Title:
【発明の名称】レーザドップラ法を利用した搬送中における直方体の物品の進入角度と側辺の実長の測定法とその装置
Document Type and Number:
Japanese Patent JP2822010
Kind Code:
B2
Abstract:
PURPOSE: To provide a measuring method and apparatus which enable measuring of an angle of approach and a true length of the side of an object when the object is conveyed in the direction of a belt conveyor moves with the angle of approach. CONSTITUTION: In the process in which an object 2 as rectangular parallelopiped is conveyed on a belt conveyor 1, a laser Doppler spied sensor 3 is set at a specified height and a means is provided to irradiate the surface of the belt conveyor 1 with a laser beam while two object position detection sensors 5A and 5B at the right angle to the direction of the belt conveyor 1 moves to detect a timing at which the front and rear ends of the object passes with one thereof. At the same time, a deviation in time is detected depending on an angle of approach when the front edge approaches with the object position detection sensors 5A and 5B. Both the results are inputted into a signal processor 4 as timing signal thereby enabling measuring of the angle of approach and an actual length of the side of the object by computation.
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Inventors:
Shunichiro Hinata
Application Number:
JP11269795A
Publication Date:
November 05, 1998
Filing Date:
April 14, 1995
Export Citation:
Assignee:
Minato Electronics Co., Ltd.
International Classes:
G01B11/04; G01B11/26; G01S7/48; G01S17/58; (IPC1-7): G01B11/26; G01B11/04; G01S7/48; G01S17/58
Domestic Patent References:
| JP62240805A | ||||
| JP5465057A |
Attorney, Agent or Firm:
Shinnosuke Tsunoda