Train Measurement System

TMS-E232

Description:

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Designed specifically with the rail industry in mind, the Train Measurement System (TMS) features an extensive sensor suite inside of an extremely rugged package. With two angular rate sensors and a single axis accelerometer, the TMS is an ideal choice for any application measuring, roll, yaw, superelevation, truck hunting, or track irregularities.

One of the cornerstones of the TMS is its rugged design. The gyros used in this package are isolated from vibration internally, and the sensor inputs are processed by an on-board microprocessor. This allows the TMS to be mounted directly to the truck underneath a rail car or locomotive. The durable enclosure that houses the TMS electronics is designed to allow for mounting in such a demanding environment.

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Applications:

The TMS-E232 is used in the rail industry for track testing and high speed train tilt testing. This sensor is also useful on vehicles when the required mounting location is in an extremely harsh environment.

Features:

	• Solid State, Strap Down System
	• Rugged, High Reliability
	• Vibration Resistant
	• Analog Superelevation (Roll Angle) Output
	• RS-232 Serial Data Outputs
	• Proven Operation on Head Truck Assembly (Both Diesel and Electric)
	• No Moving Parts - No lubrication or Service Requirements
	• Two Year Limited Warranty
	• Engineering Support

Train Measurement System TMS-E232 Specifications
Attitude
	Range: Bank (Superelevation)	±20°
	Resolution:	0.02°	Binary mode (14 bit)
	Analog Scale Factor:	2°/V	±10V Output
	Accuracy: Static	±0.3°
*	Accuracy: Dynamic	±2%
Angular Rate
	Range: Roll, Yaw	±50°/sec
	Resolution:	0.02°/sec	Binary mode (14 bit)
	Scale Factor Accuracy:	2%
	Bias: Roll, Yaw	< ±0.1°/sec
	Non-Linearity:	< 0.03%	Full scale range
	Bandwidth:	20 Hz
Acceleration
	Range: Lateral	±10g
	Resolution:	4mg
	Scale Factor Accuracy:	1%
	Bias: Lateral	< ±10mg
	Non-Linearity:	< 1%	Full scale range
	Bandwidth:	20 Hz
Environmental
	Temperature: Operating	-40°C to +70°C
	Temperature: Storage	-50°C to +85°C
	Vibration: Operating	5g rms	20 Hz to 2 kHz
	Vibration: Survival	10g rms	20 Hz to 2 kHz
	Shock: Survival	1000g	10mS ½ sine wave
Electrical
	Frame Rate:	71.1 Hz	Maximum
	Startup Time: Data	5 sec
	Startup Time: Fully operational	10 sec
	Input Power:	10 to 30VDC	6W
	Input Current:	500mA @ 12VDC	250mA @ 24VDC
†	Input Velocity:	±10VDC	Full scale (±400kph)
	Digital Output:	RS-232
	Analog Output:	±10VDC
	Output Impedance:	300 Ohm	Per line
Physical
	Size: Including Mounting Flanges	7.50"W x 8.25"L x 3.20"H	19 x 21 x 8.1 (cm)
	Weight:	240oz (15lb)	6800 grams (6.8Kg)
	Connection:	MS-27656T-15B-19P	MIL-C-38999 Series1
	Life:	> 100,000 Hours MTBF
*	Assumes accurate velocity data. Actual accuracy can be calculated as the listed percentage multiplied by the change in value over the entire dynamic maneuver.
†	Velocity input is required, see table below.
	Specifications are subject to change without notice.

TMS-E232 Input Velocity Formats
Format	Specifications
Analog:	±400 kph; 40 kph / volt
Binary RS-232:	±400 kph; 14 bit (See product manual for more details)
GPS RS-232:	NMEA 183; VTG format (See product manual for more details)
Pulse Counter:	1000 to 6000 pulses per revolution; 0.5 to 2 meter diameter wheel