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SV 38V Seat Accelerometer

The SV 38V Seat Accelerometer is a triaxial Whole-Body seat accelerometer based on MEMS transducers dedicated to SV 106A instrument for Human Vibration measurements according to ISO 2631-1 requirements both on a seat pad or seat back.

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The SV 38V uses low voltage and consumes much less energy than IEPE accelerometers extending battery life time of SV 106A instrument. The built-in TEDS memory stores information about the accelerometer sensitivity that is automatically transferred to the SV 106A vibration analyser helping to avoid configuration errors. A full ISO 8041 in-situ calibration check for before and after measurement is possible using the SV 111 portable vibration calibrator.

Features include:

Meets ISO 8041 and ISO 2631-1
Dedicated to SV 106
Low-power consumption
Robust technology
TEDS memory
Low price

SV 38V Whole-body Triaxial Accelerometer Specification

Performance:
Number of axis	3
Sensitivity (± 5 %)	50 mV/ms^-2 at 15.915 Hz, HP1
Measurement range	0.01 ms^-2 RMS ÷ 50 ms^-2 PEAK
Frequency response	0.1 Hz ÷ 125 Hz
Resonant frequency	5.5 kHz (MEMS transducer)
Electrical noise	< 230 μV RMS, HP1 weighting

Electrical:
Supply current	< 5.0 mA
Supply voltage	5.2 V ÷ 16 V
Bias voltage	2.5 V ± 0.05 V
Output impedance	51 Ohms
Charge/discharge time constant	30 sec. typ
TEDS memory	installed (power supply pin)

Environmental Conditions:
Maximum vibration	100 000 ms^-2 shock survival for MEMS
Temperature coefficient	<+/-0.02 %/°C
Temperature	from -10°C to +50°C
Humidity	up to 90 % RH, non-condensed

Physical:
Sensing element	MEMS
Cable	integrated 1.4 meters
Connector	LEMO 5-pin plug (SV 106 compatible)
Dimensions	236 mm diameter; thickness from 3.6 mm to 12 mm
Weight	550 grams (including cable and cushion)

Accessories:
Calibration adaptor	SA 38 (option)

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.

SV 38V Datasheet