Device for the Precise Measurement of Small Temperature Changes
- 1 June 1964
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 35 (6) , 729-732
- https://doi.org/10.1063/1.1746716
Abstract
A device capable of measuring temperature with a precision corresponding to a standard deviation of about 14 microdegrees at room temperature has been designed and constructed. The device employs a thermistor as the temperature‐sensing element in an ac bridge. The bridge imbalance, after being amplified, is detected by two phase‐sensitive detectors phase‐shifted 90° with respect to each other to insure that both the resistive and reactive components of the bridge elements are balanced.Keywords
This publication has 3 references indexed in Scilit:
- Resistance Thermometer Bridge for Measurement of Temperatures in the Liquid Helium RangeReview of Scientific Instruments, 1958
- Thermistor Thermometer Bridge: Linearity and Sensitivity for a Range of TemperatureReview of Scientific Instruments, 1957
- Thermistor Temperature ControlReview of Scientific Instruments, 1956