A Fast and Sensitive Bolometer and Galvanometer System for an Infra-Red Spectrometer
- 1 December 1943
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 14 (12) , 356-359
- https://doi.org/10.1063/1.1770102
Abstract
This bolometer and associated equipment, designed for use with a high speed recording infra‐red spectrophotometer, respond in two‐tenths of a second to 6×10−8 watt of radiation from a slit. Amplification of the Brownian limit of the Moll microgalvanometer in the presence of difficult vibrations is achieved by mounting the galvanometer, photo‐cells, and preamplifier on a novel support employing a large compression spring. The bolometer and amplifying system described were developed for use with an f4 rocksalt infra‐red spectrophotometer. In order to show the spectrum on the screen of a long‐persistence (one minute) oscilloscope, unusually rapid response was desired, even at the expense of some sensitivity.Keywords
This publication has 1 reference indexed in Scilit:
- Construction and Test of an Alternating-Current BolometerReview of Scientific Instruments, 1935