Document Type and Number:
Japanese Patent JPS5652265
Kind Code:
B2
Abstract:
1517591 Ultrasonic detection devices; ultrasonic radars FURUNO ELECTRIC CO Ltd 8 Jan 1976 [30 Jan 1975] 00682/76 Heading G1G An ultrasonic detection system is embodied as a directional receiving system with a ring of thirty transducers A 1 - 30 from which contiguous groups of six (e.g. A 2 - 7 ) are successively switched by 10 switch circuits (S 1 - 10 , Figs. 3A1, 3A2, not shown) to delay circuits (D 1 - 10 ) to form an effectively rotating parallel beam reception direction. The gated output from a particular direction such as O 2 corresponding to A 2 - 7 modulates a synchronized rotating spot on a CRT Figs. 3B, 3C (not shown) whose radius represents range. The array of Fig. 1 may also be used as an omnidirec- tional transmitter, or a separate omnidirectional transmitter transducer may be installed.
Application Number:
JP1308475A
Publication Date:
December 10, 1981
Filing Date:
January 30, 1975
Export Citation:
International Classes:
G01S7/523; G01S7/526; G01S15/89