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Automobile Rear Window Glass Heating Wire Detection System

2020-08-17 15:31

Infrared thermal camera can be applied to all aspects of the automobile industry, providing a strong guarantee for the safe production and safe driving of automobiles. The rear window glass of a car has a high requirement for temperature change, and keeping it clean and clear is the basic condition for safe driving, so it is very important for the temperature detection and analysis of the rear window glass.

 

1. Why should the rear window of a car be heated?

When the temperature is low in autumn and winter, the rear window glass of the car may freeze, fog, frost and other phenomena, which will greatly affect the driver's visual field during driving and make driving safety impossible to be guaranteed. Therefore, the rear window glass of the car must have a safe and effective glass heating system, which can play the role of deicing, defogging, defrosting, and will not cause the glass to burst due to excessive heating.

The following picture is taken by The 640*480 resolution infrared thermal camera of Yoseen-X series

Heating wire in natural light

 

 

2. How to use infrared thermal camera for temperature analysis of car rear window glass?

The heating system of car rear window glass mainly uses the electric current to generate heat through the resistance electric heating wire embedded in the glass, which is evenly distributed on the whole glass. The main purpose of the temperature analysis of the rear window glass is to check whether the resistance wire of the whole glass is evenly distributed and whether the temperature of the resistance wire will occur too fast and cause glass damage.

In the process of automobile production, engineers can quickly obtain the infrared thermal camera of the resistance wire of the rear window glass in the heating process by using the infrared thermal camera, and analyze the temperature field of the resistance wire and the temperature rising trend of the whole glass by using the supporting infrared analysis software. After analysis, a method can be taken to avoid the possible damage caused by local heating of the glass due to uneven distribution of resistance wires or abnormal resistance at a certain point. Because the resistance wire heating too fast will cause the glass interior heating too fast, and the glass surface temperature change is small, due to thermal expansion and cold shrinkage of the glass will cause an explosion.

 

3. Special software for heating wire detection of rear window glass of Yoseen

Car rear window flexor heating wire detection system mainly using current through glass table into the internal resistance of silk of electric heat and heat evenly distributed on the whole piece of glass, again by infrared thermal camera, set by the software car rear window number testing found that the number of the heating wire output report, used for rapid detection of car rear window heating wire broken.

The system characteristics

1) Test the number of heating wires in the rear window of the car:

2) Linkage with PLC to judge the disconnect between heating wire and incense;

3) Automate and standardize the testing process to improve the testing efficiency.

 

 

The advantages of Yoseen infrared thermal camera for temperature analysis

1) The infrared thermal camera adopts non-contact temperature measurement, which is easy to operate and does not interfere with the original temperature field;

2) Infrared thermal camera has fast reaction speed, stable performance and clear imaging;

3) Equipped with supporting infrared analysis software, the obtained temperature data can be analyzed in detail and reports can be generated.