It detect events or changes in its environment and then provide a corresponding output.
it can usually be found mounted to the timing cover sometimes it may be mounted at the rear or the side of the engine sometimes the crankshaft position sensor measures the speed of the clutch flywheel to determine the speed of the crankshaft in these cases the sensor is mounted to the bell housing of the transmission in the broadest definition a sensor is an object whose purpose is to detect events or changes in its environment and then provide a corresponding output a sensor is a type of transducer sensors may provide various types of output but typically use electrical or optical signals for example a thermocouple generates a known voltage the output in response to its temperature the environment what is a crankshaft position sensor what does it do where is it located the crankshaft position sensor ckp sensor or cps is one of several sensors that keep your engine running smoothly sometimes the crankshaft position sensor measures the speed of the clutch flywheel to determine the speed of the crankshaft in these cases the sensor is mounted to the bell housing of the transmission the android platform provides several sensors that let you monitor the motion of a device two of these sensors are always hardware based the accelerometer and gyroscope and three of these sensors can be either hardware based or software based the gravity linear acceleration and rotation vector sensors  many crankshaft position sensors are a type of electronic sensor known as a hall effect sensor a hall effect sensor produces electricity in when it is exposed to a magnetic field in a crankshaft position sensor a toothed wheel spinning with the crankshaft disrupts the magnetic field sometimes the crankshaft position sensor measures the speed of the clutch flywheel to determine the speed of the crankshaft in these cases the sensor is mounted to the bell housing of the transmission an example of a 1 6 crop factor if a full frame camera were to use a 160mm lens you would get the same picture boundaries from your 100mm lens but not the same zoom factor a closer subject 100mm is 100mm is 100mm your sensor does not magnify your lens sad the part that does hit the crop sensor is exactly the same image as over in the full frame sensor camera that is why and how people say that the equivalent value of a 50mm lens on a crop sensor body is equivalent to a 80mm lens on a full frame sensor camera introduction an abs anti lock braking system is an enhanced braking system which is commonly found in newer automobiles an anti lock brake sensor or abs sensor is a type of tachometer that measures the rotational speed of a wheel and passes it to the car s engine control module ecm the abs sensor is also called the wheel speed sensor or abs brake sensor the abs sensor usually consists of a toothed ring and a magnet enclosed within a coil the contact between the ring and the magnet induces an electric field due to which a signal is generated this signal is then transformed into a digital signal and sent to the abs controller sensors are sophisticated devices that are frequently used to detect and respond to electrical or optical signals a sensor converts the physical parameter for example temperature blood pressure humidity speed etc into a signal which can be measured electrically  a sensor is a device that detects and responds to some type of input from the physical environment the specific input could be light heat motion moisture pressure or any one of a great number of other environmental phenomena 
http://www.1aauto.com/content/articles/what-is-a-crankshaft-position-sensor-and-where-is-it-located https://en.wikipedia.org/wiki/Sensor http://www.1aauto.com/content/articles/what-is-a-crankshaft-position-sensor-and-where-is-it-located https://developer.android.com/guide/topics/sensors/sensors_motion.html http://www.1aauto.com/content/articles/what-is-a-crankshaft-position-sensor-and-where-is-it-located http://digital-photography-school.com/crop-factor-explained/ http://www.buyautoparts.com/howto/what-is-an-abs-sensor.htm http://www.engineersgarage.com/articles/sensors http://whatis.techtarget.com/definition/sensor
explain what a sensor does