Inexpensive Temperature Feedback Controller for the Varian 63 CRA
- 1 November 1979
- journal article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 33 (6) , 613-616
- https://doi.org/10.1366/0003702794925039
Abstract
Construction details and the performance of a temperature feedback circuit added to the power suppy of a Varian model 63 furnace atomizer are discussed. The circuit incorporates a photo transistor temperature transducer and approximately $25 worth of readily available electronic components to implement both a variable temperature ramp rate and a variable maximum temperature function. The normal mode of operation can be selected if desired.Keywords
This publication has 3 references indexed in Scilit:
- Direct determination of trace metals in solid samples by atomic absorption spectrometry with electrothermal atomizers : Part 2. Determination of Lead in Steels and Nickel-base AlloysAnalytica Chimica Acta, 1979
- Determination of lead in rocks and glasses by temperature controlled graphite cup atomic absorption spectrometryAnalytical Chemistry, 1978
- Temperature controlled heating of the graphite tube atomizer in flameless atomic absorption spectrometryAnalytical Chemistry, 1974