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 設計了一種經濟的 fempto 安培靜電計, 供 oem 使用, 以支持通常使用更大更昂貴的靜電計的儀器。靜電計將接受 femptoamps 中的電流, 并將它們轉換為毫伏中的信號。
特征
小尺寸
靈敏度高: 1 fA
將適合 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 |