Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Report of the EMI Testing of the Johnson Noise Thermometry System

Technical Report ·
DOI:https://doi.org/10.2172/1256795· OSTI ID:1256795
 [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
This report summarizes the Electromagnetic Interference (EMI) testing of the Johnson Noise Thermometry System developed at ORNL. The EMI performance is very important for Johnson Noise Thermometry because it requires accurate measurement of a very small noise signal that is amplified 10,000 times. Any interference in the form on pickup from external signal sources from such as fluorescent lighting ballasts, motors, etc. can skew the measurement. Testing is therefore very important in determining the effects of these external noise sources. Results from testing in several environments with various sources of EMI are presented here.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1256795
Report Number(s):
ORNL/TM--2014/237; RC0113000; NERC014
Country of Publication:
United States
Language:
English

Similar Records

Innovative signal processing for Johnson Noise thermometry
Technical Report · Fri Jul 01 00:00:00 EDT 2016 · OSTI ID:1279444

A Novel Technique Applying Spectral Estimation to Johnson Noise Thermometry
Journal Article · Thu Mar 29 20:00:00 EDT 2018 · Nuclear Technology · OSTI ID:1435219

A Novel Technique Applying Spectral Estimation to Johnson Noise Thermometry
Conference · Sat Apr 01 00:00:00 EDT 2017 · OSTI ID:1356928