Title :
A constant voltage source based on a mercury battery
Author :
Bergman, Anders ; Nilsson, Hakan
Author_Institution :
Swedish Nat. Testing & Res. Inst., Boras, Sweden
fDate :
4/1/1993 12:00:00 AM
Abstract :
The inherent stability and low impedance of a mercury cell are utilized in conjunction with an electronic active compensation circuit to obtain a load-independent reference voltage. The results obtained show that, for any load current up to 2 mA, the stability of the source is only slightly degraded as compared to the unloaded mercury cell. The drift observed is, however, linear and is of no consequence for the intended application where measurements are made in a symmetrical order to cancel out the influence of linear drift
Keywords :
compensation; mercury (metal); power supplies to apparatus; primary cells; stability; 2 mA; Hg battery; compensator; constant voltage source; electronic active compensation circuit; linear drift; load-independent reference voltage; stability; Batteries; Circuit noise; Circuit stability; Current supplies; Integrated circuit noise; Low-noise amplifiers; Noise reduction; Operational amplifiers; Resistors; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
