A platinum resistance temperature sensor for a hydraulic system and its application method

Abstract

The invention discloses a platinum resistor type temperature sensor for a hydraulic system and a using method thereof. The temperature sensor is composed of a three-way measuring front end and a signal conversion box. The three-way measuring front end includes a three-way tube and a temperature-sensing component. The temperature-sensing component consists of a cylindrical support seat and a platinum resistor. The signal conversion box includes a shell, a signal line interface and a signal conversion circuit board. The temperature sensor can be installed and operated conveniently. Besides, the using method includes: step one, determining a to-be-installed position of a temperature sensor; step two, determining whether to carry out temperature measurement on liquid in a segment, with the temperature to be measured, of a hydraulic pipe; step three, installing a temperature-sensing component; step four, determining a mounting position and a mounting angle of the signal conversion box; step five, measuring the temperature of liquid in the segment, with the temperature to be measured, of the hydraulic pipe; and step six, transmitting temperature data of the liquid in the segment, with the temperature to be measured, of the hydraulic pipe. According to the invention, the temperature-sensing component is installed in the three-way pipe to realize direct contact and temperature measurement with the measured liquid; replacement becomes simple; the signal conversion box can be fixed with or separated from the three-way pipe, so that usage becomes flexible; and measurement becomes accurate.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement of a hydraulic system, and in particular relates to a platinum resistance temperature sensor for a hydraulic system and a use method thereof. Background technique [0002] Hydraulic system temperature sensors are commonly used for temperature control with hydraulic systems. Common hydraulic system temperature sensors are mostly contact temperature sensors. Contact temperature sensors include thermocouple temperature sensors and resistive temperature sensors. There are two installation methods for such temperature sensors. , the first installation method: artificially interrupt the pipeline, add a pipe joint to install a temperature sensor, and directly intrude the sensing part into the oil to feel the oil temperature. This method of temperature measurement is accurate, but it requires the system or components to make corresponding adjustments. Change, destroy the original pipeline ...

AI Technical Summary

Problems solved by technology

Another type of temperature sensor is a non-contact temperature sensor, typically a patch temperature sensor, which uses a special adhesive to attach the sensing part to the outer wall of the hydraulic pipeline, which is easy to install, but because it senses the temperature of the outer wall of the pipeline, the temperature low measurement accuracy

Images