Hydrophobic dual-sealing photoelectric electric-field sensor applicable to high-humidity environment
An electric field sensor and photoelectric technology, applied in the direction of electrostatic field measurement, etc., can solve the problems that are not conducive to the research of streamer and pilot generation, the detection sensitivity of insulator faults is reduced, and the amplitude attenuation of sensor power frequency response is easy to purchase and low in price. , The effect of mature production technology
An electric field sensor and photoelectric technology, applied in the direction of electrostatic field measurement, etc., can solve the problems that are not conducive to the research of streamer and pilot generation, the detection sensitivity of insulator faults is reduced, and the amplitude attenuation of sensor power frequency response is easy to purchase and low in price. , The effect of mature production technology
CN103529311AActive Publication Date: 2014-01-22TSINGHUA UNIV
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[0015] The water-repellent double-sealed photoelectric electric field sensor proposed by the present invention is suitable for high-humidity environment, and its structure is as follows: figure 2 As shown, it is a symmetrical structure, including a shell body 1 , a shell cover 2 , a hydrophobic coating 11 , two sleeves 3 , two optical fiber sheaths 4 , a wafer 8 , an optical waveguide 9 and two optical fibers 10 . The shell cover 2 is covered on the shell body 1 , and the shell cover 5 is provided between the shell cover 2 and the shell body 1 . Two sleeves 3 are symmetrically inserted on both sides of the casing body 1 , and a casing adhesive layer 6 is provided between the sleeves 3 and the casing body 1 . The optical fiber sheath 4 is inserted into the sleeve 3 , and an optical fiber sheath adhesive layer 7 is provided between the optical fiber sheath 4 and the sleeve 3 . The wafer 8 is placed in the package body 1 . The optical waveguide 9 is relatively fixed to the waf...
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The invention relates to a hydrophobic dual-sealing photoelectric electric-field sensor applicable to high-humidity environment and belongs to the technical field of electric-field measurement. The hydrophobic dual-sealing photoelectric electric-field sensor is of a symmetric structure and is characterized in that optical-fiber sheath bonding layers are respectively arranged between a pipe shell cover and a pipe shell body, between sleeves and the pipe shell body as well as between optical-fiber sheaths and the sleeves. A chip is arranged in the pipe shell body, the optical waveguide is relatively fixed with the chip, one end of each of the optical fibers is respectively connected with two side end parts of the optical waveguide, and the other ends of the two optical fibers extend out of optical-fiber sheaths at the two sides of the pipe shell body respectively. A hydrophobic coating is coated on the surfaces of the pipe shell body and the sleeve. The hydrophobic dual-sealing photoelectric electric-field sensor has the advantages that the pipe shell is treated by adopting double sealing and hydrophobicity, so that normal measurement can also be carried out under the environment with the relative humidity being smaller than 90%, no distortion is caused to the waveform of a measured electric field, and further the accuracy of a measurement result is greatly improved. The hydrophobic dual-sealing photoelectric electric-field sensor is especially applicable to regions with the full-year average relative humidity being greater than 60% in China.
Description
technical field [0001] The invention relates to a water-repellent double-sealed photoelectric electric field sensor suitable for high-humidity environment, and belongs to the technical field of electric field measurement. Background technique [0002] With the construction of UHV projects, photoelectric sensors have the advantages of strong electromagnetic compatibility and little interference to the source field, and have gradually become an ideal tool for the measurement of strong electric fields. playing an increasingly important role. Generally, the photoelectric electric field sensor is packaged with a tube casing to protect the internal chip of the sensor from being affected by the complex environment of the engineering site. [0003] The photoelectric electric field sensor is different from the general electronic equipment's requirements for the shell. It not only requires high impact resistance of the shell, but also requires the shell medium to be non-conductive, s...
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Patent Timeline
22 Jan 2014
Publication
CN103529311A
- IPC
- G01R29/12
- Inventors
- 曾嵘; 李婵虓