ETS-Lindgren FP5080 Isotropic Electric Field Probe (Archived) - Manual (Page 15)

Isotropic Electric Field Probe
© ETS-Lindgren, June, 2005
Revision F, Part # 600057 15
3. OPERATION
This section discusses the theory of operation and the functions
of the HI-4450/FP2080/FP4080/FP5080 Isotropic Electric Field
Probe. A high-level block diagram (Figure 3) is included to aid
the discussion. The objective is to provide information
enhancing user understanding of the design of this probe.
SYSTEM THEORY
The HI-4450/FP2080/FP4080/FP5080 Broadband Isotropic
Electric Field Probe utilizes a microprocessor for intelligent
operation and control. The probe's self-contained power supply
employs a 3.6 VDC NiCd battery, which provides up to 17 hours
of continuous operation.
For each axis, the probe measures the radio frequency signal
level and generates a linearized reading of the measurement. A
vector addition is performed on these three readings: the result is
transmitted to the readout over glass fiber optic cables. See
"Probe Operation" below for a more detailed explanation of the
functioning of the HI-4450/FP2080/FP4080/FP5080.
The probe relays data to the readout via either a short form or
long form output word. See Appendix B for details on both
output word formats.
For some applications, you may use any computer with an
RS232 serial port to communicated directly with the HI-
4450/FP2080/FP4080/FP5080 via ETS-Lindgren’s optional HI-
4413P Fiber Optic/RS232 Interface.
Archived 4/02/10