It depends what kind of sensor you mean. There are lots of sensors in trains already... for such things as heat/smoke detectors, doors (which stop the train moving unless the doors are closed, fuel, signal sensors..... etc
Sensors are used to detect things, such as motion, light, or color.
Strain gage based sensors are mostly used.
trains x
Gas turbine engine deals with high temperature and pressure. So it is difficult to use it. However if certain modifications are done in it , it can probably be used in trains. And if this is done the trains would be very high speed. as it is gasturbine engines which powers aeroplanes
train are used for many purposes-it also used for people to go for very long places nowadays
Vandals started placing gum on the train door sensors, leading to malfunctioning doors.
Diesel trains are used for freight and sometimes they're used for passenger trains.
Passenger trains are used to transport passengers.
steam engine trains.
type of sensors used in aeroplanes
light sensors are used in cars, televisions and computers. there are different types of light sensors.
Sensors are used to detect things, such as motion, light, or color.
Japanese Trains
Coal is still used in many steam engines today. Coal is not used on diesel trains or electric trains simply because it is not fuel for them. Electric trains and diesel trains are the most common trains in use, and not trains capable of using coal, because they are more efficent and much less costly to maintain.
why commuters don't used the trains
What type of coal do they use in trains?
strain gauges .