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SISGEO

RDS Railway Deformation System

InfrastructureGeotechnical Instrumentation

The RDS (Railway Deformation System) is a system designed and developed for the automatic monitoring of railways. RDS consists of a Digital MEMS tiltmeter mounted parallel or transverse to the track. Micro-prisms can be installed on RDS-T gauges to integrate the system with optical monitoring. RDS components are used to monitor settlement, heave, and twist of the track. The system is designed to be used on active tracks to ensure railway safety.

Quantity

Specification

Model	RDS-T: Transverse RDS gauge and RDS-L: Longitudinal RDS gauge
Measuring range	±10° (±5° on request)
Sensor repeatability	0.0013°
Sensor resolution	0.00056°
Sensor mechanical bandwidth	18 Hz
Sensor stability @ 30 days	<0.007°
Sensor accuracy: Lin. MPE Pol. MPE	<± 0.02% FS (±0.020 mm with ±10° range) <± 0.01% FS (±0.010 mm with ±10° range)
Power supply	from 8 to 28 Vdc
Signal output	RS485, Modbus RTU
A/D converter	32 bit, precision 38-kSPS
Average consumption	4.3 mA @ 24 Vdc, 8.0 mA @ 12 Vdc
Temperature operating range	-30° to +70°C
Internal temperature sensor: - measuring range - resolution - accuracy	Embedded on electronic board 40°C to +125°C 0.01 °C ±1°C with temperature range -10°C to +85°C
IP class	IP67