ES8800771A3 - Improvements in a coin discriminating apparatus - Google Patents

Improvements in a coin discriminating apparatus

Info

Publication number
ES8800771A3
ES8800771A3 ES549338A ES549338A ES8800771A3 ES 8800771 A3 ES8800771 A3 ES 8800771A3 ES 549338 A ES549338 A ES 549338A ES 549338 A ES549338 A ES 549338A ES 8800771 A3 ES8800771 A3 ES 8800771A3
Authority
ES
Spain
Prior art keywords
coil
coin
arrangement
voltage
longer
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.)
Expired
Application number
ES549338A
Other languages
Spanish (es)
Other versions
ES549338A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CASE CASH PROCESSING Ltd
Original Assignee
CASE CASH PROCESSING Ltd
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 CASE CASH PROCESSING Ltd filed Critical CASE CASH PROCESSING Ltd
Priority to ES549338A priority Critical patent/ES8800771A3/en
Publication of ES549338A0 publication Critical patent/ES549338A0/en
Publication of ES8800771A3 publication Critical patent/ES8800771A3/en
Expired legal-status Critical Current

Links

Abstract

Various electrical coin testing arrangements are described which may be used in coin sorters or in coin validators for example. In each arrangement a transmit coil is pulsed with a rectangular voltage pulse and the eddy currents in an adjacent coin under test are monitored, either by monitoring the resulting current in the same coil or in a different coil. In one arrangement, Figure 7, particularly suitable for a coin validator, a single coil 3 acts as both a transmitter and receiver and is successively pulsed with voltage pulses of different lengths, and the decaying eddy currents are measured by measuring the coil voltage after delays which are longer for longer voltage pulses, in order to reduce the dynamic range requirements of the monitoring circuitry A, M. In a second arrangement, Figure 4, two transmit coils 3, 4 are used, the larger coil 3 being larger than each of the coins 6 to be tested, and the smaller coil 4 being smaller than each coin.
ES549338A 1985-11-27 1985-11-27 Improvements in a coin discriminating apparatus Expired ES8800771A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES549338A ES8800771A3 (en) 1985-11-27 1985-11-27 Improvements in a coin discriminating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES549338A ES8800771A3 (en) 1985-11-27 1985-11-27 Improvements in a coin discriminating apparatus

Publications (2)

Publication Number Publication Date
ES549338A0 ES549338A0 (en) 1987-11-16
ES8800771A3 true ES8800771A3 (en) 1987-11-16

Family

ID=8490300

Family Applications (1)

Application Number Title Priority Date Filing Date
ES549338A Expired ES8800771A3 (en) 1985-11-27 1985-11-27 Improvements in a coin discriminating apparatus

Country Status (1)

Country Link
ES (1) ES8800771A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8625743B1 (en) 2011-04-28 2014-01-07 General Electric Company Inverse pulse control for eddy current abatement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8625743B1 (en) 2011-04-28 2014-01-07 General Electric Company Inverse pulse control for eddy current abatement

Also Published As

Publication number Publication date
ES549338A0 (en) 1987-11-16

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170627