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High-voltage-resistant dual-redundancy temperature and humidity sensor

A temperature and humidity sensor, high pressure technology, applied in the field of sensing, can solve the problems of inability to meet sealing requirements, deviation, measurement deviation, etc., and achieve the effect of reducing product failure rate, small measurement error, and high pressure resistance

Pending Publication Date: 2022-02-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different installation positions of the two humidity sensors and the temperature sensor, measurement deviation may occur. In addition, for the measurement of humidity in a closed tank, the traditional temperature and humidity sensor cannot meet the sealing requirements, which will also cause large deviations

Method used

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  • High-voltage-resistant dual-redundancy temperature and humidity sensor
  • High-voltage-resistant dual-redundancy temperature and humidity sensor

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Embodiment Construction

[0008] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0009] combine figure 1 and figure 2 , a high-voltage double-redundancy temperature and humidity sensor described in the present invention includes a nozzle 1, a polymer plug 5, a sintered terminal 7, a first circuit board 8, a second circuit board 9, a bracket 10, a housing 11, The electrical connector 12 and the two temperature and humidity sensitive elements 4, the front end of the housing 11 has no end cover, the front end of the housing 11 is fixedly connected to the rear outer wall of the nozzle 1, and an introduction cavity is formed between the two. The nozzle 1 is a revolving body, along its central axis, there are three-stage through holes with increasing diameters from front to back, which are the first-stage holes, the second-stage holes and the third-stage holes in sequence, and the third-stage holes are bottom-oriented. The molecular plug ins...

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Abstract

The invention discloses a high-voltage-resistant dual-redundancy temperature and humidity sensor. Two temperature and humidity sensitive elements are embedded into a shell, temperature and humidity signal dual-path redundancy measurement can be achieved, and the whole sensor can bear a high-voltage environment through structural design. The two temperature and humidity sensitive elements are embedded in a filler neck and are bonded and fixed through an adhesive. The filler neck is additionally provided with a hole, moisture at the front end is prevented from entering the rear end through a macromolecule plug, and pressure on the two sides of the humidity sensitive element is balanced. The rear end is welded with the filler neck through a sintering terminal, an electric signal is transmitted to a rear-end circuit through a sintering terminal lead, and medium pressure is isolated at the front end by the sintering terminal.

Description

technical field [0001] The invention belongs to sensing technology, in particular to a high-pressure-resistant double-redundancy temperature and humidity sensor. Background technique [0002] At present, the temperature and humidity sensor is generally used for temperature and humidity measurement in the atmospheric environment, and the currently used temperature and humidity sensor has only one signal, which has certain limitations for some occasions with high temperature and humidity control requirements. In order to meet the humidity For occasions with high control requirements, the traditional method is to install two humidity sensors and two temperature sensors to achieve redundancy, so as to realize the measurement of temperature and humidity. However, due to the different installation positions of the two humidity sensors and the temperature sensor, there may be measurement deviations. In addition, for the measurement of the humidity in the closed tank, the traditiona...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01D11/24
CPCG01D21/02G01D11/245
Inventor 崔艳凤侯鸿道商飞
Owner NANJING UNIV OF SCI & TECH
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