CA1008145A - Capacitance responsive control circuits - Google Patents

Capacitance responsive control circuits

Info

Publication number
CA1008145A
CA1008145A CA178,020A CA178020A CA1008145A CA 1008145 A CA1008145 A CA 1008145A CA 178020 A CA178020 A CA 178020A CA 1008145 A CA1008145 A CA 1008145A
Authority
CA
Canada
Prior art keywords
control circuits
responsive control
capacitance responsive
capacitance
circuits
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
CA178,020A
Other languages
English (en)
Other versions
CA178020S (en
Inventor
Carl E. Atkins
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.)
Wagner Electric Corp
Original Assignee
Wagner Electric Corp
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 Wagner Electric Corp filed Critical Wagner Electric Corp
Priority to CA255,586A priority Critical patent/CA1003922A/en
Application granted granted Critical
Publication of CA1008145A publication Critical patent/CA1008145A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
CA178,020A 1972-08-14 1973-08-02 Capacitance responsive control circuits Expired CA1008145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA255,586A CA1003922A (en) 1972-08-14 1976-06-24 Control circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28021972A 1972-08-14 1972-08-14

Publications (1)

Publication Number Publication Date
CA1008145A true CA1008145A (en) 1977-04-05

Family

ID=23072165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA178,020A Expired CA1008145A (en) 1972-08-14 1973-08-02 Capacitance responsive control circuits

Country Status (7)

Country Link
US (1) US3801799A (de)
JP (1) JPS4959277A (de)
CA (1) CA1008145A (de)
DE (1) DE2341161A1 (de)
FR (1) FR2196492A1 (de)
GB (1) GB1411683A (de)
IT (1) IT990245B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264072A (en) * 1978-05-26 1981-04-28 Chalmers John E Electronic game apparatus
US4378504A (en) * 1980-03-25 1983-03-29 Omron Tateisi Electronics Co. Proximity switch
GB2131552B (en) * 1982-11-26 1986-12-31 Atomic Energy Authority Uk Non-destructive testing using eddy-currents
CH672383A5 (de) * 1986-10-29 1989-11-15 Baumer Electric Ag
JPH06249963A (ja) * 1993-02-25 1994-09-09 Asanumagumi:Kk 物体検出装置
US5832772A (en) * 1995-01-27 1998-11-10 The Regents Of The University Of California Micropower RF material proximity sensor
US6446012B1 (en) 1999-06-23 2002-09-03 Bfcs Technology, Inc. Proximity detector for hard-to-detect materials
US7057393B2 (en) * 2000-12-06 2006-06-06 Massachusetts Institute Of Technology System and method for measuring the dielectric strength of a fluid
US7035608B2 (en) * 2001-03-16 2006-04-25 Aura Communications Technology, Inc. Methods and apparatus for tuning in an inductive system
DE10315845B4 (de) * 2003-04-08 2005-10-06 Wolfgang Richter System, Systemkomponenten und Verfahren zur Abwicklung eines hermetisch validierbaren Datentransfers
US7034562B2 (en) * 2004-05-19 2006-04-25 Advantest Corporation Oscillation detecting apparatus and test apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255380A (en) * 1961-09-11 1966-06-07 Tung Sol Electric Inc Touch responsive circuit for control of a load
US3201774A (en) * 1962-12-26 1965-08-17 Tateisi Denki Kabushikikaisha Electrical sensing apparatus
US3200306A (en) * 1963-09-12 1965-08-10 Tung Sol Electric Inc Touch responsive circuit
US3199033A (en) * 1964-08-10 1965-08-03 Tung Sol Electric Inc Condition responsive circuits with plural output of relaxation oscillator balanced
US3324647A (en) * 1964-08-11 1967-06-13 Parmet Company Proximity detector
US3492542A (en) * 1967-02-17 1970-01-27 Wagner Electric Corp Single touch capacity switch

Also Published As

Publication number Publication date
DE2341161A1 (de) 1974-02-28
FR2196492A1 (de) 1974-03-15
IT990245B (it) 1975-06-20
GB1411683A (en) 1975-10-29
JPS4959277A (de) 1974-06-08
US3801799A (en) 1974-04-02

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