Title:
RADAR EQUIPMENT AND CONTROLLING METHOD OF STOP POSITION THEREOF
Document Type and Number:
Japanese Patent JP3162225
Kind Code:
B2
Abstract:
PURPOSE: To simplify a construction for positioning an antenna by lessening the number of revolutions of a motor when a matching signal is in a prescribed number (n) and by stopping the motor when the signal is in a prescribed number N being larger than the prescribed number (n).
CONSTITUTION: A matching detecting means 10 outputs a matching signal every time when it detects that a rotational position signal from a rotational angle detecting means 4 shows a set stop angle. When a counting means 6 counts the first matching signal after a stop instruction is given, the speed of a motor 2 set by a revolution number setting means 51 is changed by an output of the counting means 6. Thereby the speed of rotation of the motor 2 is made low and the motor 2 becomes easy to stop. When the counting means 6 counts the second matching signal subsequently, a power supply of the motor 2 is interrupted by a switch 31 on the basis of the output of the counting means 6, while the opposite ends of the motor 2 are short-circuited by a switch 32, and the motor 2 stops.
Inventors:
Genji Hozumi
Application Number:
JP9101793A
Publication Date:
April 25, 2001
Filing Date:
April 19, 1993
Export Citation:
Assignee:
Icom Co., Ltd.
International Classes:
G01S7/03; H01Q3/04; (IPC1-7): G01S7/03
Domestic Patent References:
| JP61295885A | ||||
| JP63302781A | ||||
| JP2197277A | ||||
| JP2231975A | ||||
| JP356213U | ||||
| JP2133684U | ||||
| JP5972889U |
Attorney, Agent or Firm:
Toyoaki Fukui