JPS496946A - - Google Patents

Info

Publication number
JPS496946A
JPS496946A JP2258773A JP2258773A JPS496946A JP S496946 A JPS496946 A JP S496946A JP 2258773 A JP2258773 A JP 2258773A JP 2258773 A JP2258773 A JP 2258773A JP S496946 A JPS496946 A JP S496946A
Authority
JP
Japan
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.)
Pending
Application number
JP2258773A
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 filed Critical
Publication of JPS496946A publication Critical patent/JPS496946A/ja
Pending 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
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Optical Transform (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2258773A 1972-02-24 1973-02-24 Pending JPS496946A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB850172 1972-02-24
GB4937972A GB1419111A (en) 1972-02-24 1972-10-26 Photoelectric transducer
GB5435172 1972-11-24

Publications (1)

Publication Number Publication Date
JPS496946A true JPS496946A (ja) 1974-01-22

Family

ID=27255212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2258773A Pending JPS496946A (ja) 1972-02-24 1973-02-24

Country Status (3)

Country Link
JP (1) JPS496946A (ja)
DE (1) DE2308785A1 (ja)
GB (1) GB1419111A (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142164A1 (de) * 1980-10-27 1982-06-16 Rosemount Engineering Co. Ltd., Bognor Regis, Sussex Vorrichtung zur messung von druckunterschieden
US4568414A (en) * 1984-09-21 1986-02-04 At&T Technologies, Inc. Methods and apparatus for tensioning sheet material
DE3517054C1 (de) * 1985-05-11 1986-03-13 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Optoelektrischer Geber zur Messung mechanischer Größen
GB8621810D0 (en) * 1986-09-10 1986-10-15 Whitehouse J C Rangefinder for robotic applications
US7724915B2 (en) 2004-04-05 2010-05-25 Panasonic Corporation Speaker device
EP3468634A1 (en) * 2016-09-01 2019-04-17 Novartis AG Systems and methods for non-invasive measurement of cassette pressure

Also Published As

Publication number Publication date
GB1419111A (en) 1975-12-24
DE2308785A1 (de) 1973-10-11

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