Japan, Tokyo Sokushin
Tokyo Shokushin VSE-355G3R Servo Velocity-meter
Product: made in Japan
Manufacturer: Tokyo Sokushin
Model: VSE-355G3R
Bore-hole type velocity-meter of VSE-355G3
Feature
The model VSE seismometer is designed for very wide range earthquake measurement.
Recommendable application: Broadband Seismology, Regional and Teleseismic, Microseisms, Tsunami warning, Strong-motion observation.
| Chip level | 2m/s |
| Frequency range | 0.008 to 70Hz |
| Dynamic range | 146dB |
| GL depth max. | GL-300m |
Frequency response
Specifications
| BROADBAND BORE-HOLE VSE-355G3R | |
| Mode of operation | Tri-axial |
| Frequency range | 0.008 to 70Hz |
| Max. measuring range | ±2m/s, ±20m/s2 (±2000Gal) |
| Sensitivity | 5V/m/s × 2 |
| Max. Output voltage | ±20V(Balanced output) |
| Tilt Output | 5.13V/0.1degree |
| Resolution | 10-8m/s2 (10-6Gal) |
| Dynamic range | 146dB |
| Calibration coil | 15μA/Gal, 1000Ω |
| Linearity | Less than 0.03% |
| Cross axis sensitivity | 0.50% |
| Sensitivity of Temperature coefficient | 0.01%/℃ |
| Temperature coefficient of zero-shift | 0.05%/℃ |
| Power requirements | ±15VDC |
| Current consumption | 150mA |
| Arrester | Voltage 30V, Current 5kV, 100A |
| Temperature range | -10℃ to 50℃ |
| Allowable shock | 30G (less than 0.1sec) |
| Dimension | φ140 × 621.5 mm |
| Enclosure | Waterproof 30kg/cm2 |
Recording Range
VSE-355G3 can record the important seismic signals shown by blue area
Dimension
Micro Earthquake (Teleseismic)
Small aftershock of Sumatra Earthquake, Observed in Japan distance of 6,400km from Epicenter.
Strong Motion (Near Source)
Off-Tokachi Earthquake (M=7.1), on September 26, 2003, distance from 90km from Epicenter.
The specification may change without notification because of the proved product.
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