JPS57132027A - Oscillation sensor by optical fiber - Google Patents

Oscillation sensor by optical fiber

Info

Publication number
JPS57132027A
JPS57132027A JP56016925A JP1692581A JPS57132027A JP S57132027 A JPS57132027 A JP S57132027A JP 56016925 A JP56016925 A JP 56016925A JP 1692581 A JP1692581 A JP 1692581A JP S57132027 A JPS57132027 A JP S57132027A
Authority
JP
Japan
Prior art keywords
optical fiber
diameter
oscillation sensor
resonance
fiber
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.)
Pending
Application number
JP56016925A
Other languages
Japanese (ja)
Inventor
Yoshinori Higuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56016925A priority Critical patent/JPS57132027A/en
Priority to DE19813139893 priority patent/DE3139893A1/en
Priority to US06/309,754 priority patent/US4450495A/en
Priority to FR8118950A priority patent/FR2492148B1/en
Publication of JPS57132027A publication Critical patent/JPS57132027A/en
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
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
    • G11B25/063—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape using tape inside container
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • G11B31/003—Arrangements for the associated working of recording or reproducing apparatus with related apparatus with radio receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H04B1/086—Portable receivers
    • H04B1/088—Portable receivers with parts of the receiver detachable or collapsible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To obtain a stable sensor of high sensitivity by making the diameter of the optical fiber in an oscillating part smaller than the diameter of other parts. CONSTITUTION:A light source 1, an optical fiber 2, a fixing frame 3, an optical fiber 4 and a photodetector 5 are provided. The diameter of the part of the fiber 4 fitted into the frame 3 is made smaller, whereby sensitivity is increased while the necessary frequency band is assured, and further the resonance at the resonance point is weakened.
JP56016925A 1980-10-09 1981-02-09 Oscillation sensor by optical fiber Pending JPS57132027A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56016925A JPS57132027A (en) 1981-02-09 1981-02-09 Oscillation sensor by optical fiber
DE19813139893 DE3139893A1 (en) 1980-10-09 1981-10-07 PORTABLE ACOUSTIC DEVICE
US06/309,754 US4450495A (en) 1980-10-09 1981-10-08 Portable acoustic device
FR8118950A FR2492148B1 (en) 1980-10-09 1981-10-08 PORTABLE SOUND APPARATUS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016925A JPS57132027A (en) 1981-02-09 1981-02-09 Oscillation sensor by optical fiber

Publications (1)

Publication Number Publication Date
JPS57132027A true JPS57132027A (en) 1982-08-16

Family

ID=11929695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016925A Pending JPS57132027A (en) 1980-10-09 1981-02-09 Oscillation sensor by optical fiber

Country Status (1)

Country Link
JP (1) JPS57132027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489027U (en) * 1990-05-15 1992-08-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489027U (en) * 1990-05-15 1992-08-03

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