失真度仪检定仪检定装置

失真度仪检定装置是用来检定失真度测量仪的最常用仪器，为了统一全省失真度仪检定装置的量值，确保失真度的量值准确可靠，特建立此计量标准。

工作原理：本套装置是采取分项直接测量方法，对失真度检定装置进行分项检定，具体原理见下图所示。环境条件要求：

温 度 (20±5)℃

湿 度 (60±15)% RH

电源电压 （220±22）V

电源频率 （50±2）Hz

失真度标准装置1995年建立至今，重复性、稳定性均符合要求，运行良好。

The distortion meter verification device is the most commonly used instrument for calibrating distortion measuring instruments. This metrological standard was specially established to unify the quantity values of distortion meter verification devices across the entire province and ensure the accuracy and reliability of distortion quantity values.

Working Principle: This set of equipment adopts the sub-item direct measurement method to conduct sub-item verification on the distortion meter verification device, and the specific principle is shown in the figure below.

Environmental Requirements:
Temperature: (20±5)℃
Humidity: (60±15)% RH
Power Supply Voltage: (220±22) V
Power Supply Frequency: (50±2) Hz

Since its establishment in 1995, the distortion meter standard device has met the requirements in terms of repeatability and stability, and has been operating well.