A demodulator and demodulation method for reflective coaxial cable Faber sensor
A coaxial cable and sensor technology, applied in the field of strain monitoring, can solve problems such as inability to use, low measurement accuracy, and complex demodulation methods, and achieve the effects of small errors, strong environmental adaptability, and high accuracy
Active Publication Date: 2021-04-30
WATTS GALLOP SUZHOU SAFETY MONITORING INSTR
View PDF20 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] 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.
[0021] Such as figure 1 As shown, embodiments of the present invention include:
[0022] A demodulator of reflective coaxial cable Faber sensor, comprising VCO circuit, power splitter, first coupler, second coupler, wave detector, first port, second port and sensor, described VCO The circuit is connected with the power divider, and the power divider is respectively connected with the first coupler and the second coupler, and the first coupler and the second coupler are connected with the first port and the second po...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a demodulator of a reflective coaxial cable Farbo sensor, comprising a VCO circuit, a power divider, a first coupler, a second coupler, a detector, a first port, a second port and a sensor, The VCO circuit is connected with the power divider, and the power divider is connected with the first coupler and the second coupler respectively, and the first coupler and the second coupler pass through the first port and the second coupler respectively. The second port is connected with the sensor, and the first coupler and the second coupler are respectively connected with the detector. Through the above method, the demodulator and demodulation method of the reflective coaxial cable Faber sensor provided by the present invention can dynamically monitor the state of the sensor in real time, obtain the dynamic frequency offset by cyclic scanning, and calculate the deformation variable according to the frequency offset, with high precision and high precision. Small error and strong adaptability to the environment.
Description
technical field [0001] The invention relates to the technical field of strain monitoring, in particular to a demodulator and demodulation method for a reflective coaxial cable Faber sensor. Background technique [0002] The coaxial cable strain sensor is a sensor that can be used in strain monitoring scenarios, such as pipeline deformation monitoring, bridge deformation monitoring, rail deformation monitoring and other large-scale deformation monitoring. 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 production testing. However, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01B15/06
CPCG01B15/06
Inventor 王念勇魏明辉白铁瑛
Owner WATTS GALLOP SUZHOU SAFETY MONITORING INSTR