Title:
PROTRUSION PASSAGE DETECTION DEVICE AND METHOD
Document Type and Number:
Japanese Patent JP2017173146
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a protrusion passage detection device and a method capable of certainly and easily detecting passage of a protrusion to generate a timing signal.SOLUTION: A protrusion passage detection device includes a plurality of non-contact sensors 10 (10A, 10B) and a signal generator 30. The plurality of non-contact sensors 10 detect passage of a protrusion 2 in a non-contact fashion to output a plurality of detection signals E (E1, E2) at a plurality of detection positions X (X1, X2) outside of the protrusion 2. The plurality of non-contact sensors are set such that a detection interval L(L1) of the plurality of detection positions X in a circumferential direction and a detection distance H in a radial direction from the detection positions X to a tip of the protrusion 2 can detect part of the tip of the same protrusion 2. The signal generator 30 generates a timing signal F from an intersection C of the plurality of detection signals E.SELECTED DRAWING: Figure 7
Inventors:
KIM CHIXUAN
ISHIKAWA HIKARI
ISHIKAWA HIKARI
Application Number:
JP2016059935A
Publication Date:
September 28, 2017
Filing Date:
March 24, 2016
Export Citation:
Assignee:
IHI CORP
International Classes:
G01H9/00
Domestic Patent References:
| JP2000321122A | 2000-11-24 | |||
| JP2001280917A | 2001-10-10 | |||
| JP2014137018A | 2014-07-28 | |||
| JPS6444406U | 1989-03-16 |
Foreign References:
| US20120112769A1 | 2012-05-10 | |||
| US20100188104A1 | 2010-07-29 | |||
| CN103471703A | 2013-12-25 |
Attorney, Agent or Firm:
Minoru Hotta
Toshihiro Nomura
Toshihiro Nomura