Title:
SOUND PRESSURE MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2023094817
Kind Code:
A
Abstract:
To provide a sound pressure measurement device which can reduce the number of components of a holding part and suppress the generation of a measurement error by making a sound sensor to be difficult for vibrating.SOLUTION: A sound pressure measurement device 100 that measures a sound pressure generated by a speaker 13 for a function inspection of the speaker 13, and transmits its measurement result to a railroad crossing device box 14 in radio, comprises: a sound pressure sensor 110; and a holding part 120 that holds the sound pressure sensor 110. The holding part 120 is constructed as an integrated component of a cross section L-character shape in which a first piece part 120a and a second piece part 120b are continuously bent. The sound pressure sensor 110 includes: a sound collection substrate S; and a housing 111 that builds the sound collection substrate S. A sensing housing 111 is fixed to the second piece part 120b. The sound pressure measurement device 100 is fixed so as to nip one part of a horn 13a of a speaker with the housing 111 and the first piece part 120a, and one part of the sensing housing 111 is contacted to an inner surface of the horn.SELECTED DRAWING: Figure 5
Inventors:
TAKIMOTO KAZUYA
Application Number:
JP2021210338A
Publication Date:
July 06, 2023
Filing Date:
December 24, 2021
Export Citation:
Assignee:
SAGINOMIYA SEISAKUSHO INC
International Classes:
G01H3/00; H04R1/02
Attorney, Agent or Firm:
Fumio Takino
Toshiaki Tsuda
Yasuhiro Fukuda
Toshiaki Tsuda
Yasuhiro Fukuda
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