IT1230814B - Fibre-optic vibration sensor for shock testing - Google Patents
Fibre-optic vibration sensor for shock testingInfo
- Publication number
- IT1230814B IT1230814B IT8809468A IT946888A IT1230814B IT 1230814 B IT1230814 B IT 1230814B IT 8809468 A IT8809468 A IT 8809468A IT 946888 A IT946888 A IT 946888A IT 1230814 B IT1230814 B IT 1230814B
- Authority
- IT
- Italy
- Prior art keywords
- sheet
- fibre
- vibration sensor
- shock testing
- optic vibration
- Prior art date
Links
- 230000035939 shock Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The sensor comprises a vibrating sheet (1), mechanically connected to the body (5A) to be analysed, and an optical triangulation recording system for recording the displacements of the movable part of the sheet, in particular the free end (1B) opposite two optical fibres (7, 9) ending in microlenses (10, 12) having optical axes mutually inclined and converging in the movable part (1B) of the sheet. The choice of lenses 10, 12 of the GRIN-rod type (graded index lens) is dictated by requirements of compactness and of convenience of application to the fibres, but is obviously not binding as regard the operation of the sensor.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8809468A IT1230814B (en) | 1988-08-12 | 1988-08-12 | Fibre-optic vibration sensor for shock testing |
DE68915486T DE68915486D1 (en) | 1988-08-12 | 1989-07-25 | Fiber optic vibration sensor. |
AT89830343T ATE106138T1 (en) | 1988-08-12 | 1989-07-25 | FIBEROPTIC VIBRATION SENSOR. |
ES89830343T ES2052963T3 (en) | 1988-08-12 | 1989-07-25 | FIBER OPTIC VIBRATION SENSOR. |
EP89830343A EP0354882B1 (en) | 1988-08-12 | 1989-07-25 | Fiber-optic vibration sensor |
US07/389,189 US5063781A (en) | 1988-08-12 | 1989-08-03 | Fiber-optic vibration sensor |
JP1207045A JPH0277626A (en) | 1988-08-12 | 1989-08-11 | Fiber optical vibration sensor |
US07/739,134 US5207766A (en) | 1988-08-12 | 1991-07-31 | Fiber-optic vibration sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8809468A IT1230814B (en) | 1988-08-12 | 1988-08-12 | Fibre-optic vibration sensor for shock testing |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8809468A0 IT8809468A0 (en) | 1988-08-12 |
IT1230814B true IT1230814B (en) | 1991-11-07 |
Family
ID=11130599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8809468A IT1230814B (en) | 1988-08-12 | 1988-08-12 | Fibre-optic vibration sensor for shock testing |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1230814B (en) |
-
1988
- 1988-08-12 IT IT8809468A patent/IT1230814B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8809468A0 (en) | 1988-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19980828 |