3B Scientific Acceleration Sensor, ±25g - Manual

3B SCIENTIFIC® PHYSICS
1
Acceleration Sensor,
±25g U11362
Instruction Sheet
05/08 Hh
1. Safety Instructions
• To avoid permanent damage to the
semiconductor sensor in the small black box,
the maximum acceleration in any direction
must not be allowed to exceed 2000 times the
gravitational acceleration of the earth (2000g).
• Do not allow the sensor element to fall from
any height greater 1.2 m onto a hard surface.
• The
±25g accelerometer may only be used for
educational purposes.
The
±25g accelerometer is not suitable for safety-
related applications.
2. Description
Sensor box with permanently connected
semiconductor accelerometer, which responds to
forces along its X-axis, for measuring the earth’s
gravitational field (acceleration due to gravity) and
acceleration of bodies in general up to ±25g.
The direction in which the gravitational field of the
earth should be aligned (X-axis) is printed on the
accelerometer.
The accelerometer works by a capacitive
measurement principle (g-cell), with in-built
linearised signal processing, low-pass filter,
temperature compensation, and automatic self-
testing.
The sensor box is designed to be detected
automatically by a 3B NETlog
TM unit.
3. Equipment Supplied
1 Sensor box with permanently connected
accelerometer, cable length 2 m
1 Velcro strip, 500 mm long, 20 mm wide, self-
adhesive
1 8-pin miniDIN connecting cable, 60 cm long
1 Instruction sheet for U11362
4. Technical Data
Measurement range: 0 to ±245 m/s²
Sensor type: Capacitive
semiconductor
sensor
Sensitivity: Typically 50 mV/g
Non-linearity: Max. ±1% of total
measurement range
Resolution: 0.2 m/s²
Bandwidth: Typically 400 Hz
Accelerometer fixing hole: Max. 3 mm diam.