GB1055418A - Improvements in or relating to electro-mechanical transducers - Google Patents

Improvements in or relating to electro-mechanical transducers

Info

Publication number
GB1055418A
GB1055418A GB4612264A GB4612264A GB1055418A GB 1055418 A GB1055418 A GB 1055418A GB 4612264 A GB4612264 A GB 4612264A GB 4612264 A GB4612264 A GB 4612264A GB 1055418 A GB1055418 A GB 1055418A
Authority
GB
United Kingdom
Prior art keywords
junction
impurities
pressure transducer
electro
relating
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
GB4612264A
Inventor
Keith Elidyr Preece
Peter John Lundberg
Peter Richard Selway
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to NL6412863A priority Critical patent/NL6412863A/xx
Priority to DE19641437470 priority patent/DE1437470A1/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4612264A priority patent/GB1055418A/en
Priority to FR994791A priority patent/FR1413760A/en
Priority to BE655949D priority patent/BE655949A/xx
Priority to FR16506A priority patent/FR1443291A/en
Priority to FR35888A priority patent/FR88946E/en
Priority to NL6513797A priority patent/NL6513797A/xx
Priority to DE19651515902 priority patent/DE1515902B2/en
Priority to FR38112A priority patent/FR89473E/en
Priority to NL6514685A priority patent/NL6514685A/xx
Priority to BE672213D priority patent/BE672213A/xx
Priority to FR54986A priority patent/FR89743E/en
Publication of GB1055418A publication Critical patent/GB1055418A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/06—Articles and bulk

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)
  • Pressure Sensors (AREA)

Abstract

1,055,418. Microphones. STANDARD TELEPHONES & CABLES Ltd. Nov. 5, 1965 [No. 12, 1964], No. 46122/64. Heading H4J. [Also in Division H1] A pressure transducer comprises a semiconductor body containing at least one PN junction doped with a minority carrier lifetime reducing impurity and a stylus bearing on the body adjacent the junction. The body, which may be of silicon or germanium, may constitute a diode or a junction transistor. Suitable lifetime reducing impurities are copper, silver, gold and nickel. The pressure sensitivity of the device which may form part of a microphone or a static pressure transducer increases with increasing concentration of these impurities and with increasing conductivity of the zones up to the point at which the semi-conductor properties of the material are lost.
GB4612264A 1963-11-19 1964-11-12 Improvements in or relating to electro-mechanical transducers Expired GB1055418A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
NL6412863A NL6412863A (en) 1963-11-19 1964-11-04
DE19641437470 DE1437470A1 (en) 1963-11-19 1964-11-07 Pressure transducer
GB4612264A GB1055418A (en) 1964-11-12 1964-11-12 Improvements in or relating to electro-mechanical transducers
FR994791A FR1413760A (en) 1963-11-19 1964-11-13 Electromechanical transducers
BE655949D BE655949A (en) 1963-11-19 1964-11-19
FR16506A FR1443291A (en) 1963-11-19 1965-05-10 Container edges for conveyor belts
FR35888A FR88946E (en) 1963-11-19 1965-10-22 Electromechanical transducers
NL6513797A NL6513797A (en) 1963-11-19 1965-10-25
DE19651515902 DE1515902B2 (en) 1963-11-19 1965-11-10 Piezoelectric pressure transducer
FR38112A FR89473E (en) 1963-11-19 1965-11-12 Electromechanical transducers
NL6514685A NL6514685A (en) 1963-11-19 1965-11-12
BE672213D BE672213A (en) 1963-11-19 1965-11-12
FR54986A FR89743E (en) 1963-11-19 1966-03-25 Container edges for conveyor belts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4612264A GB1055418A (en) 1964-11-12 1964-11-12 Improvements in or relating to electro-mechanical transducers

Publications (1)

Publication Number Publication Date
GB1055418A true GB1055418A (en) 1967-01-18

Family

ID=10439928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4612264A Expired GB1055418A (en) 1963-11-19 1964-11-12 Improvements in or relating to electro-mechanical transducers

Country Status (1)

Country Link
GB (1) GB1055418A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590336A (en) * 1967-05-26 1971-06-29 Matsushita Electric Ind Co Ltd Bending force sensitive mechano-electrical converting device employing a semiconductor diaphragm
US3611068A (en) * 1970-05-20 1971-10-05 Matsushita Electric Ind Co Ltd Contactless pressure sensitive semiconductor switch
US3737740A (en) * 1971-11-08 1973-06-05 Matsushita Electric Ind Co Ltd Solid-state magneto electrical transducer
US3808473A (en) * 1967-12-27 1974-04-30 Matsushita Electric Ind Co Ltd Multi-component semiconductor device having isolated pressure sensitive region

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590336A (en) * 1967-05-26 1971-06-29 Matsushita Electric Ind Co Ltd Bending force sensitive mechano-electrical converting device employing a semiconductor diaphragm
US3808473A (en) * 1967-12-27 1974-04-30 Matsushita Electric Ind Co Ltd Multi-component semiconductor device having isolated pressure sensitive region
US3611068A (en) * 1970-05-20 1971-10-05 Matsushita Electric Ind Co Ltd Contactless pressure sensitive semiconductor switch
US3737740A (en) * 1971-11-08 1973-06-05 Matsushita Electric Ind Co Ltd Solid-state magneto electrical transducer

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