An Anti-vibration Interference Temperature Sensor

Abstract

The invention belongs to the technical field of a sensor and particularly relates to an anti-vibration anti-interference temperature sensor. The anti-vibration anti-interference temperature sensor comprises a sleeve, a thermocouple, a wire, a vibrating cylinder, a vibration damping module, a fixing plate, telescopic rods, a spring, a corrugated pipe, a damping module and a fixing cylinder, whereinthe vibration damping module is arranged between the sleeve and an inner wall of the vibrating cylinder and is used for supporting the sleeve and realizing vibration damping of the sleeve, the wire between the corrugated pipe and the fixing plate is sleeved by the spring, one end of the corrugated pipe and an end surface of the vibrating cylinder are connected through hinging a set of telescopicrods, the damping module is arranged between the corrugated pipe and the fixing cylinder, and the damping module is used for supporting the corrugated pipe and making the moving corrugated pipe subjected to certain damping. The temperature sensor is advantaged in that side impact is absorbed through the telescopic rods, impact transmitted by the vibrating cylinder is absorbed through the damping module, the temperature is tested by the thermocouple under the condition having no impact and no vibration, and accuracy of the test result is improved.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to an anti-vibration interference temperature sensor. Background technique [0002] There are many types of sensors. For the temperature sensor used in the temperature test point of the outlet pipe of the Roots pump, the casing of the temperature sensor is directly inserted into the pipe wall. Due to the large vibration of the Roots pump during operation, the long-term vibration frequency will decrease. The root of the casing of the temperature sensor is fatigued, and finally cracks are generated to cause the temperature sensor casing or the root of the casing to break. If resonance occurs in the pipeline, the temperature sensor is more likely to break at the joint, resulting in a shorter service life of the temperature sensor. [0003] Some technical solutions of anti-vibration and interference temperature sensors have also appeared in the prior art. For example, a Chinese patent w...

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Problems solved by technology

[0004] This technical solution can achieve anti-vibration and has a simple structure; however, in this solution, the impact of the liquid in the pipeline increases the vibration amplitude of the casing, and there is no corresponding device to absorb the impact of the liquid, and the state of vibration affects the measurement results of the sensor. Anti-interference effect is not good

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