Magnetic & Electric Field Meters for US Dept of Energy
Magnetic and Electric Field Meters Developed for the U.S. Department of Energy
Magnetic and Electric Field Meters
Office of Energy Storage and Distribution
United States Department of Energy
California Institute of Technology
" Prepared by the Jet Propulsion Laboratory, California Institute of Technology,
for the U.S. Department of Energy through an agreement with the National
Aeronautics and Space Administration. "
" This report was prepared as an account of work sponsored by an agency of the
United States Government. Neither the United States Government nor any agency
thereof, nor any of their employees, makes any warranty, express or implied, or
assumes any legal liability or responsibility for the accuracy, completeness,
or usefulness of any information, apparatus, product, or process disclosed, or
represents that its use would not infringe privately owned rights. "
" Reference herein to any specific commercial product, process, or service by
trade name, trademark, manufacturer, or otherwise, does not necessarily
constitute or imply its endorsement, recommendation, or favoring by the United
States Government or any agency thereof. "
" This publication reports on work performed under NASA Task RE-152, Amendment
203 and sponsored through DOE/NASA Interagency Agreement No. DE-AI01-79ET 29372
On the 3rd page, the ABSTRACT says:
" This report describes work done at the Jet Propulsion Laboratory for the Office
of Energy Storage and Distribution of the U.S. Department of Energy on the
measurement of power line fields. A magnetic field meter is discussed that
uses fiber optics to couple a small measuring probe to a remote readout device.
The use of fiber optics minimizes electric field perturbation due to the
presence of the probe and provides electrical isolation for the probe, so that
it could be used in a high field or high voltage environment. Power to operate
the sensor electronics is transferred via an optical fiber, and converted to
electrical form by a small photodiode array. The fundamental, the second and
third harmonics of the field are filtered and separately measured, as well as
the broadband rms level of the field. The design of the meter is described in
detail and data from laboratory tests are presented. The report also describes
work done to improve the performance of a dc electric field meter. Measurements
made of a high voltage dc bushing in a Swedish laboratory, using the improved
meter, are discussed. DC electric fields are measured with synchronous
detection to provide field magnitude data in two component directions. "
It is over 112 pages and has many diagrams, pictures, graphs, etc.
It looks like a manual that was copied to hand out to people with the need for the information.
The cover is a sturdy pressboard cardboard binder with the pages having two holes punched and held together with a sliding metal clasp.
The cover is in good condition with some minor wear and scratches.
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