Temperature sensor facilitating core pulling

Abstract

The invention discloses a temperature sensor facilitating core pulling. The temperature sensor comprises a mounting shaft, a fixing assembly, a damping assembly, a rubber external threaded pipe and aconnecting assembly; a mounting groove is formed in the right end surface of the mounting shaft, and a thermocouple is arranged in the mounting groove; the fixing assembly comprises a connecting pipe,a fixing ring, an extrusion spring and an extrusion barrel, the right end of the mounting shaft is in threaded connection with the left end of the interior of the connecting pipe, the fixing ring isfixed in the connecting pipe, the extrusion spring is fixed to the left end face of the fixing ring, and the left end of the extrusion spring is fixed to the right end face of the extrusion barrel; the extrusion barrel is slidably connected to the left end of the interior of the connecting pipe, an opening is formed in the middle of the extrusion barrel, the left end of the extrusion barrel is located in a mounting groove formed in the right end face of the mounting shaft, a thermal resistor or a thermocouple is convenient to replace, and the temperature sensor has very high anti-seismic property and can be mounted very conveniently.

Description

technical field [0001] The invention relates to the technical field of temperature sensors, in particular to a temperature sensor that can facilitate core pulling. Background technique [0002] Temperature transducer (temperature transducer) refers to the sensor that can feel the temperature and convert it into an available output signal. The temperature sensor is the core part of the temperature measuring instrument. The characteristics of materials and electronic components are divided into two types: thermal resistance and thermocouple. The detection part of the contact temperature sensor has good contact with the measured object, also known as a thermometer. The temperature sensor achieves thermal balance through conduction or convection, so that the indicated value of the thermometer It can directly express the temperature of the measured object, and generally has high measurement accuracy. Within a certain temperature measurement range, the thermometer can also measure...

AI Technical Summary

Problems solved by technology

[0002] Temperature transducer (temperature transducer) refers to the sensor that can feel the temperature and convert it into an available output signal. The temperature sensor is the core part of the temperature measuring instrument. The characteristics of materials and electronic components are divided into two types: thermal resistance and thermocouple. The detection part of the contact temperature sensor has good contact with the measured object, also known as a thermometer. The temperature sensor achieves thermal balance through conduction or convection, so that the indicated value of the thermometer It can directly express the temperature of the measured object, and generally has high measurement accuracy. Within a certain temperature measurement range, the thermometer can also measure the temperature distribution inside the object, but for moving bodies, small targets or objects with small heat capacity, it will produce relatively high temperature. Large measurement errors, commonly used thermometers include bimetallic thermometers, glass liquid thermometers, pressure thermometers, resistance thermometers, thermistors and thermocouples, etc., which are widely used in industry, agriculture, commerce and other sectors. In daily life, people also These thermometers are often used. Non-contact temperature sensors are also called non-contact temperature measuring instruments. This instrument can be used to measure the surface temperature of moving objects, small targets, and objects with small heat capacity or rapid temperature changes (transient). Measuring the temperature distribution of the temperature field, the most commonly used non-contact temperature measuring instrument is based on the basic law of black body radiation, called radiation temperature measuring instrument, radiation temperature measurement method includes brightness method (see optical pyrometer), radiation method (see radiation high temperature meter) and colorimetric method (see colorimetric thermometer), all kinds of radiation temperature measurement methods can only measure the corresponding photometric temperature, radiation temperature or colorimetric temperature, most of the existing non-contact temperature sensors are used for Matched with display instruments and computers, it is widely used in petroleum, chemical, steel, electric power and other industrial sectors. In the industrial sector, non-contact temperature sensors are a very common and indispensable product. It has small diameter, bendable, High pressure resistance, anti-vibration, fast thermal response, convenient installation and high reliability, etc. In places with large vibrations, the service life of temperature sensors is often short, which can easily lead to reduced accuracy or short circuit breaks. The probability of tube damage is relatively small, and the frequency of replacing the temperature sensor is high

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