There are many different kinds of Sensors/Transducers; Image Sensors, Infrared Sensors, Linear Position Sensors, Magnetic Field Sensors, Other Sensors/Transducers, Pressure Sensors, Proximity Sensors, Reflective Object Sensors, Rotary Position Sensors, and Temperature Sensors. Sensors refer mainly to measuring or detecting by measurement systems. Sensors are a type of Transducer. Sensors detect and the transducers convert energy the process is called transduction.