Causes of Damage to Installation of Infrared Body Sensors and Its Protection
Most of the Infrared Body Sensors is inserted type, the Infrared Body Sensors in front of the insertion rod is its sensing end, once the damage will seriously affect the Infrared Body Sensors measurement accuracy. Therefore, the use of Infrared Body Sensorss will inevitably occur in the phenomenon of rupture, will directly affect the reliable safe operation. So the Infrared Body Sensors manufacturers to remind you to install must pay attention to the use of methods:
Through the investigation of the phenomenon of the sensor insertion rod rupture, find the cause of the Infrared Body Sensors insertion rod rupture mainly due to the following aspects: the Infrared Body Sensors insertion rod by high-speed fluid impact, load is too large, stress exceeds the limit The body of the infrared sensor into the rod of the processing defects, resulting in stress concentration, easy to cause the insertion rod break; pipe vibration is too large, resulting in Infrared Body Sensors inserted rod fatigue damage; fluid flow through the Infrared Body Sensors inserted rod, induced the body Infrared sensor insertion rod vibration, that is, the Infrared Body Sensors insertion rod natural frequency and fluid vortex shedding frequency resonance. This resonance phenomenon will lead to Infrared Body Sensors insertion rod damage speed, so that fracture.
How to protect the Infrared Body Sensors insertion rod is not damaged? Mainly from the following points to strictly control the insertion of the sensor insertion rod depth. As the insertion depth increases, the force to protect the insertion rod increases in square times. Therefore, we only need to measure the temperature when the Infrared Body Sensors into the rod into the isothermal area of the fluid, without having to insert the center point of the pipeline, which will help shorten the length of the thermometer pocket cantilever, to reduce the amplitude of its end effect. In order to ensure the necessary sensor insertion rod strength, optimize the selection of Infrared Body Sensors insertion rod diameter. Because when the diameter of the Infrared Body Sensors insertion rod increases, the table bag force increases linearly, so when selecting the diameter of the bag, it is necessary to reasonably guarantee the strength of the insertion rod, but also as far as possible to offset the resonance danger zone. Change the cross-sectional shape, the surface processed into a structural type, so that the fluid does not produce vortex shedding phenomenon. Strictly control the quality of maintenance, do a good job of sensor insertion rod material inspection, but also do a good job testing, to prevent welding cracks, cracks and other abnormal accidents. When the system is put into operation, avoid the sudden opening of the valve on the pipeline. In the moment when the valve is opened, the Infrared Body Sensors insertion rod will bear a great unidirectional force, so when the system is just put into operation, slowly open the valve, so that the system pressure gradually increased, as far as possible to reduce the Infrared Body Sensors Insert the bar on the front and back of the pressure difference, to avoid the insertion of the rod due to excessive force caused by the insertion rod break occurred.
The Infrared Body Sensors directly detects the temperature of the CPU internal die, and its precise temperature control. From here also see the Infrared Body Sensors in the computer an important role, the same more effective in our lives there are many, such as staircase walkway in the touch switch, rice cooker cooking to a certain temperature when the automatic power off insulation, Electronic balance can accurately measure the weight of the object, the electronic thermometer to measure the temperature of the human body, the phone touch screen more convenient operation, etc., the role of the sensor will be you can not imagine and people indispensable to modern life.