Structure Health Monitoring System
Long Duration Vibration Monitoring System
3 axis simultaneous measurement of earthquake waveform or low frequency vibration
Cost-effective measuring unit for structural health monitoring. Usable for a wide range of applications,
including fine earthquake measurement or tilt detection. Not limited to structure monitoring.
High precision long period vibration measurement capability
Operation verification at low frequency 0.04 by AIST* has proven
that HM-0013 can detect the long-ground motion accurately.
*AIST: National Institute of Advanced Industrial Science and Technology.
High precision micro motion measurement capability
Because microtremor down of 0.1 gal is measurable, it is also used for evaluation of floor vibration in addition to earthquake monitoring
Versatile monitoring functions
Data save memory for power failure
Recording for seismic motion must survive even on blackout. To meet this requirement, HM-0013 carries the memory with no limitation on writing time number which won’ t be lost in power failure.
RS485 Modbus communication
In case of HM-0013 connected in series, being supplied power provided by the host, up to 4 pcs connection within total 80 m is possible. By using power junction box between connections, it can extend the cable length and increase the number of connecting units. Even if the specially prepared host is not available, you can establish your system as you like refering the data map provided by IMV.
Synchronization designated line
Synchronization in multi-point measurement is very important and HM-0013 is designed for those analysis is easily carried out. Complete synchronization is possible since the each unit secures designated line for synchronization. Synchronization for all measured data is secured with simultaneous AD conversion in each axis.
Operation check from HM-0013 internal sensor to output function. For example, it checks if the unit is correctly operated from remote place once in a day
Host loss recovery function
After the condition is set and the measurement starts, even the connection to the host is shut down, single unit of HM-0013 continues the normal operation as long as the power is secured.
Thin dedicated cable
Can be operated with external diameter 5 mm cable (φ5). Easy installation with smaller restriction (connector φ13)
Function to reduce installation work
Protection grade IP67
It is designed with a waterproof and dustproof protection and can be used outside safely.
Impact resistance 1000G
Having the high level impact resistance.
The robust structure drastically reduce break accident in installation construction.
Size has been significantly scaled down compared to a servo type acceleration sensor which had been generally used as a low frequency vibration measurement. Flexibility at installation site is improved.
High security and noise resistance has passed Europe standard.
Smart display unit TM-0013-HM
HM-0013 units are connected up to four units and those high spec sensors can be operated with 7 inch touch panel. It carries a waveform measurement function with time reservation or a seismic measurement function, corresponding to mailing notification by Ethernet.
USB converter UC-0013
The device to convert to USB connector for connecting HM-0013 to PC or designated gateway GW-0013. It has alarm relay / external trigger switch forcing HM-0013 to record the data.
Designated gateway GW-0013
It is a IoT unit capable of remote control and data collection. Measurement data can be
viewed from any
kind of terminal (PC or smartphone etc.) through internet connection browser by connecting
to cloud server
with 3G data communication or Ethernet.
Power junction box RP-0013
Located at middle of connection, cable extension and unit addition is possible.
Connection cable length
By using Power Junction Box RP-0013, technically speaking, there is no limitation for cable length. Please contact us for length and system quantity. When the number of unit increase, it may limit some part of functions.
To regard concreate structures such as building or public and infrastructures such as bridges or tunnels as person, just like health diagnosis, measuring condition of those structures is called structure health monitoring.
One of various diagnosis method, health monitoring with vibrometers has been paid attention to evaluate deterioration of aging buildings or bridges.
Purpose: Understand the scour of bridge pier (Japan MLIT, SIP project)
Joint study with Prof. Kawai from Osaka City University to conduct health monitoring of bridge. It is adopted as one of them in SIP (strategic innovation creation program) by Ministry of Land, Infrastructure, Transport and Tourism
To measure vibration or inclination of a bridge pier, understand the condition of score at lower part of foundation work.
Measurement scene Vibration monitoring at Yoshino river in Shikoku area
This study is conducted by “SIP infrastructure management and technology” Council for Science, Technology and Innovation.
Purpose: Health monitoring of building structure
Kumamoto great earthquake occurred in April 16th, 2016 was detected at IMV headquarter building. Taking advantage of high performance of HM-0013, the function which can smoothly evaluate postearthquake damage is now developed.
This measurement is carried with Osaka city innovation creation support subsidy. Development of structure monitoring system
Seismic intensity distribution map
Seismic intensity display
Post earthquake damage evaluation
Tokyo Denki University, Executive vise president Mr. Satoshi Fujita
Nara Women’s University Faculty of Human Life and Environment, Mr. Atsuo Takino
*Include Imperial measurements