H级K型热电偶的测温范围为400℃以上,其允许误差为()。...
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
热电阻是根据电阻值随温度变化的性质,将()的变化用仪表显示出来,达到测温目的的。A、温度B、被测量C、电阻值...
Saturday, September 17, 2022
DDZ-Ⅲ型差压变送器是一个变压器耦合的LC振荡器,其谐振回路在...
Tuesday, September 13, 2022
Saturday, September 17, 2022
仪表设备使用24VDC电源的电压,其电压范围不超过()。A、土1%;B、土3%;C、土5%;D、土l0%...
Sunday, August 6, 2023
安装汽包水位容器时,测量筒与汽包的连接管不要引得过长,过细或弯曲...
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
根据1968年国际实用温标的规定,基准铂电阻温度计的纯度R100/R0应不小于();工业用的纯度R100/R0应不小于()。...
Saturday, September 17, 2022
计算题:有一配热电偶的动圈式温度仪表,刻度盘上标有外线路电阻R<...
Saturday, September 17, 2022
当弹簧管式压力表的示值误差随示值的增大成比例增大时,通常可调整(...
Saturday, September 17, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Saturday, September 17, 2022
调节阀理想流量特性主要有(),(),()及()等四种。...
Thursday, March 16, 2023
Saturday, September 17, 2022
凡设计和制造符合国际GB/T2624-93标准的节流装置称为“标...
Tuesday, September 13, 2022