Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Low-level measurements of DC voltages using a SQUID
AU - Guénault, Tony
AU - Dee, R.H.
AU - Pickett, George
PY - 1976
Y1 - 1976
N2 - 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.
AB - 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.
U2 - 10.1088/0022-3735/9/10/004
DO - 10.1088/0022-3735/9/10/004
M3 - Journal article
VL - 9
SP - 807
EP - 809
JO - Journal of Physics E: Scientific Instruments
JF - Journal of Physics E: Scientific Instruments
SN - 0022-3735
IS - 10
ER -