GB2273983A - Ultrasonic measurement apparatus - Google Patents
Ultrasonic measurement apparatusInfo
- Publication number
- GB2273983A GB2273983A GB9322859A GB9322859A GB2273983A GB 2273983 A GB2273983 A GB 2273983A GB 9322859 A GB9322859 A GB 9322859A GB 9322859 A GB9322859 A GB 9322859A GB 2273983 A GB2273983 A GB 2273983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmission
- signal
- transmitted
- bolt
- reflection
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
- G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/12—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02827—Elastic parameters, strength or force
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
An apparatus for measuring the time taken for a signal to be transmitted through a medium such as a bolt. An ultrasonic signal is transmitted into the bolt and reflections of the transmitted signal are detected after transmission through the bolt. After a first transmission is initiated, each of a series of further transmissions is initiated in response to detection of a second reflection of the transmitted signal resulting from the preceding transmission. The total elapsed time between initiation of the first transmission and detection of the second reflection of the transmitted signal resulting from the last transmission is measured, and the sum of time delays elapsing between initiation of each signal and detection of a first reflection of the resulting transmitted signal is measured. The time taken for transmission of the signal through the bolt is calculated from the difference between the total elapsed time and said sum. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919109552A GB9109552D0 (en) | 1991-05-02 | 1991-05-02 | Ultrasonic measurement apparatus |
PCT/GB1992/000807 WO1992019983A1 (en) | 1991-05-02 | 1992-05-01 | Ultrasonic measurement apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9322859D0 GB9322859D0 (en) | 1994-05-04 |
GB2273983A true GB2273983A (en) | 1994-07-06 |
GB2273983B GB2273983B (en) | 1994-11-30 |
Family
ID=10694368
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB919109552A Pending GB9109552D0 (en) | 1991-05-02 | 1991-05-02 | Ultrasonic measurement apparatus |
GB9322859A Expired - Fee Related GB2273983B (en) | 1991-05-02 | 1992-05-01 | Ultrasonic measurement apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB919109552A Pending GB9109552D0 (en) | 1991-05-02 | 1991-05-02 | Ultrasonic measurement apparatus |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1667392A (en) |
GB (2) | GB9109552D0 (en) |
WO (1) | WO1992019983A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4335728C2 (en) * | 1993-10-20 | 2002-11-14 | Bosch Gmbh Robert | Method and device for ultrasonic distance measurement |
SE507466C2 (en) * | 1995-09-22 | 1998-06-08 | Atlas Copco Controls Ab | Method for determining the axial force of an elongated body |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4846001A (en) * | 1987-09-11 | 1989-07-11 | Sps Technologies, Inc. | Ultrasonic load indicating member |
EP0384977A2 (en) * | 1989-02-25 | 1990-09-05 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Apparatus for measuring propagation time of ultrasounds |
-
1991
- 1991-05-02 GB GB919109552A patent/GB9109552D0/en active Pending
-
1992
- 1992-05-01 WO PCT/GB1992/000807 patent/WO1992019983A1/en active Application Filing
- 1992-05-01 AU AU16673/92A patent/AU1667392A/en not_active Abandoned
- 1992-05-01 GB GB9322859A patent/GB2273983B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4846001A (en) * | 1987-09-11 | 1989-07-11 | Sps Technologies, Inc. | Ultrasonic load indicating member |
EP0384977A2 (en) * | 1989-02-25 | 1990-09-05 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Apparatus for measuring propagation time of ultrasounds |
Non-Patent Citations (3)
Title |
---|
JOURNAL OF TESTING AND EVALUATION vol 14 no5 Sept 1986 PHILADELPHIA US pages 253-259 * |
MECANIQUE MARERIAUX ELECTRICITE vol400 June 1983 PARIS Fr pages 29-33 * |
SOVIET JOURNAL OF NONDESTRUCTIVE TESTING vol16,no12 dec1980 NEW YORK US pages 910-924 * |
Also Published As
Publication number | Publication date |
---|---|
WO1992019983A1 (en) | 1992-11-12 |
AU1667392A (en) | 1992-12-21 |
GB9109552D0 (en) | 1991-06-26 |
GB2273983B (en) | 1994-11-30 |
GB9322859D0 (en) | 1994-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19980501 |