GB1220333A - Improvements for electrical circuits - Google Patents

Improvements for electrical circuits

Info

Publication number
GB1220333A
GB1220333A GB3650067A GB3650067A GB1220333A GB 1220333 A GB1220333 A GB 1220333A GB 3650067 A GB3650067 A GB 3650067A GB 3650067 A GB3650067 A GB 3650067A GB 1220333 A GB1220333 A GB 1220333A
Authority
GB
United Kingdom
Prior art keywords
transducers
photo
cells
energized
electrical 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
GB3650067A
Inventor
John Francis Cowles
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.)
Parnall and Sons Ltd
Original Assignee
Parnall and Sons 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 Parnall and Sons Ltd filed Critical Parnall and Sons Ltd
Priority to GB3650067A priority Critical patent/GB1220333A/en
Publication of GB1220333A publication Critical patent/GB1220333A/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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

1.220,333. Transducer circuits, measuring temperature and force electrically. PARNALL & SONS Ltd. Oct. 11, 1968 [Aug. 9, 1967], No.36500/67. Headings G1A and G1N. Two transducers 1, 2 connected to a common load 5 are alternatively energized through respective diodes 3, 4 by power sources 8 and 9 energized or not according to the state of a bi-stable circuit 10 controlled by a trigger pulse source 11. The transducers may be photo-cells, thermistors, polarized microphones or strain gauges and need not be of the same type. If photo-cells, they may be sensitive to different colours and may be used in the document reader of Specification 1,215,302.
GB3650067A 1967-08-09 1967-08-09 Improvements for electrical circuits Expired GB1220333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3650067A GB1220333A (en) 1967-08-09 1967-08-09 Improvements for electrical circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3650067A GB1220333A (en) 1967-08-09 1967-08-09 Improvements for electrical circuits

Publications (1)

Publication Number Publication Date
GB1220333A true GB1220333A (en) 1971-01-27

Family

ID=10388742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3650067A Expired GB1220333A (en) 1967-08-09 1967-08-09 Improvements for electrical circuits

Country Status (1)

Country Link
GB (1) GB1220333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228824A (en) * 1989-03-01 1990-09-05 Gen Electric Co Plc Radiation detectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228824A (en) * 1989-03-01 1990-09-05 Gen Electric Co Plc Radiation detectors

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