ZA767534B - Improvements in or relating to distance measuring apparatus - Google Patents
Improvements in or relating to distance measuring apparatusInfo
- Publication number
- ZA767534B ZA767534B ZA767534A ZA767534A ZA767534B ZA 767534 B ZA767534 B ZA 767534B ZA 767534 A ZA767534 A ZA 767534A ZA 767534 A ZA767534 A ZA 767534A ZA 767534 B ZA767534 B ZA 767534B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- measuring apparatus
- distance measuring
- distance
- measuring
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52259/75A GB1525720A (en) | 1975-12-20 | 1975-12-20 | Distance measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA767534B true ZA767534B (en) | 1977-11-30 |
Family
ID=10463225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA767534A ZA767534B (en) | 1975-12-20 | 1976-12-20 | Improvements in or relating to distance measuring apparatus |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU504634B2 (en) |
DE (1) | DE2649049A1 (en) |
FR (1) | FR2335827A1 (en) |
GB (1) | GB1525720A (en) |
ZA (1) | ZA767534B (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0037196B1 (en) * | 1980-03-20 | 1988-06-01 | Acumet Precision Instruments Ltd | Method and apparatus for determining physical quantities, particularly quantities related to length |
DE3031980A1 (en) * | 1980-08-25 | 1982-04-01 | Johannes 8000 München König | Hydraulic cylinder piston position measuring system - uses propagation time of ultrasonic pulses reflected from end face of piston |
DE3116333C2 (en) * | 1981-04-24 | 1984-01-12 | H. Kuhnke Gmbh Kg, 2427 Malente | Measuring system for the contactless detection of the positions of the piston rod of a piston-cylinder unit |
US4452074A (en) * | 1981-09-04 | 1984-06-05 | Shelomentsev Timofei I | Method of and apparatus for monitoring the performance of internal combustion engine mechanisms |
US4543649A (en) * | 1983-10-17 | 1985-09-24 | Teknar, Inc. | System for ultrasonically detecting the relative position of a moveable device |
IT1209599B (en) * | 1984-11-15 | 1989-08-30 | Siette Spa | LEVEL DETECTION SYSTEM FOR VEHICLES. |
GB2172995A (en) * | 1985-03-30 | 1986-10-01 | Emhart Ind | Monitoring the position of a member |
GB8612479D0 (en) * | 1986-05-22 | 1986-07-02 | Bell Fruit Mfg Co Ltd | Coin handling equipment |
US5154080A (en) * | 1986-10-29 | 1992-10-13 | Westinghouse Electric Corp. | Integrated check valve testing system |
EP0288521A4 (en) * | 1986-10-29 | 1991-09-11 | Movats Incorporated | Check valve testing system |
US4977778A (en) * | 1986-10-29 | 1990-12-18 | Movats Incorporated | Check valve testing system |
US5159835A (en) * | 1986-10-29 | 1992-11-03 | Westinghouse Electric Corp. | Check valve testing system |
EP0282774B1 (en) * | 1987-03-18 | 1994-01-05 | Combustion Engineering, Inc. | Ultrasonic check valve inspection |
DE3820883A1 (en) * | 1988-06-21 | 1989-12-28 | Hoelter Heinz | Apparatus and device for determining the piston stroke in hydraulic cylinders, with the aid of ultrasound |
US4938054A (en) * | 1989-05-03 | 1990-07-03 | Gilbarco Inc. | Ultrasonic linear meter sensor for positive displacement meter |
US5104144A (en) * | 1990-09-25 | 1992-04-14 | Monroe Auto Equipment Company | Shock absorber with sonar position sensor |
US5213472A (en) * | 1992-03-23 | 1993-05-25 | Bird-Johnson Company | Inboard servo for marine controllable pitch propellers |
DE4227657A1 (en) * | 1992-08-21 | 1994-02-24 | Hydac Technology Gmbh | Ultrasonic test facility for gas pressure accumulators |
DE4415420A1 (en) * | 1994-05-02 | 1995-11-09 | Horn Wolfgang | Acoustic ranging device esp. for helmet-mounted vision system |
CA2279567C (en) * | 1998-08-07 | 2003-10-21 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Position detector for fluid cylinder |
FR3044369B1 (en) * | 2015-12-01 | 2018-04-27 | Valeo Embrayages | SENSOR ASSEMBLY FOR HYDRAULIC CONTROL DEVICE |
CN105781546B (en) * | 2016-04-19 | 2018-01-23 | 太原理工大学 | A kind of wireless and passive Coal-Rock Interface Recognition device |
DE102017129445A1 (en) * | 2017-11-10 | 2019-05-16 | Grob-Werke Gmbh & Co. Kg | Method and device for determining the position of a piston of a hydraulic cylinder of a machine tool |
-
1975
- 1975-12-20 GB GB52259/75A patent/GB1525720A/en not_active Expired
-
1976
- 1976-10-25 AU AU18954/76A patent/AU504634B2/en not_active Expired
- 1976-10-28 DE DE19762649049 patent/DE2649049A1/en not_active Withdrawn
- 1976-10-29 FR FR7632721A patent/FR2335827A1/en active Granted
- 1976-12-20 ZA ZA767534A patent/ZA767534B/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2335827B3 (en) | 1979-07-13 |
DE2649049A1 (en) | 1977-06-23 |
GB1525720A (en) | 1978-09-20 |
AU1895476A (en) | 1978-05-04 |
FR2335827A1 (en) | 1977-07-15 |
AU504634B2 (en) | 1979-10-18 |
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