CIRCUITS FOR CURRENT MEASUREMENTS
Patent
·
OSTI ID:4296295
Circuits are presented for measurement of a logarithmic scale of current flowing in a high impedance. In one form of the invention the disclosed circuit is in combination with an ionization chamber to measure lonization current. The particular circuit arrangement lncludes a vacuum tube having at least one grid, an ionization chamber connected in series with a high voltage source and the grid of the vacuum tube, and a d-c amplifier feedback circuit. As the ionization chamber current passes between the grid and cathode of the tube, the feedback circuit acts to stabilize the anode current, and the feedback voltage is a measure of the logaritbm of the ionization current.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-008393
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2859353
- OSTI ID:
- 4296295
- Country of Publication:
- United States
- Language:
- English
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