电流/电压传感器
AST电流传感器采用间接电流测量原理,利用AST专项研发的3D霍尔ASIC技术。这项技术可以对导体中电流引起的磁场进行高精度测量。此项测量方法尤其对于大电流(> 500A)优势明显,因为相比分流系统,测量元件不会产生额外的功率损失。载流导体的外形在安装空间和测量要求上可以调整的范围很广。完全电离情况下,通过磁性原理来进行电流测量。电压测量同样也在电离情况下进行。电离是通过绝缘数字接口来实现。这种接口取样率高,从而能够可靠记录动态信号。电流/电压传感器主要用于电池动力和燃料电池汽车传动系的动力系统,以及相应的非车载充电设施。这类传感器也有可调节版。传感器根据具体的用途,其电流测量范围可达2500A,从而满足未来快速充电桩的需求。
DC METER (compliant with calibration law)

Based on the AST owned 3D-Hall ASIC technology the challenging task for a continuous measurement of 1.000A and 1.000V is ensured. This high measuring range qualifies our DC Meter especially for the use in fast and ultra charging stations as well as Megawatt chargers for buses and trucks.
The AST DC Meter is compliant with the German Eichrecht (MessEG and MessEV) and MID approved. Even with a permanent load of 1.000A and 1.000V the AST DC Meter meets the required measurement accuracy of class 1 regulated in the IEC 62053-41:2021.
In order to take future trends in the charging infrastructure into account at an early stage, the DC Meter is already designed for bi-directional charging processes.
The DC Meter is available in two design variants – as a compact measuring unit with integrated display or as a version with a remote display and greater flexibility in complex installation situations.