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广西省南宁市计量管理所研制成功的“SJY-1型便携式酸度计校验仪”最近通过技术鉴定。该装置可为理化计量人员在下厂下乡进行酸度计的现场调修和校验时复现标准 pH讯号和标准 mV 讯号。即便工作现场的温度及电源电压波动较大,该装置仍能完成0.02级以下酸度计的指示器刻度正确性、温度补偿器刻度正确性和仪器输入阻抗误差的校验工作。
Nanning, Guangxi Province, Metrology Management successfully developed “SJY-1 Portable Acidity Meter calibrator” recently passed the technical appraisal. The device for physical and chemical measurement personnel in the countryside next to the acidity field on-site repair and calibration of the standard pH signal and standard reproduce the standard mV signal. Even if the working site temperature and power supply voltage fluctuations larger, the device can still be completed 0.02 below the acidity meter indicator calibration accuracy, temperature compensator calibration accuracy and instrument input impedance error calibration work.