain sensor in the market. In the prior art, a vector network analyzer is required to demodulate the coaxial cable strain sensor. A vector network analyzer is an indispensable measurement ruler for product function and performance testing, especially in produc...
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IPC IPC(8): G01B15/06H04B3/54
CPCG01B15/06H04B3/54
Inventor 王念勇魏明辉白铁瑛
Owner WATTS GALLOP SUZHOU SAFETY MONITORING INSTR