Real-Time Liquid Evaporation Rate Measurement Based on a Microchip Laser Feedback Interferometer
TAN Yi-Dong1, ZHANG Song1, REN Zhou1, ZHANG Yong-Qin2, ZHANG Shu-Lian1**
1State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084 2School of Mechanical Engineering, Nantong University, Nantong 226019
Abstract：We present a novel scheme to realize the direct real-time measurement of liquid evaporation rate and nanometer order liquid level monitoring. It is based on the phase measurement technology of Nd:YAG microchip laser frequency-shifted feedback, which not only has a high resolution and precision but also ultrahigh sensitivity. The evaporation rates of four different transparent liquids and hot water are measured. Experimental results indicate the ease and convenience of measuring and present promising application prospects in non-cooperative target measurement.
2013, Vol. 30 
