To ensure the measurement precision of the electric power fault recorder, this paper proposes a channel calibration approach based on the linear least square method.
为了保证电力故障录波器的测量精度，提出了一种基于线性最小二乘原理的录波器通道校正方法。
In order to ensure that temperature and humidity measurement precision, the hardware circuit error analysis, put forward the system error of the method to improve.
为了保证温湿度测量精度，对硬件电路进行了误差分析，并且提出了系统误差的改善方法。
The 3d motion parameter measurement of a rocket motor nozzle is a premiss for accurately controlling the nozzle, and the calibration equipment is the key to ensure motion testing at a high precision.
火箭发动机喷管三维运动参数的测试是对其精确控制的前提，其校准装置是保证测试精度的关键。
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