Multi-channel detection device suitable for transmitter and flow computer

The invention relates to the field of equipment detection and correction, in particular to a multi-channel detection device suitable for a transmitter and a flow computer. According to the invention, the change-over switch and the plurality of detection channels are arranged, so that a plurality of devices can be detected at one time, the detection efficiency is improved, and the use frequency of the standard device and the pressure pump is reduced; and through the combination of the current/voltage conversion circuit and the thermal resistance value conversion circuit, the detection of a pressure transmitter or a temperature transmitter which outputs standard current is integrated into one device, so that the universality of the device is effectively improved. 本发明涉及设备检测校正领域，特别是一种适用于变送器及流量计算机的多通道检测装置。本发明通过设置转换开关以及多个检测通道，从而实现一次检测多台设备，从而提高了检测效力，减少了标准器和压力泵的使用频次；并通过电流/电压转换电路和热阻值转换电路的组合，实现了在将以标准电流输出的压力变送器或温度变送器检测集成到一个设备，从而有效地增加了本发明的普适性。