Department of Navigation Systems

Our engineering team has developed a precision instrument for measurement of very low electrical currents - the ELV-1 Electrometer Amplifier to cover the range of currents from as little as 1 pA up to 200 uA.

• Metrology
• Photometry and optical radiometry
• Laser beam power measurement
• Semiconductor research
• Ionization detection
• Mass spectroscopy

The instrument consists of two main functional modules: of a current-to-voltage converter module, and of a digital voltmeter (DVM) module. While the DVM displays the measurement value on a 4.5 digit front panel display, the analog voltage itself from the converter is also available for output.

The ELV-1 provides excellent dynamic range throughout the wide scale of input currents due to the low input noise level (1 microvolt) - from 1 picoamper to 200 microampers, divided into five sub-ranges. The input circuitry is isolated from both the AC power grid and the ground potential, eliminating unwanted noise paths.

The instrument is applicable as a photodiode transimpedance amplifier for measurement of low currents produced by photoelectric sensors, as well as other similar sensors and circuits. For detailed technical information, please review the ELV-1 Specifications page.

© 2001 Cybernetica. Last updated 2001-08-28