This paper performs the modal analysis for HDD HGA,and the principle of resonance test for HGA with laser Doppler technique is presented.Based on this principle,a novel laser Doppler measurement system is formed to detect resonant characteristic of HGA.Used this system,the results of resonance test is obtained with three varieties HGA.The experiments prove that the system can effectively be used to measure resonant characteristic,which can arrive at a high accuracy.
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廖强华,钟健,王冬梅.应用激光多普勒技术测量HGA共振的研究[J].激光与红外,2008,38(8):768~770 LIAO Qiang- hua, ZHONG Jian, WANG Dong-mei. Research on the Resonance Test of HGA with Laser Doppler Technology[J]. LASER & INFRARED,2008,38(8):768~770