Dynamic Measurement System

DMS-E604

Description:

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Originally developed to meet the needs of automotive testing professionals, the Dynamic Measurement System (DMS) was designed for instrumenting 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.
This is a microprocessor-based inertial gyro sensor using a 16 bit A/D converter, a 12 bit D/A converter and an RS-232 interface. The analog angular rate gyro outputs have a range of ±100°/sec., and a response better than 25Hz. The analog acceleration outputs provide a range of ±10 g's and can accommodate a maximum pitch angle of ±75°, while accommodating all roll angles. The DMS uses an input of forward velocity to compensate the long term references, allowing the error correction system to work continuously. Other companies manufacture systems which turn off their corrections during high dynamic conditions causing a drift in accuracy over time. The DMS-E604 is much more useful in highly dynamic conditions, and has been designed to provide the best possible combination of reliable data and low cost.

Applications:

DMS is used in automotive testing, pipeline maintenance telemetry, and vehicle dynamics applications.

Features:

	• Solid State, Strapdown System
	• Six Accelerometer Outputs
	• Low Cost, Low Power
	• Rugged, High Reliability
	• Vibration Resistant
	• Analog and RS-232 Serial Outputs
	• Two Year Limited Warranty
	• Engineering Support

Inertial Gyro Sensor DMS-E604 Specifications
Attitude
	Range: Bank	±180°
	Range: Elevation	±75°
	Resolution:	0.02°	Binary mode (14 bit)
	Analog Scale Factor:	18°/V	±10V Output
	Accuracy: Static	±0.25°
*	Accuracy: Dynamic	±2%
Angular Rate
	Range: Roll, Pitch, Yaw	±100°/sec
	Resolution:	0.01°/sec	Binary mode (14 bit)
	Analog Scale Factor:	10°/sec/V	±10V Output
	Scale Factor Accuracy:	1%
	Bias: Roll, Pitch, Yaw	< ±0.02°/sec
	Non-Linearity:	< 0.03%	Full scale range
	Bandwidth:	20 Hz
Acceleration
	Range: X, Y, Z	±10g
	Range: Forward, Lateral, Vertical	±10g
	Resolution:	4mg
	Analog Scale Factor:	1g/V	±10V Output
	Scale Factor Accuracy:	1%
	Bias: X, Y, Z	< ±5mg
	Non-Linearity:	< 1%	Full scale range
	Bandwidth:	20 Hz
Environmental
	Temperature: Operating	-30°C to +60°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:	71.1Hz	Maximum
	Startup Time: Data	5 sec
	Startup Time: Fully operational	10 sec
	Input Power:	10 to 30VDC	3.5W
	Input Current:	291mA @ 12VDC	146mA @ 24VDC
	Input Velocity: (Optional)	±10VDC	Full scale (±400kph)
	Digital Output:	RS-232
	Analog Output:	±10VDC
Physical
	Axis Alignment:	< 0.1°
	Size: Including Mounting Flanges	6.5"W x 6.5"L x 3.00"H	16.5 x 16.5 x 7.6 (cm)
	Weight:	51oz (3.2lb)	1450 grams (1.4Kg)
	Connection: RS-232	9 pin female "D" subminiature
	Connection: Power / Analog Outputs	25 pin male "D" subminiature
*	Assumes accurate velocity data. Actual accuracy can be calculated as the listed percentage multiplied by the change in value over the entire dynamic maneuver.
	Specifications are subject to change without notice.

Dynamic Measurement System DMS-E604 Dimensions