Title:
ELECTROACOUSTIC CONVERTER AND METHOD OF FORMING SAME
Document Type and Number:
Japanese Patent JPS6128292
Kind Code:
A
Abstract:
An electroacoustic converter with a closed-off resonance chamber, e.g. a microphone, includes frame (1) carrying an electrode (2) and a diaphragm (3) together with means for electrical connection (5). A band (17) of plastically deformable material is sellingly attached to the frame via a joint (15) for providing good base reproduction. The sensitivity of the microphone, which depends on the volume of the resonance chamber, is adjusted to the desired value by an impression (16) in the band. When in production, the frames (1) are attached to the band (17) and are conveyed with its aid between different operation stations. Sensitivity is measured with the aid of a measuring apparatus (20) and a loudspeaker (18) and is adjusted by a tool (19).
Inventors:
HENINGU SHIYUMITSUTO MATSUDOSE
TOMII SHIGUBARUDO SEGEROO
KAARU ARITSUTO YOHANSON
TOMII SHIGUBARUDO SEGEROO
KAARU ARITSUTO YOHANSON
Application Number:
JP26867584A
Publication Date:
February 07, 1986
Filing Date:
December 21, 1984
Export Citation:
Assignee:
ERICSSON TELEFON AB L M
International Classes:
H04R1/28; H04R1/22; H04R19/00; H04R19/01; H04R31/00; (IPC1-7): H04R1/28; H04R19/01; H04R31/00
Attorney, Agent or Firm:
Asamura Akira