ETS-Lindgren HI-3603 VLF Survey Meter - Manual (Page 8)

HI-3603 VDT/VLF Survey Meter
© ETS-Lindgren, August, 2005
Revision E, Part # H-600042
8
contributions of S. M. Harvey at the Research Division of Ontario
Hydro (Canada) (Harvey, 1982; 1983a; 1983b; 1984a; 1984b;
1985), the HI-3603 VDT/VLF Radiation Measurement System
incorporates technology described in a report developed by A.
W. Guy, Director of the Bio-electromagnetics Research
Laboratory, Center for Bioengineering, at the University of
Washington for the National Institutes for Occupational Safety
and Health (NIOSH). This report (Guy, 1987), describes the
basic concepts upon which the Holaday HI-3603 was developed.
The HI-3603 is a single axis (responsive to one polarization
component at a time) field-strength meter designed to be
responsive to the complex (non- sinusoidal) electromagnetic
fields generated by VDT's over a broad frequency range. It
directly displays the root-mean-square (RMS) value of the
electric and magnetic field strengths on a LCD screen. Figure 1
illustrates the HI-3603 with its paddle-like sensor.
Figure 1:The HI-3603 VDT/VLF Radiation Survey Meter