The invention comprises an environmental sensor that measures a value of an environmental parameter of the ambient environment of the biometric measurement system.
本发明包括环境传感器，其测量生物统计测量系统的周围环境的环境参数值。
Real modal parameter identification has been used and 13 modes are identified. The obtained modes are compared with the results from steady exciting, ambient vibration and FEM calculation.
在识别中采用了实模态识别法，识别出前13个模态参数，并与稳态激振、环境振动及有限元计算进行了比较，结果是比较符合的。
Discovery after study, the electric parameter change reason is the dirt adhered at the producing on the surface of potentiometer inner basic chip absorbs wet in high thermal wet ambient.
经研究发现，电参数变化的原因是电位器内部基片表面在生产时附着的脏污在高热潮湿环境下吸潮造成。
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