Title:
変位記録装置
Document Type and Number:
Japanese Patent JP7201476
Kind Code:
B2
Abstract:
To provide a displacement recording device which can measure and record a relative displacement amount and acceleration during an earthquake which occurs between a pair of relative displacement parts built into a structure even when the commercial power supply is stopped due to the earthquake or the like.SOLUTION: The displacement recording device comprises: an electric drive type displacement meter built into a structure to measure a relative displacement amount; an electric drive type accelerometer which measures acceleration generated in the structure; an electric drive type all data storage unit which always stores the relative displacement amount and the acceleration; an electric drive type earthquake data storage unit which records the relative displacement and the acceleration during an earthquake; an electric drive type control unit which stores the measured relative displacement amount and the acceleration in the earthquake data storage unit, when an acceleration at a level equivalent to an earthquake is input from the accelerometer; and an auxiliary power unit which supplies auxiliary power to the displacement meter, the accelerometer, the all data storage unit, the earthquake data storage unit and the control unit, when a supply of commercial power is stopped.SELECTED DRAWING: Figure 4
Inventors:
Hitoshi Naito
Kazuki Arizono
Keisuke Shioda
Kazuki Arizono
Keisuke Shioda
Application Number:
JP2019033991A
Publication Date:
January 10, 2023
Filing Date:
February 27, 2019
Export Citation:
Assignee:
JFE Civil Engineering & Construction Co., Ltd.
International Classes:
G01D9/00; E04H9/02; F16F7/12; F16F15/02; G01B7/24
Domestic Patent References:
| JP2001214633A | ||||
| JP2009300187A | ||||
| JP2017198539A |
Foreign References:
| WO2009034821A1 |
Attorney, Agent or Firm:
田中 秀▲てつ▼
Hirose Hajime
Miyasaka Tohru
Tetsuya Mori
Hirose Hajime
Miyasaka Tohru
Tetsuya Mori