JPH04191623A - Apparatus for measuring noise of machinery - Google Patents

Apparatus for measuring noise of machinery

Info

Publication number
JPH04191623A
JPH04191623A JP32115390A JP32115390A JPH04191623A JP H04191623 A JPH04191623 A JP H04191623A JP 32115390 A JP32115390 A JP 32115390A JP 32115390 A JP32115390 A JP 32115390A JP H04191623 A JPH04191623 A JP H04191623A
Authority
JP
Japan
Prior art keywords
noise
measuring
starting
machinery
elevator
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
JP32115390A
Other languages
Japanese (ja)
Other versions
JP2804626B2 (en
Inventor
Naohiko Ishida
Makoto Kikuchi
Hisaya Ogata
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.)
Hitachi Building Systems Engineering and Service Co Ltd
Hitachi Building Systems Engineering Co Ltd
Original Assignee
Hitachi Building Systems Engineering and Service Co Ltd
Hitachi Building Systems Engineering 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 Hitachi Building Systems Engineering and Service Co Ltd, Hitachi Building Systems Engineering Co Ltd filed Critical Hitachi Building Systems Engineering and Service Co Ltd
Priority to JP32115390A priority Critical patent/JP2804626B2/en
Publication of JPH04191623A publication Critical patent/JPH04191623A/en
Application granted granted Critical
Publication of JP2804626B2 publication Critical patent/JP2804626B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To measure and record the noise of machinery under low background noise by starting machinery to be measured and a noise meter on the basis of a signal detecting that the sound pressure of background noise is continued at the level of a predetermined value or less for a predetermined time and measuring and recording the noise emitted from the machinery.
CONSTITUTION: A background noise detector 11 detecting background noise is connected to the output terminal of a noise meter 10 measuring noise and a starting apparatus 12 starting a drive apparatus 4 is connected to the output terminal of the detector 11 to constitute a noise measuring apparatus 8. This noise measuring apparatus 8 is arranged in a sitting room measuring the noise at the time of the operation of an elevator and the starting apparatus 12 and the drive apparatus 4 are connected by a cable K. The background noise detector 11 detects that noise is continued in the state of a predetermined level or less for a predetermined time on the basis of the sound pressure of the noise meter 10 to output a detection signal. At this time, the starting apparatus 12 is operated to start the drive apparatus 4 for a predetermined time and the elevator is driven and a recorder 13 is also operated to record the noise of the elevator.
COPYRIGHT: (C)1992,JPO&Japio
JP32115390A 1990-11-27 1990-11-27 Equipment noise measuring device Expired - Lifetime JP2804626B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32115390A JP2804626B2 (en) 1990-11-27 1990-11-27 Equipment noise measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32115390A JP2804626B2 (en) 1990-11-27 1990-11-27 Equipment noise measuring device

Publications (2)

Publication Number Publication Date
JPH04191623A true JPH04191623A (en) 1992-07-09
JP2804626B2 JP2804626B2 (en) 1998-09-30

Family

ID=18129397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32115390A Expired - Lifetime JP2804626B2 (en) 1990-11-27 1990-11-27 Equipment noise measuring device

Country Status (1)

Country Link
JP (1) JP2804626B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008105763A (en) * 2006-10-23 2008-05-08 Mitsubishi Electric Building Techno Service Co Ltd Control method and device of elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008105763A (en) * 2006-10-23 2008-05-08 Mitsubishi Electric Building Techno Service Co Ltd Control method and device of elevator

Also Published As

Publication number Publication date
JP2804626B2 (en) 1998-09-30

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