Temperature Switch Automatic Calibration System

Temperature switch is a control element which can generate connecting or disconnecting action according to the temperature changes of the working environment. It is widely used in home appliance, mechanical and electrical, and other industries. As an important component of many devices, temperature switch is qualified or not will directly affect the performance of a lot of equipment. Therefore, accurate test for temperature switch is particularly important.By analyzing the demand for temperature switch automatic verification system on the market, designed and developed a set temperature switch automatic calibration system. To carry out measurement and calibration about temperature switches provide fast and accurate calibration method and apparatus. The automatic calibration system using Labview which is a graphical virtual instrument development platform developed PC software. Programmable OMGA205temperature and humidity test box provides a high precision temperature environment for temperature switch. Using EdgeTech mirror dew point instrument read the temperature from the temperature and humidity test chamber, and the real-time data uploaded to the PC software. Aiming at the structural characteristics of temperature switch, we use Advantech ADAM-4000Department of the intelligent I/O module as the hardware platform. self-development of digital signal acquisition taken switching signal from the temperature switch.PC software written by Labview, the use of OPC technology to achieve real-time synchronization of temperature and switch signal collected from the chamber. The system realizes the value for the temperature switch action and respond accurately detect and calibration values. Fundamentally solve the efficiency, low error and other problems on the currently market using manual testing temperature switch. This calibration system can test temperature switches which are now widely used on the market. Therefore, It provides the possibility of batch automatic real-time detection, non-contact and high precision detection. It is change the current status of domestic measurement industry temperature switch free detection equipment.