IL70357A0 - Process and apparatus for testing the authenticity of noble metal articles - Google Patents
Process and apparatus for testing the authenticity of noble metal articlesInfo
- Publication number
- IL70357A0 IL70357A0 IL70357A IL7035783A IL70357A0 IL 70357 A0 IL70357 A0 IL 70357A0 IL 70357 A IL70357 A IL 70357A IL 7035783 A IL7035783 A IL 7035783A IL 70357 A0 IL70357 A0 IL 70357A0
- Authority
- IL
- Israel
- Prior art keywords
- noble metal
- testing
- moulding
- authenticity
- metal articles
- Prior art date
Links
Classifications
-
- 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
- G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
-
- 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)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
1. An apparatus for testing the purity of noble metal mouldings, more especially noble metal bars and noble metal discs, by imparting transverse vibrations to the noble metal moulding using a vibration generator and measuring the resonance frequency by means of a vibration pickup, characterized in that the vibration generator (10) and the vibration pickup (11) are formed by piezo-electric transducers and are directly coupled to the moulding (1) to be tested and in that one or more supports (2) are present for the moulding (1) to be tested.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3244717 | 1982-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
IL70357A0 true IL70357A0 (en) | 1984-03-30 |
Family
ID=6179689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL70357A IL70357A0 (en) | 1982-12-03 | 1983-12-01 | Process and apparatus for testing the authenticity of noble metal articles |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0113031B1 (en) |
JP (1) | JPS59150338A (en) |
AT (1) | ATE34232T1 (en) |
DE (1) | DE3376586D1 (en) |
HK (1) | HK62590A (en) |
IL (1) | IL70357A0 (en) |
ZA (1) | ZA838869B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4304170C2 (en) * | 1993-02-12 | 1995-10-19 | Isad Ingenieurbuero Gmbh Fuer | Method and device for recognizing surface structures |
DE19908620C1 (en) * | 1999-02-27 | 2000-11-30 | Degussa | Device and method for checking the authenticity of shaped metal articles |
GB2512289B (en) * | 2013-03-22 | 2018-12-26 | Ross Nedwell Jeremy | A device for determining the characteristic impedance spectrum of a token |
FR3007141A1 (en) * | 2013-06-18 | 2014-12-19 | Jacques Clausin | DEVICE FOR CONTROLLING THE METALLURGICAL PURITY OF GOLD OBJECTS, ESPECIALLY INGOTS AND BARS |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT200364B (en) * | 1957-03-06 | 1958-10-25 | Horst Dipl Ing Kottas | Device for measuring the resonance frequencies of test specimens |
GB1011472A (en) * | 1962-10-17 | 1965-12-01 | British Cast Iron Res Ass | Improvements in the non-destructive testing of materials |
CH553456A (en) * | 1973-04-19 | 1974-08-30 | Kuniaki Miyazawa | COIN VALIDATOR. |
DE2628178A1 (en) * | 1976-06-23 | 1977-12-29 | Cremer & Breuer Keramische | METHOD AND DEVICE FOR AUTOMATIC, CONTINUOUS, NON-DESTRUCTION-FREE QUALITY CONTROL, IN PARTICULAR OF STONE PIPES |
DK139597B (en) * | 1977-07-01 | 1979-03-12 | Akad Tekn Videnskaber | Apparatus for recording echo impulses during ultrasound examinations. |
JPS5734545A (en) * | 1980-08-08 | 1982-02-24 | Canon Inc | Camera |
-
1983
- 1983-11-24 DE DE8383111752T patent/DE3376586D1/en not_active Expired
- 1983-11-24 AT AT83111752T patent/ATE34232T1/en not_active IP Right Cessation
- 1983-11-24 EP EP83111752A patent/EP0113031B1/en not_active Expired
- 1983-11-28 ZA ZA838869A patent/ZA838869B/en unknown
- 1983-12-01 IL IL70357A patent/IL70357A0/en unknown
- 1983-12-02 JP JP58227100A patent/JPS59150338A/en active Pending
-
1990
- 1990-08-09 HK HK625/90A patent/HK62590A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3376586D1 (en) | 1988-06-16 |
EP0113031A3 (en) | 1985-04-10 |
EP0113031B1 (en) | 1988-05-11 |
HK62590A (en) | 1990-08-17 |
ZA838869B (en) | 1984-12-24 |
JPS59150338A (en) | 1984-08-28 |
EP0113031A2 (en) | 1984-07-11 |
ATE34232T1 (en) | 1988-05-15 |
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