Low-level measurements of DC voltages using a SQUID
- 1 October 1976
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 9 (10) , 807-809
- https://doi.org/10.1088/0022-3735/9/10/004
Abstract
The input circuitry of a SQUID voltmeter system has been modified by using a shorted signal coil which acts as a low-pass filter with a cut-off frequency of less than 1 Hz. This enables the SQUID to be used under adverse noise conditions in order to measure voltages generated in an unscreened sample. The incorporation of a superconducting switch is also described which enables sample voltages to be isolated without changes in the applied conditions. The frequency response of the low-pass filter is measured in the magnetometer mode.Keywords
This publication has 2 references indexed in Scilit:
- Principles and methods of low-frequency electric and magnetic measurements using an rf-biased point-contact superconducting deviceJournal of Low Temperature Physics, 1972
- Thermal conduction in normal and superconducting tin and indiumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1961