JPS5582004A - Inspection unit for coin - Google Patents
Inspection unit for coinInfo
- Publication number
- JPS5582004A JPS5582004A JP15525378A JP15525378A JPS5582004A JP S5582004 A JPS5582004 A JP S5582004A JP 15525378 A JP15525378 A JP 15525378A JP 15525378 A JP15525378 A JP 15525378A JP S5582004 A JPS5582004 A JP S5582004A
- Authority
- JP
- Japan
- Prior art keywords
- coin
- coils
- high frequency
- inspected
- oscillator
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Testing Of Coins (AREA)
Abstract
PURPOSE: To judge the propriety of coins based on the maximum frequency due to the sum of inductances of the both coils, by locating one pair of coils forming high frequency magnetic field opposingly to the both sides of inspected coin in series but in opposite phase connection.
CONSTITUTION: The path of the coil 8 formed with a pair of side walls 9, 10 is tilted to one side and the coin 11 in normal inspection is moved along the side wall 8. The coils 2 and 3 located at the side walls 9 and 10 so that they oppose to the front and back of the inspected coin 11, are connected in series and opposite phase, to which the output of the oscillator 1 oscillating with constant high frequency 200kHz or more is fed to form the high frequency AC magnetic field. When the inspected coin 11 passes through, since the inductance of the coils 2, 3 is changed with the skin effect, causing the frequency of the oscillator 1. Thus, the judgement units 6 and 7 can discriminate the correct coins.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15525378A JPS6013517B2 (en) | 1978-12-14 | 1978-12-14 | coin inspection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15525378A JPS6013517B2 (en) | 1978-12-14 | 1978-12-14 | coin inspection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5582004A true JPS5582004A (en) | 1980-06-20 |
JPS6013517B2 JPS6013517B2 (en) | 1985-04-08 |
Family
ID=15601875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15525378A Expired JPS6013517B2 (en) | 1978-12-14 | 1978-12-14 | coin inspection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6013517B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5078252A (en) * | 1989-04-10 | 1992-01-07 | Kabushiki Kaisha Nippon Conlux | Coin selector |
WO1998039621A1 (en) * | 1997-03-05 | 1998-09-11 | Vs Sensorik Gmbh | Magnetic sensor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03114810U (en) * | 1990-03-07 | 1991-11-26 |
-
1978
- 1978-12-14 JP JP15525378A patent/JPS6013517B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5078252A (en) * | 1989-04-10 | 1992-01-07 | Kabushiki Kaisha Nippon Conlux | Coin selector |
WO1998039621A1 (en) * | 1997-03-05 | 1998-09-11 | Vs Sensorik Gmbh | Magnetic sensor |
Also Published As
Publication number | Publication date |
---|---|
JPS6013517B2 (en) | 1985-04-08 |
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