Communications: electrical – Vehicle detectors – Inductive
Patent
1985-08-23
1987-04-28
Rowland, James L.
Communications: electrical
Vehicle detectors
Inductive
340933, 340991, G08C 100
Patent
active
046617990
ABSTRACT:
An inductive loop detector which includes a detector which is coupled to the loop by means of a parallel tuned circuit and a receiver which is coupled to the loop by means of a parallel tuned circuit, with the two tuned circuits having different resonant frequencies.
REFERENCES:
patent: 3891980 (1975-06-01), Lewis et al.
patent: 3996555 (1976-12-01), Dow
Electromatic (Proprietary) Limited
Rittmaster T.
Rowland James L.
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