SV 151

WHOLE BODY MEMS ACCELEROMETER

The SV 151 is a low cost tri-axial accelerometer based on MEMS transducer technology. Fully complying with ISO 8041, it has a built-in TEDS memory that keeps information about the accelerometer sensitivity that is automatically transferred to the vibration analyser being used.
A full ISO8041 in-situ check for before and after measurement is possible using the SV111 portable vibration calibrator and dedicated SA40* adaptor.

The SV 151 accelerometer is designed for SEAT transmissibility measurements. Its small size enables the SV 151 to be placed on the vehicle floor accurately and according to ISO2631-1 requirements.
The SV151 is a tri-axial accelerometer enabling SEAT transmissibility measurements to be measured in all 3 axes simultaneously. It can be used with any instrument that supports MEMS technology such as the SV 106 multichannel human vibration analyser.


SV 151 Whole-body Triaxial Accelerometer Specification

Performance

Number of axis 3
Sensitivity (± 5 %) 5.81 mV/ms-2 at 15.915 Hz
Measurement range 160 ms-2 PEAK
Frequency response 0 Hz ÷ 500 Hz
Resonant frequency 5.5 kHz (MEMS transducer)
Electrical noise < 0,066 ms-2 RMS, BL Wb weighting

Electrical

Supply current < 5.0 mA
Supply voltage 3.3 V ÷ 5.5 V
Bias voltage 1,5 V ± 0.1 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 15.5mm x 15.5 mm x 15.5mm
Weight 20 grams (without cable)

Accessories

Calibration adapter SA 155 (option)

Datasheet