This ninth essay in a series on Sensorsmag.com. It is reproduced here with permission of SensorsMag a Questex Media Group, Inc. publication. The format has been slightly changed to make it easier to read online. This is the ninth essay in a series expanding on an article I wrote for Sensors titled "A Twelve-Step Sensor Selection Checklist". Sep 23, 2008 By: G. Raymond Peacock, … [Read more...]
Johnson Noise Thermometry
May 2, 2008 By
About 25 years ago, I first visited the Instrumentation Labs at Oak Ridge National Laboratories (ONRL) at the invitation of the late Bob Shepard. Bob was a pioneer in many areas of temperature measurement and at that time was the Chairman of ASTM Committee E20 on Temperature. He was also head of the lab at ORNL. He introduced me to Johnson Noise Temperature (JNT) measurement and showed me a … [Read more...]
