Multimode electrometer for atmospheric ion measurements
Multimode electrometer for atmospheric ion measurements
复制标题
用于大气离子测量的多模式静电计
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
K. Aplin
中科院分区：
文献类型：
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作者：
R. Harrison;K. Aplin
研制了一种计算机控制的静电计，它既能测量高阻抗电压，又能测量毫微微安培电流。预期在大气温度下与Gerdien离子计数器配合使用。温度变化会导致失调电压和偏置电流变化引起的显著热误差，从而影响测量结果。使用高阻抗开关允许测量静电计的失调电压和输入偏置电流，并允许在两种模式下应用常规软件补偿。
A computer-controlled electrometer capable of either high impedance voltage measurements or femtoampere current measurements has been developed. It is intended for use with a Gerdien ion counter in atmospheric temperatures. Temperature variations can cause significant thermal errors arising from offset voltage and bias current changes that compromise the measurements. Use of high impedance switching permits the offset voltage and input bias currents of the electrometer to be measured, and allows regular software compensations to be applied in both modes.