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Agronomy Journal Abstract -

A Simple Method to Calibrate an Infrared Thermometer1

 

This article in AJ

  1. Vol. 74 No. 6, p. 1096-1098
     
    Received: Mar 5, 1982


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doi:10.2134/agronj1982.00021962007400060041x
  1. E. J. Sadler and
  2. C. H. M. van Bavel2

Abstract

Abstract

An infrared thermometer (IRT) was calibrated by simultaneously measuring the temperature of a black cavity with the IRT and with fine thermocouples, while the cavity was being heated from 5 to 50 C, over a 2-hour period. Both temperatures were recorded on cassette tape by a microprocessor-based data collector, transferred to computer disk storage, and used to determine the calibration equation. The entire procedure required about 4 hours from setup to completion, including production of a graph of the equation and the results.

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