This paper introduces the sensors of temperature, humidity and pressure, applied in the laser interferometer for gauge block measurement with double wavelengths, describes the principle, design, uncertainty of measurement, as well as the method of calibration.
In this paper, the hardware structure and software flow for a portable optical power meter are described, and a method of calibration of this instrument and its measured performance are presented.
The system design, the method of calibration with reference film and the detection processing according to the detection project of engine rod's surface disfigurement are discussed.
The formation of infrared radiation human body thermometer and the method of calibration experiment are introduced.
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