JPS55101021A - Earthquake sensor for elevator - Google Patents
Earthquake sensor for elevatorInfo
- 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
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
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)
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 |
-
1979
- 1979-01-26 JP JP831479A patent/JPS55101021A/en active Pending
Cited By (3)
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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