Rugged ±1 g to ±5 g
Uniaxial Accelerometer with Signal Conditioning and Temperature Sensor
Technical Data*
Simplify Acceleration and Temperature Measurements
![[Picture of 13203B Uniaxial Accelerometer]](13200B.gif)
The Summit Instruments 13203B accelerometer includes a temperature
sensor in its small rugged package. The small size and built-in power
regulation allow the 13203B to fit where other accelerometers can't.
A power source of +8 to +30 VDC is all that is required to measure
temperature and ±1 g, ±1.5 g, ±2 g, ±2.5 g, ±3 g,
±4 g, or ±5 g accelerations on each of two axes.
When extra precision is required, the high repeatability of the built-in
temperature allows precise compensation of temperature effects and alignment
data provided on the optional calibration certificate can be used to
compensate for transverse sensitivity and alignment errors.
Tested over the -40 to +85°C temperature range, the accelerometer has
a nominal full scale output swing of ±2 volts. The zero g output
level is nominally ±+2.5 volts. Precise values for each axis are
provided on the optional calibration certificate. Custom versions of
the 13203B can be provided for applications which require different
range and/or bandwidth.
Features and Benefits
- High Accuracy and Linearity over Wide Temperature Range
The voltage output for the 13203B is directly proportional to the
acceleration along the axis. The DC-coupled output is fully scaled,
referenced, and temperature compensated. Accuracy is improved by minimizing
variations due to temperature and aging effects, resulting in a sensor
that is more stable over temperature than piezoelectric or piezoresistive
devices. Critical applications can use the built-in temperature sensor
to compensate for residual temperature effects.
- Calibration Certificate
Each 13203B can be supplied with an optional calibration certificate
listing gain, offset, and on-axis and transverse alignment parameters
needed to ensure rapid and efficient system implementation. The alignment
data can be used to compensate the measured values if needed.
- Self-Test on Digital Command
A TTL-compatible self-test input causes a simulated acceleration to
be injected into the accelerometer to verify channel integrity.
- Small Size
Complete conditioned uniaxial accelerometer in less than a cubic inch.
- Built-in Power Supply Regulation
Unregulated DC power from +8 to +30 volts is all that is required
to measure accelerations. The 13203B is ideal for automotive applications
with the ability to survive both continuous reverse battery to -20V
and load dump transients to +60V.
- Easy installation
Built-in terminal block or cable with 9-pin connector makes it easy
to wire the 13203B. Two through holes and four tapped holes simplify
mounting.
- Suitable for Harsh Environments
The 13203B is robust and can be used in harsh environments. The unit
will survive 500 g powered and 1000 g unpowered.
Specifications
Ta = Tmin to Tmax, 8 <= Vs <= 30 V, Acceleration = 0 g, unless otherwise noted.
Parameter Min Typ Max Units Conditions/Notes
Range
Measurement Full Scale ±1 ±5 g Must specify via -Rnnn
Shock survival, powered -500 +500 g Any axis for 0.5 ms
Recovers on power cycle
Shock survival, unpowered -1000 +1000 g Any axis for 0.5 ms
Sensitivity
At 25°C, ±5 g FSR 450¹ mV/g Precise values on
-C001 cal certificate
Drift Tmin to Tmax ±0.5 % % of sensitivity at 25°C
Zero G Bias Level
At 25°C 1.875 3.125 V Precise values on
-C001 cal certificate
Drift Tmin to Tmax ±0.2 g Repeatable,
can be compensated
Alignment Precise values on
-C001 cal certificate
Deviation from ideal axes ±2.0 ±3.0 degrees Can be compensated
Transverse Sensitivity 0.25 % Inherent sensor error,
excluding misalignment
Nonlinearity 0.2 % FSR Best fit straight line
Upper Cutoff Frequency 4.6 10000 Hz ±10% Must specify -Bnnn
Noise
Density 0.225 0.325 mg 4 Hz to 1 kHz
sqrt(Hz)
Amplitude DC to 100Hz 2.25 mg rms
Self Test Input Impedance 30 50 kOhm To ground
Temperature Sensor Precise values on
-C002 cal certificate
Sensitivity 8 mV/°K Vt at -40°C = 1.92V nom;
Vt at +85°C = 3.16V nom
+25°C Bias Level 2.4 2.6 V
Outputs
Voltage Swing 0.05 4.95 V Iout = ±0.5 mA
Capacitive Drive Capability 1000 pF
Power Supply (Vs)
Input voltage limits -20 +60 V -20V continuous,
>30V if <100ms,duty <1%
Input voltage - operating +8 +30 V
Input current 6 9 mA No load, quiescent
Rejection Ratio 80 120 dB DC
Temperature Range (Ta) -40 +85 °C Terminal block -T000
rated to -30°C
Mass 35 grams Precise value on
-C001 cal certificate
¹Scale linearly with range option Rnnn.
Mechanical
![[13203B Uniaxial Accelemeter Dimensions]](1320XBM.gif)
Connections
![[13203B Uniaxial Accelemeter Connector]](2320XBC.gif)
Pin 1 2 3 4 5 6 7 8 9
Signal Unused Signal- T+ +5VOut A1+ Signal- SelfTest +Vs Gnd
Wire Brown Red Orange Yellow Green Blue Violet Grey White
13203B
Data Sheet
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