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Tokyo Sokushin VSE-15D-6 Servo Velocity-meter

Product: Made in Japan
Manufacturer: Tokyo Sokushin
Model: VSE-15D-6

Useful for

 Survey of an underground structure.
 After shock
 Micro-tremor
 Micro-earthquake
 Any of vibration Experiment

Feature

Sensibility is higher than accelerometer

 

Dimension

SPECIFICATION

Model VSE-15D-6
Frequency range 0.1 to 70Hz
Mode of operation Horizontal, Vertical
Max. measuring range ±0.1m/s
Output Velocity (Low): 100V/m/s, (High): 1000V/m/s

Acceleration: 730mV/degree
Max. Output voltage ±10V
Linearity 0.03% of Full scale
Resolution Approximately 2×10–8m/s2 (2×10–6Gal)
Dynamic range Approximately 140dB
Damping ration h = about 10000%
Calibration coil Sensitivity: 600μA m/s2 (6μA/Gal)

Coil resistance: 550Ω (±20%)
Max. Output voltage ±10V
Power requirements ±15VDC
Current consumption Approximately 15mA
Cross axis sensitivity 0.03G/G
Sensitivity of temperature coefficient 0.01%/℃
Temperature coefficient of zero-shift 0.05%/℃
Temperature range -10℃ to 50℃
Allowable shock 30G (less than 0.1Sec)
Dimension 55 × 69.5 × 72 mm

PRINCIPLE

The principle of servo velocity seismometers is similar to general servo accelerometers, but it adapts the differentiating circuit in the feedback circuit.

The sensitivity of velocity seismometer is determined by the stable elements of the M, R, r, C and G. Therefore, the change in α and the scale factor of amplifier (A) do not affect the characteristics of the velocity seismometer.

This is a good point of servo velocity seismometer, and it is possible to maintain the stable sensitivity and characteristics for a long period.

The specification may change without notification because of the proved product.

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Weight Calculation

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