JPS55101021A - Earthquake sensor for elevator - Google Patents

Earthquake sensor for elevator

Info

Publication number
JPS55101021A
JPS55101021A JP831479A JP831479A JPS55101021A JP S55101021 A JPS55101021 A JP S55101021A JP 831479 A JP831479 A JP 831479A JP 831479 A JP831479 A JP 831479A JP S55101021 A JPS55101021 A JP S55101021A
Authority
JP
Japan
Prior art keywords
earthquake
frequency range
output
earthquake sensor
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.)
Pending
Application number
JP831479A
Other languages
Japanese (ja)
Inventor
Katsuhiko Suzuki
Hitoshi Tajima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP831479A priority Critical patent/JPS55101021A/en
Publication of JPS55101021A publication Critical patent/JPS55101021A/en
Pending legal-status Critical Current

Links

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To improve sensitivity to an earthquake while preventing malfunction due to disturbance by providing an electric filter, which suppresses the high-frequency range of output, coupling direct with an earthquake sensor which generates its output through the operation of a dynamic coil.
CONSTITUTION: An earthquake sensor, composed of a converter making use of the development of a voltage across it through the motion of dynamic coil 1, is provided with electric filter 4 which suppresses the output of the high frequency range of the earthquake sensor such as a low-pass filter and band-pass filter. As a result, malfunction due to disturbance of vibrations of relatively-high frequency range FH is prevented and it is also made possible to detect initial fine vibration of an earthquake with high sensitivity so as to exercise earthquake control over an elevator in its early stage, thereby preventing secondary disaster from occurring.
COPYRIGHT: (C)1980,JPO&Japio
JP831479A 1979-01-26 1979-01-26 Earthquake sensor for elevator Pending JPS55101021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP831479A JPS55101021A (en) 1979-01-26 1979-01-26 Earthquake sensor for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP831479A JPS55101021A (en) 1979-01-26 1979-01-26 Earthquake sensor for elevator

Publications (1)

Publication Number Publication Date
JPS55101021A true JPS55101021A (en) 1980-08-01

Family

ID=11689684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP831479A Pending JPS55101021A (en) 1979-01-26 1979-01-26 Earthquake sensor for elevator

Country Status (1)

Country Link
JP (1) JPS55101021A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011737A1 (en) * 1990-01-25 1991-08-08 Matsushita Electric Industrial Co., Ltd. Earthquake sensor
JP2008308240A (en) * 2007-06-12 2008-12-25 Mitsubishi Electric Corp Elevator control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011737A1 (en) * 1990-01-25 1991-08-08 Matsushita Electric Industrial Co., Ltd. Earthquake sensor
US5396223A (en) * 1990-01-25 1995-03-07 Matsushita Electric Industrial Co., Ltd. Earthquake detecting apparatus
JP2008308240A (en) * 2007-06-12 2008-12-25 Mitsubishi Electric Corp Elevator control device

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