Pool monitor

Details Pool monitor Pool monitor

1992-10-20

1993-12-28

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Returned signal used for control

367112, 367131, G01S 1500

Patent

active

052746070

ABSTRACT:
The present invention shows a system for the continuous echo analysis of a body of liquid, surrounded by walls of known dimension, for the presence of an object. Such a system comprises:

REFERENCES:
patent: 4148012 (1979-04-01), Baump et al.
patent: 4380091 (1983-04-01), Lively
patent: 4932009 (1990-06-01), Lynch
patent: 5043705 (1991-08-01), Rooz et al.
patent: 5049859 (1991-09-01), Arnell

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