How infrared thermometer works
Infrared thermometer consists of optical system, photodetector, signal amplifier, signal processing and display output. The optical system converges the target infrared radiation energy within its...
Basic theory of infrared thermometer
Basic theory of infrared thermometer In 1672, it was discovered that the sunlight (white light) is composed of light of various colors. At the same time, Newton made the famous conclusion that...
China lock industry research
It is reported that due to the development of sound, light, machine, electricity and magnetism, the design of locks has also undergone great changes. By 1974, the United States had successfully...
High-end locks or locks mainstream
With the rapid development of pillar-type industries such as residential, automobiles, medium to high-end office buildings, and hotels, and the growing demand for highly protective lock products from...