APPARATUS FOR MEASURING DISPLACEMENT AMOUNT AND APPARATUS FOR MEASURING DISPLACEMENT AMOUNT OF DROP FORM IMPACT-TESTING APPARATUS - Director, Aerospace Research Institute, Science and Technology Agency

Title:

APPARATUS FOR MEASURING DISPLACEMENT AMOUNT AND APPARATUS FOR MEASURING DISPLACEMENT AMOUNT OF DROP FORM IMPACT-TESTING APPARATUS

Document Type and Number:

Japanese Patent JP3243524

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a displacement amount-measuring apparatus having a mobile body and an optical laser displacement gage for measuring a dynamic displacement of the mobile body which has a wide displacement range where a move amount of the mobile body can be measured and has a high measurement resolving power for a move distance (displacement amount) for every predetermined time of the mobile body.
SOLUTION: The apparatus has a mobile body, an inclined jig 1 set to the mobile body and having an inclined face U with a predetermined inclination in a move direction of the mobile body, an optical laser displacement gage 2 for measuring a distance to the inclined face U in accordance with a movement of the inclined jig 1 for every predetermined time, and an operation means 7 which calculates a difference of adjacent distances to the inclined face U for every predetermined time which are measured by the optical laser displacement gage 2 in accordance with a movement of the mobile body from one point to another point, multiplies each difference by a proportion coefficient corresponding to the predetermined inclination of the inclined face, and calculates a displacement amount for every predetermined time of the mobile body.

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Inventors:

Masakatsu Minegishi
Ikuo Kumakura

Application Number:

JP17694299A

Publication Date:

January 07, 2002

Filing Date:

June 23, 1999

Export Citation:

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Assignee:

Director, Aerospace Research Institute, Science and Technology Agency

International Classes:

G01B11/00; (IPC1-7): G01B11/00

Attorney, Agent or Firm:

Hidemori Matsukuma

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