Thursday, July 18, 2013

Sensors

In every applications sensors transform real world data into electrical signals. 
    
     A sensors is defined as follows: 
A device that produces an output signal for the purpose of sensing of a physical phenomenon. 
sensors are also referred to as transducers. A transducer is a device that converts a signal from one physical form to a corresponding signal that has a different physical form. 
     In a transducer, the quantities at the input level and the output level are different
A typical input signal could be electrical,mechanical,thermal or optical.Sensors are required to monitor the performance of machine and processes using a collection of sensors, one can monitor one or more variable in process. 

      The monitoring devices are generally located near the manufacturing process measuring the surface quality temperature vibrations and flow rate of cutting fluids . Some of the variables in mechatronics system are temperature,speed,position,force,torque and acceleration. 

    Micro sensors could be used to measure flow,pressure or acceleration of various chemical species in environmental and mechanical applications. The resonant micro beams are already being used to sense linear and rotational acceleration. 

No comments:

Post a Comment