JPS55146046A - Measuring method of golf ball spin amount - Google Patents
Measuring method of golf ball spin amountInfo
- Publication number
- JPS55146046A JPS55146046A JP5430979A JP5430979A JPS55146046A JP S55146046 A JPS55146046 A JP S55146046A JP 5430979 A JP5430979 A JP 5430979A JP 5430979 A JP5430979 A JP 5430979A JP S55146046 A JPS55146046 A JP S55146046A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- plane
- spin amount
- marks
- golf ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
Abstract
PURPOSE: To measure the ball spin amount instantly with non-contact, by commonly providing the light projection and photo detection planes under the space through which a ball passes.
CONSTITUTION: The light projection plane 4 and the photo detection plane 5 of optical fiber are provided beneath the space through which the ball 10 passes, the reflection marks 1, 2 are stuck on the circle having back spin for the ball with a given angle θ, and light is projected on the marks 1, 2 via the plane 4 from the lamp 6 with the passage of the ball 10, and the reflected light is detected with the photo detector 7 via the plane 5. Further, the time interval t is obtained from the both detection signals with the marks 1 and 2 and the spin amount S is calculated from the equation of S=(60×θ)/(t×360) rpm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430979A JPS6021349B2 (en) | 1979-05-01 | 1979-05-01 | Golf ball spin amount measurement method and spin amount measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430979A JPS6021349B2 (en) | 1979-05-01 | 1979-05-01 | Golf ball spin amount measurement method and spin amount measurement device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55146046A true JPS55146046A (en) | 1980-11-14 |
JPS6021349B2 JPS6021349B2 (en) | 1985-05-27 |
Family
ID=12966966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5430979A Expired JPS6021349B2 (en) | 1979-05-01 | 1979-05-01 | Golf ball spin amount measurement method and spin amount measurement device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6021349B2 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5849162A (en) * | 1981-09-17 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5849163A (en) * | 1981-09-17 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5849165A (en) * | 1981-09-18 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5850975A (en) * | 1981-09-21 | 1983-03-25 | 三菱電機株式会社 | Golf excerciser |
JPS5854842A (en) * | 1981-09-28 | 1983-03-31 | 株式会社東芝 | Generator regulator for electronic vehicle |
JPS5854971A (en) * | 1981-09-28 | 1983-04-01 | 三菱電機株式会社 | Golf exerciser |
JPS62164077U (en) * | 1987-03-18 | 1987-10-19 | ||
WO1992008526A1 (en) * | 1990-11-14 | 1992-05-29 | Curchod Donald B | Golf hole simulation system and assembly |
US5226660A (en) * | 1989-05-25 | 1993-07-13 | Curchod Donald B | Golf simulator apparatus |
US5481355A (en) * | 1992-08-06 | 1996-01-02 | Yamaha Corporation | Flying spherical body measuring apparatus |
WO1998018010A1 (en) * | 1996-10-19 | 1998-04-30 | Norman Matheson Lindsay | Apparatus for measuring parameters relating to the trajectory and/or motion of a moving article |
US5798833A (en) * | 1995-06-19 | 1998-08-25 | Sumitomo Rubber Industries, Ltd. | Rotation speed measuring machine for flying globe |
US6887162B2 (en) | 1996-10-19 | 2005-05-03 | Norman Matheson Lindsay | Apparatus for measuring parameters relating to the trajectory and/or motion of a moving article |
-
1979
- 1979-05-01 JP JP5430979A patent/JPS6021349B2/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5849162A (en) * | 1981-09-17 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5849163A (en) * | 1981-09-17 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5849165A (en) * | 1981-09-18 | 1983-03-23 | 三菱電機株式会社 | Golf excerciser |
JPS5850975A (en) * | 1981-09-21 | 1983-03-25 | 三菱電機株式会社 | Golf excerciser |
JPS5854842A (en) * | 1981-09-28 | 1983-03-31 | 株式会社東芝 | Generator regulator for electronic vehicle |
JPS5854971A (en) * | 1981-09-28 | 1983-04-01 | 三菱電機株式会社 | Golf exerciser |
JPS62164077U (en) * | 1987-03-18 | 1987-10-19 | ||
US5226660A (en) * | 1989-05-25 | 1993-07-13 | Curchod Donald B | Golf simulator apparatus |
WO1992008526A1 (en) * | 1990-11-14 | 1992-05-29 | Curchod Donald B | Golf hole simulation system and assembly |
US5481355A (en) * | 1992-08-06 | 1996-01-02 | Yamaha Corporation | Flying spherical body measuring apparatus |
US5798833A (en) * | 1995-06-19 | 1998-08-25 | Sumitomo Rubber Industries, Ltd. | Rotation speed measuring machine for flying globe |
WO1998018010A1 (en) * | 1996-10-19 | 1998-04-30 | Norman Matheson Lindsay | Apparatus for measuring parameters relating to the trajectory and/or motion of a moving article |
US6887162B2 (en) | 1996-10-19 | 2005-05-03 | Norman Matheson Lindsay | Apparatus for measuring parameters relating to the trajectory and/or motion of a moving article |
Also Published As
Publication number | Publication date |
---|---|
JPS6021349B2 (en) | 1985-05-27 |
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