An oscillator circuit with a linear relation between frequency and temperature

Abstract

A simple instrument which measures point temperature in connection with the construction of thermal diffusion cloud-chamber and employs an oscillator circuit is designed and described. Bead thermistor is used as a temperature sensor. A new procedure is suggested for obtaining a linear functional relationship between temperature and frequency. Thermocouple is. used to calibrate the instrument. The method offers high accuracy and valid or wide range of temperature measurement.