Tyne has designed an economical fempto amp electrometer for use by OEMs to support instruments that normally use larger more expensive electrometers. The electrometer will accept currents in femptoamps and convert them to signals in millivolts.
Tyne 设计了一种经济的 fempto 安培静电计, 供 oem 使用, 以支持通常使用更大更昂贵的静电计的仪器。静电计将接受 femptoamps 中的电流, 并将它们转换为毫伏中的信号。
特征
小尺寸
灵敏度高: 1 fA
将适合 OEM 工具
低成本
Specifications
| Physical Size | 3 x 2.5 x 1/4 inches (76mm x 63.5mm x 19mm) |
| Signal Input Range | 1 to 15,000 fA (via BNC connector) |
| Signal Output | V(out) = 1×10^12 times the signal input Can measure to 1mV = 1fA of input current 15 VDC to +15 VDC With respect to the Common Lead |
| Weight | 120 grams |
| Power Input | Red and Black leads +/-15VDC, 4 mA |
| Common float | Common floats between +100VDC to -100VDC with respect to ground |
| Noise | +/- 2 mVDC |
| Drift | +/- 2 mVDC over 24 hours 2 mVDC/degree C |
| Current to Voltage Accuracy | |
| Op Amp output resistance | <3.0 ohms |
| Frequency response | up to 10 Hz |
| Settling time | 1 minute after first connection |
| Leakage current | < 1fA |
| Connections | BNC Input, flying leads power and output |
| Identification of Leads | Red – Power +/-15VDC Black – Power return White – Signal V(out) = 1×10^12 (in) Orange – common +100VDC to -100VDC BNC – signal in |
| Note: current input can float off of ground by +/- 100 VDC |