Display-type Seismometers
ADA-7 |
Display-type Seismometers
DAS-400 series |
Digital Strong-motion Seismometers
SMAC-MDU |
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Detects horizontal seismic vibration |
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Seismic intensity indication for evacuation or disaster prevention activities |
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Displays the intensity scale‚ measured seismic intensity‚ SI value‚ and acceleration |
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Records important observed seismic data including acceleration waveforms‚ measured seismic intensity‚ and SI values |
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Capable of observing seismic activity from tremors to strong motion. |
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Acceleration Detectors
JEP series |
Multi-channel Earthquake Recording Equipment
AJE-8200 |
Control-type Seismometer
AJA series |
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Detector for seismic observation equipment that has a sensitive accelerometer |
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Above-ground and underground types are available. |
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Up to 33 units of 3-component detectors can be connected. |
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Best suited for observing dams‚ bridges‚ or other engineering structures |
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Detects horizontal seismic vibration |
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Best suited for emergency control of nuclear power plants or bullet trains |
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Control-type Seismometer
ASA series |
General Purpose Earthquake Sensors
AEA series |
Diffusion-type Sensor
AJS-2A/AJA-6ES |
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Detects horizontal seismic vibration |
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Best suited for emergency cutoff of high-pressure gas or water facilities |
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Vertical and horizontal motion detection types are available. |
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Best suited for emergency control of various pieces of equipment at factories‚ large stores‚ or hospitals |
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Detects seismic vibration in all directions |
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Best suited for cutoff control of instruments that use fire by directly connecting it |
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Data Loggers
GPL-6A3P |
Data Loggers
GPL-01 |
Combined Crust Activity Observation Equipment
ICBO series |
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Integrated acceleration detector and waveform recording equipment for 3 orthogonal components |
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Suitable for movement observation and capable of measuring tremors |
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High resolution waveform recording using 24-bit A/D |
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Best suited for recording seismic waves |
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Measures crustal movement after installation into an underground measurement borehole |
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Combined observation equipment that consists of underground detectors including a tiltmeter‚ accelerometer‚ speedmeter‚ and strain meter |
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Marine Seismometer
AMS series |
Borehole Type Tiltmeter
JTS series |
Water Tube Tiltmeter and Extensometer
WTT/EXT series |
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Measures even tremors after installation of a seismometer directly on the seafloor |
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Marine seismometer for real time‚ continuous observation on the seafloor |
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Force-balance borehole type tiltmeter series |
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Observes seismic and volcanic activity based on tilt variation of the crust |
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Water tube tiltmeter and extensometer series for observing tunnels |
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Suitable for observing earthquakes and volcanic eruptions‚ or tilt and extension movement of dams and tunnel strata |
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Deep‚ Medium‚ and Shallow Layer Observation Equipment
ABS series |
Laser Strain Meter
BLS series |
Shallow Crust Activity Monitor
ABS-143 |
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Measures crustal movement after installation into an underground measurement borehole |
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Observation equipment that can be installed 50 to 2000 m underground and used in combination with various detectors |
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Measures crust strain by using a laser |
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Transmits detector signals via fiber-optic cable and is thus noise-free in high temperature or high pressure environments |
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Works well in Hi-Net‚ a shallow layer crustal movement observation network |
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Observes seismic activity from tremors to strong motion that is difficult to identify above ground when used in combination with underground and above-ground detectors for measurement |
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