JPS55110500A - Inspection unit for speaker system - Google Patents

Inspection unit for speaker system

Info

Publication number
JPS55110500A
JPS55110500A JP1786179A JP1786179A JPS55110500A JP S55110500 A JPS55110500 A JP S55110500A JP 1786179 A JP1786179 A JP 1786179A JP 1786179 A JP1786179 A JP 1786179A JP S55110500 A JPS55110500 A JP S55110500A
Authority
JP
Japan
Prior art keywords
magnetic
speaker
vessel
inspection unit
magnetic film
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.)
Granted
Application number
JP1786179A
Other languages
Japanese (ja)
Other versions
JPS6111038B2 (en
Inventor
Satoshi Hikichi
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.)
Tokin Corp
Original Assignee
Tohoku Metal Industries 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 Tohoku Metal Industries Ltd filed Critical Tohoku Metal Industries Ltd
Priority to JP1786179A priority Critical patent/JPS55110500A/en
Publication of JPS55110500A publication Critical patent/JPS55110500A/en
Publication of JPS6111038B2 publication Critical patent/JPS6111038B2/ja
Granted 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
    • H04R29/00—Monitoring arrangements; Testing arrangements

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To enable to observe the oscillation of speaker system visually, by constituting the inspection unit with the inspection set giving magnetic fluid in the vessel of non-magnetic substance and of thin magnetic film having elasticity and locating the unit in front of the speaker. CONSTITUTION:The inspection unit is constituted with the vessel 1 of thin disc made of non-magnetic substance, magnetic film 3 of flexible material tensioned on the non-magnetic frame 2, and the non-magnetic frame 4 fitted with the magnetic film 3 via the gap under the vessel 1. The upper cover 5 of the vessel 1 is made of transparent material, the magnetic fluid 6 is put in the inside so that it can freely be moved, this inspection unit is located on the upper surface of the speaker 9 fitted to the box 8 having the front net 7. The movement of the magnetic fluid 6 is observed due to the movement of the magnetic film 3 through the application of a given voltage to the speaker 9 to inspect the speaker 9.
JP1786179A 1979-02-20 1979-02-20 Inspection unit for speaker system Granted JPS55110500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1786179A JPS55110500A (en) 1979-02-20 1979-02-20 Inspection unit for speaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1786179A JPS55110500A (en) 1979-02-20 1979-02-20 Inspection unit for speaker system

Publications (2)

Publication Number Publication Date
JPS55110500A true JPS55110500A (en) 1980-08-25
JPS6111038B2 JPS6111038B2 (en) 1986-04-01

Family

ID=11955431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1786179A Granted JPS55110500A (en) 1979-02-20 1979-02-20 Inspection unit for speaker system

Country Status (1)

Country Link
JP (1) JPS55110500A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153439U (en) * 1986-03-20 1987-09-29
CA2011434C (en) * 1989-10-02 2000-10-24 Richard D. Hein Automotive powertrain mount

Also Published As

Publication number Publication date
JPS6111038B2 (en) 1986-04-01

Similar Documents

Publication Publication Date Title
AT363667B (en) DEVICE FOR MIXING A MATERIAL IN AN AIRFLOW
BE845762R (en) LIQUID CRYSTALLINE MATERIALS AND APPARATUS INCLUDING
IL41915A0 (en) Test device for determining the presence and concentration of a material in a solution
SE7510090L (en) KIT AND APPARATUS FOR EXAMINATION OF WETS IN A TRANSPARENT CONTAINER.
JPS554590A (en) Distributer for liquid material to be tested
BE843708A (en) APPARATUS FOR REMOVING MATERIAL LAYERS FROM THE INTERIOR SURFACES OF CONTAINERS
SE433062B (en) MAGNETICALLY ORIENTABLE RETURN REFLECTIVE PARTICLES AND USE THEREOF TO MAKE TEXTILE MATERIAL RETURN REFLECTIVE
BE856259A (en) APPARATUS FOR MEASURING THE MECHANICAL CHARACTERISTICS OF A MATERIAL SUCH AS SKIN
SE427194B (en) DEVICE FOR PREPARING LIQUID MATERIALS
CH494184A (en) Device for regulating the tension of an elongated flexible material
DK134499B (en) Apparatus for providing an ultrasound image for use in measuring the distribution of meat and fat on biological material.
SE413348B (en) APPLICATION FOR USE IN THE PROCESSING OF A RECORDING MATERIAL IN SHEET OR BAND FORM
JPS55110500A (en) Inspection unit for speaker system
JPS5562358A (en) Apparatus for measuring humidity in material
FR2315687A1 (en) DEVICE FOR MEASURING AND INDICATING DEPTH OF MATERIAL CONTAINED IN A CONTAINER
AT369149B (en) DEVICE FOR AVOIDING OVERPRESSURE IN THE HOUSING OF SHUT-OFF DEVICES
BE842751A (en) CONTAINER IN SYNTHETIC, THIN AND FLEXIBLE MATERIAL
BE851582A (en) GRANULAR MATERIAL DISTRIBUTION APPARATUS
JPS5340583A (en) Inspecting apparatus for bottle.s bottom
GB2027312B (en) Mehtod of automatically ascertaining and evaluating changes in the contents of pictures and arrangements therefor
CH339911A (en) Method for operating a liquid filter with granular filter material and filter for carrying out the method
CH499109A (en) Method and device for determining the oxygen demand of a material containing oxidizable components
SU896675A1 (en) Device for demonstrating atomic structure of solid bodies
JPS51145321A (en) Static recording method
JPS5382337A (en) Developing liquid for use in visualization of light recording material