Over the last few years these sensor have been able to drastically reduce the failure rates of many transport companies when installed in the critical environments described above. Speed sensors with pulse doubling Customers often want a higher number of pulses per revolution than can be achieved in the space available and with the smallest module m = 1. An industry standard flange-compatible speed sensor has been developed for such applications that generates two pulses for each tooth of the wheel. This makes it possible to achieve 600 pulses per revolution with a target wheel module m = 1 and a diameter of 300mm. These speed sensors are currently being tested at a major system integrators. References http://www.selectron.ch/downloads/kataloge/normen-EN-50-155/Standard-EN-50155.pdf External links Continental Automotive Systems SafelyThere - Continental Automotive Systems Vehicle Safety Equipment "Drive Safer America" Wheel speed sensor installation/removal procedure Encoders for rail road vehicles Sensors for rail road vehicles Categories: Automotive safety technologies | Railway safety | Speed sensorsHidden categories: Articles lacking sources from April 2009 | All articles lacking sources