A constant temperature detection device for temperature sensor

Abstract

The invention discloses a constant-temperature detection device for a temperature sensor. The constant-temperature detection device comprises a constant-temperature detection box, a first box cover, a second box cover, a third box cover, a to-be-detected temperature sensor and a thermocouple sensor, wherein the opening of the constant-temperature detection box is formed upwards; the upper end of one side of the constant-temperature detection box is provided with a hot air inlet; the lower end of the other side of the constant-temperature detection box is provided with an air outlet; a heat preserving sleeve which sticks close to a box wall is arranged in the constant-temperature detection box; the thermocouple sensor penetrates through the constant-temperature detection box and the heat preserving sleeve in sequence from the bottom surface of the constant-temperature detection box, and extends into the heat preserving sleeve; the opening of the constant-temperature detection box is enclosed through the first box cover; the third box cover, the second box cover and the first box cover are connected with the constant-temperature detection box through first fasteners; the to-be-detected temperature sensor penetrates through the third box cover, the second box cover and the first box cover in sequence; a pressing part for fixing the to-be-detected temperature sensor on the second box cover is arranged on the third box cover. The constant-temperature detection device is simple in structure, the production cost is reduced, the detection accuracy is increased, and the detection efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of temperature sensor detection, in particular to a constant temperature detection device for a temperature sensor. Background technique [0002] Among various sensors, the temperature sensor is the most widely used sensor. The proportion of temperature sensors in society greatly exceeds that of other types of sensors, and the sensitive components of most temperature sensors are semiconductor thermistors, because within the working area, semiconductor thermistors have sensitivity that other components do not have . [0003] The resistance of the thermistor in a temperature sensor will decrease as the external temperature increases. The traditional detection method for this type of temperature sensor is mainly water detection or oil detection method (selected according to the temperature range that needs to be heated), that is, the temperature sensor is placed under the liquid conditions of different temper...

AI Technical Summary

Problems solved by technology

Due to the large capacity of the water tank or oil tank, high heat capacity, and slow heating and cooling speed, it often takes a long time to wait for this method to detect, and it is difficult to uniformly control the water temperature, the measurement accuracy cannot be guaranteed, and it cannot meet the requirements in actual production.

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