Inertial Measurement System DMS-EGP02 (Dual Antenna GPS)

The DMS-EGP02 has precision gyros along with our dual antenna GPS heading reference system. This makes the inertial measurement unit a fully static and dynamic capable Attitude and Heading Reference System (AHRS) while receiving GPS data.

Features:

  • Solid State, Strapdown System
  • GPS Heading Reference
  • Latitude, Longitude, Altitude Output
  • Low Cost
  • Rugged, High Reliability
  • Vibration Resistant
  • Analog and RS-232 Serial Outputs
  • Two Year Limited Warranty
  • Engineering Support

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Description

Originally developed to meet the needs of automotive testing professionals, the Dynamic Measurement System (DMS) was designed for monitoring the drive and handling characteristics of vehicles. The DMS may be used in almost any application where triaxial angular rate and acceleration data is required. This inertial sensor provides both angular rate and acceleration outputs in analog and digital formats. The DMS features six accelerometer outputs. The X, Y, and Z axis outputs represent the accelerations in the plane of the vehicle body, while the second set of three outputs measure the acceleration aligned with an earth-level coordinate system. This allows forward and lateral acceleration measurements that are essentially free of gravity influences. The triaxial sensor set allows software alignment of sensors, greatly reducing any alignment errors. The serial interface is highly configurable and provides access to almost all operational parameters.

The DMS-EGP02 is designed for vehicle applications where accurate heading is required, but a magnetic compass is infeasible. This sensor is equipped with a dual GPS antenna system that provides heading data even when the vehicle is not is motion. The addition of the GPS antennas also gives vehicle velocity data to the DMS which enhances the unit’s performance during highly dynamic maneuvers such as sharp turns. This makes the DMS-EGP02 inertial gyro sensor a more complete system since it does not require velocity information to be supplied from an external sensor.

The DMS-EGP02 is useful in automotive testing, vehicle dynamics, and marine applications. This sensor can be used as a replacement for the discontinued Watson IMU-E604, and is most useful in applications where strong magnetic fields make heading data from a fluxgate magnetometer unreliable.

Applications

Downloads

Download Spec Sheet (PDF - 108.2 KB)

 

Download Manual (PDF - 180.3 KB)

 

Specifications

Attitude

Range: Bank ±180°
Range: Elevation ±90°
Resolution: 0.02° Binary mode (14 bit)
Analog Scale Factor: 18°/V ±10V Bank; ±5V Elevation
Accuracy: Static ±0.25°
* Accuracy: Dynamic ±0.5%

GPS Heading

Range: 0° – 360°
Resolution: 0.02° Binary mode (14 bit)
Analog Scale Factor: 18°/V ±10V Output
Accuracy: Static 0.5° Based on antenna spacing
* Accuracy: Dynamic or Relative 0.5%

Angular Rate

Range: Roll, Pitch, Yaw ±100°/sec
Resolution: 0.025°/sec Binary mode (14 bit)
Analog Scale Factor: 10°/sec/V ±10V Output
Scale Factor Accuracy: 0.5%
Bias: Roll, Pitch, Yaw < 0.2°/sec (Analog) ±0.02°/sec
Binary mode (14 bit)
Non-Linearity: < 0.1% Full scale range
Bandwidth: 20 Hz
Noise: < 0.03°/sec rms

Acceleration

Range: X, Y, Z ±10g
Range: Fwd, Lat, Vert ±10g
Resolution: 4mg
Analog Scale Factor: 1g/V ±10V Output
Scale Factor Accuracy: 1%
Bias: X, Y, Z < 10mg
Non-Linearity: 0.1% Full scale range
Bandwidth: 3 Hz

GPS Positioning

Range: Latitude ±90°
Range: Longitude ±180°
Range: Altitude 0ft to 21500ft
Resolution: Lat, Long 0.0000013° Binary mode (28 bit)
Resolution: Altitude 2 ft
Accuracy: Lat, Long ±0.6m (with DGPS) ±2.5m (without DGPS)

Environmental

Temperature: Operating -40°C to +85°C
Temperature: Storage -55°C to +85°C
Vibration: Operating 5g rms 20 Hz to 2 KHz
Vibration: Survival 10g rms 20 Hz to 2 KHz
Shock: Survival 500g 10mS ½ sine wave

Electrical

Frame Rate: 71.1 Hz Maximum
Startup Time: Data 5 sec
Startup Time:
Satellite acquisition
5 min Typical
Input Power: 10 to 30VDC 6.6W
Input Current: 540mA @ 12VDC 270mA @ 24VDC
Input Velocity: (Optional) ±10VDC Full scale (±400kph)
Digital Output: RS-232
Analog Output: ±10VDC
Analog Output Impedance: 300 Ohm Per line

Physical

Axis Alignment: < 0.1°
Size: Including
Mounting Flanges
6.5″W x 6.5″L x 3.84″H 16.5 x 16.5 x 9.8 (cm)
Weight: 54oz (3.4 lb) 1530 grams (1.5 Kg)
Connection: RS-232 9 pin female “D” subminiature
Connection: Power /
Analog Outputs
25 pin male “D” subminiature
Connection: Antenna (Qty 2) SMA Antenna cable length: 3.0m
* Using velocity data with GPS mode on.
Actual accuracy can be calculated as the listed percentage multiplied by the change in value over the entire dynamic maneuver.
Acquisition time for GPS units is typical for the contiguous United States. Acquisition time may differ due to interference in your geographic area.
Specifications are subject to change without notice.
This product may be subject to export restrictions. Please consult the factory.

Additional information

Weight 1.5 kg
Dimensions 16.5 x 16.5 x 9.8 cm

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