What affects the measurement accuracy of infrared thermometer

 

With the development of modern science and technology, infrared thermometer with its accurate, fast, intuitive characteristics, widely used in various industries, real-time online monitoring and fault diagnosis equipment. In the past 20 years, the non-contact infrared thermometer has been developed rapidly in technology, its performance has been improved, its function has been enhanced, its varieties have been increasing, its scope of application has been expanding, and its market share has been increasing year by year. The technology of infrared thermometer plays an important role in product quality control and monitoring, on-line fault diagnosis and safety protection of equipment and energy saving. Infrared thermometer classification non-contact infrared thermometer is commonly divided into three series: portable, online and scanning type, with various options and computer software, each series has a variety of models and specifications. Shanghai Xuji launched a number of series of infrared thermometer, different models have their own characteristics, suitable for different fields.

Explanation of five factors affecting the measurement accuracy of infrared thermometer

1、 High temperature environment

In this environment, the coating material of infrared thermometer will melt, the solder joint will be civilized, and the stress distribution in the elastic body will be changed. In this environment, high temperature resistant infrared thermometer should be selected;

Heat insulation, water cooling or air cooling should be added.

2、 Corrupt environment

Infrared thermometer in the corrosive environment, easy to cause damage to the shell, resulting in damage to the inner elastomer, and even cause short circuit, so we should choose good anti-corruption performance and airtight

Infrared thermometer with good performance. The same is usually selected with a stainless steel cover or appearance that has been subjected to anti-corruption treatment penalties.

3、 Strong electromagnetic disturbance

The strong electromagnetic field environment will cause the infrared thermometer output signal distortion, the scope of turbulence is large, so it should be shielded until it has excellent anti electromagnetic disturbance ability.

4、 Five reasons affecting the measurement accuracy of the red line thermometer

In this kind of environment, the infrared thermometer with high tightness should be selected, otherwise the infrared thermometer will be short circuited. The corresponding products can be selected according to the IP protection grade of infrared thermometer.

Moreover, the infrared thermometer difference, its sealing method is also different, the airtightness must be very different. Common sealing methods are effective sealant filling or coating, rubber gasket machine fastening sealing, welding and vacuum filling nitrogen sealing. Among these sealing methods, welding sealing performance is good, followed by rubber gasket machine fastening seal, filling and coating sealant is poor. The infrared thermometer with glue sealing can be selected for the same places with less strict sealing requirements. For some things, in the humid and dusty environment, the infrared thermometer should be sealed by hot sleeve or welding, and the product of nitrogen filled vacuum sealing.

5、 Five reasons affecting the measurement accuracy of red line thermometer

If the infrared thermometer is not selected properly in flammable and explosive environment, it will be destroyed forever, and its output forbidden signal will give the control system wrong operation, and even threaten the equipment deployment and personal peace of other things. Therefore, in order to carefully select the infrared thermometer in this environment, the explosion-proof performance must be used. It is not only necessary to have airtight, but also to consider the explosion-proof strength. Its cable lead-out head must also meet such requirements.