ZA767534B - Improvements in or relating to distance measuring apparatus - Google Patents

Improvements in or relating to distance measuring apparatus

Info

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
Application number
ZA767534A
Inventor
D Horrocks
B Smart
T Evans
Original Assignee
Univ Cardiff
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Cardiff filed Critical Univ Cardiff
Publication of ZA767534B publication Critical patent/ZA767534B/en

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
ZA767534A 1975-12-20 1976-12-20 Improvements in or relating to distance measuring apparatus ZA767534B (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE34838T1 (en) * 1980-03-20 1988-06-15 Acumet Precision Instr Ltd METHOD AND APPARATUS FOR DETERMINING PHYSICAL QUANTITIES, IN PARTICULAR LENGTH-RELATED QUANTITIES.
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
US5159835A (en) * 1986-10-29 1992-11-03 Westinghouse Electric Corp. Check valve testing system
US4977778A (en) * 1986-10-29 1990-12-18 Movats Incorporated Check valve testing system
US5154080A (en) * 1986-10-29 1992-10-13 Westinghouse Electric Corp. Integrated check valve testing system
WO1988003241A1 (en) * 1986-10-29 1988-05-05 Movats Incorporated 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

Also Published As

Publication number Publication date
AU1895476A (en) 1978-05-04
FR2335827B3 (en) 1979-07-13
FR2335827A1 (en) 1977-07-15
GB1525720A (en) 1978-09-20
AU504634B2 (en) 1979-10-18
DE2649049A1 (en) 1977-06-23

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