Interference-resistant and high-stability temperature measurement device and multi-channel thermometer
A temperature measurement device and high-stability technology, applied in measurement devices, thermometers and instruments with physical/chemical changes, etc., can solve problems such as inconvenience, inaccurate temperature measurement, circuit damage and disassembly, and avoid assembly differences, The effect of improving measurement accuracy and improving stability
Pending Publication Date: 2019-10-18
西安和其光电科技股份有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems of inaccurate temperature measurement, damage to the circuit and inconvenient disassembly and assembly of the existing temperature measurement module, and provide an anti-interference and high stability temperature measurement device and multi-channel thermometer
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[0025] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] Existing optical fiber temperature measurement devices are usually separated from the temperature measurement module by an optical fiber jumper, and connected through an SMA connector when in use. The invention provides an anti-interference and high-stability temperature measuring device. The temperature measuring module and the pigtail assembly are integrally packaged, and the final debugging state of each optical fiber coupling module is solidified to avoid assembly differences caused by differences in batch consistency of components. In addition, the device has strong anti-electromagnetic interference and strong anti-static capabilities, and has unique advantages in the field of weak signal detection.
[0027] Such as figure 1 As shown, the present invention provides an anti-interference and high-stability te...
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The invention relates to an interference-resistant and high-stability temperature measurement device and a multi-channel thermometer, and solves the problems that an existing temperature measurement module is not accurate in temperature measurement, a circuit can be damaged and the existing temperature measurement module is not convenient to disassemble and assemble. The temperature measurement device comprises a modular matrix, a light source, an optical split filter, a highpass optical filter, a PD signal detector, a PCBA circuit board, a ball lens, a press nut and a tail fiber assembly, wherein the tail fiber assembly comprises an insertion core, a bare fiber and a connector, the light source is arranged in a cavity of the module matrix, the optical split filter is arranged at a light giving-out side of the light source, the ball lens and the insertion core are sequentially arranged on a transmitting light path, the highpass optical filter and the PD signal detector are arranged ona reflection light path, the insertion core is fixedly arranged on the module matrix, one end of the bare fiber is arranged in the insertion core, the other end of the bare fiber is connected with theconnector, and the PCBA circuit board is electrically connected with the light source and the PD signal detector.
Description
technical field [0001] The invention relates to an optical fiber temperature measuring device, in particular to an anti-interference and high-stability temperature measuring device and a multi-channel temperature measuring instrument. Background technique [0002] In the transformer winding temperature measuring device in the power industry, the optical fiber temperature measuring device has gradually replaced the traditional platinum resistance temperature measuring device with its unique advantages such as high precision, strong anti-interference ability, and small installation size. As one of the key components of the whole system, the optical fiber temperature measuring device is required to have the characteristics of long-term reliable performance, stable output energy and received signal, and strong anti-electromagnetic interference ability. With the continuous improvement of the practical level of semiconductor light-emitting chips, LED light-emitting diodes have bee...
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Login to View More IPC IPC(8): G01K11/32
CPCG01K11/32
Inventor 张文松单娟
Owner 西安和其光电科技股份有限公司