Sonic distance-measuring device

Details Sonic distance-measuring device Sonic distance-measuring device

1987-08-28

1990-08-28

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367 99, G01S 1500

Patent

active

049531417

ABSTRACT:
A sonic distance-measuring device (10) for use in air includes three transducers (14, 16, and 18) in an array of transducers, which are driven in a predetermined phase relationship so as to achieve a beam width that is substantially less than that which can be achieved by any of the transducers individually. To enable the user to aim the device (10) effectively, a lamp (20) is provided to shine along the sonic beam and thus help the user direct the beam at a desired target. To conserve energy and increase the ability to distinguish the light beam from ambient light, the lamp (20) is pulsed rather than driven steadily.

REFERENCES:
patent: 3465337 (1969-09-01), Tanaka et al.
patent: 3916373 (1975-10-01), Schroder
patent: 4267584 (1981-05-01), McKeighen et al.
patent: 4398420 (1983-08-01), Haesen et al.
patent: 4400976 (1983-08-01), Blades
patent: 4439846 (1984-03-01), Rodriguez
patent: 4464738 (1984-08-01), Czajkowski
patent: 4574368 (1986-03-01), Lipschutz
patent: 4717862 (1988-01-01), Anderson
patent: 4731762 (1988-03-01), Hanks
Motorola Optoelectronic Device Data, 1983, pp. 442-443.
Circular: Sonic Tape.
Circular: "Mach 5", Distance-Meter.
Circular: Sonarange.
Circular: Keson "CalcuTape".
Circular: EMS FT4100.
Circular: Measure Mate.
Circular: Exact Distance-Measuring Computer.
Instruction Manual: Sonic Tape.
Instruction Manual: Echo-Tape.
Instruction Manual: Sonic Ranger Model SR-35A.

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