electrometer:静电计;电位计(广义)。用于测量电荷量或电势差(尤其是很小的电量/电势变化)的仪器。
The technician used an electrometer to measure the tiny charge on the sample.
技术员用静电计测量样品上极微小的电荷。
Because the signal was extremely weak, the experiment relied on a high‑impedance electrometer to detect subtle changes in potential.
由于信号极其微弱,实验依赖高输入阻抗的静电计来检测电势的细微变化。
/ɪˌlɛkˈtrɑːmɪtər/
该词由 **electro-**(“电的”,源自希腊语 ēlektron,原意与“琥珀”相关,因为古人观察到琥珀摩擦起电)+ -meter(“测量仪”,源自希腊语 metron,意为“尺度/测量”)构成,字面意思就是“测电的仪器”。