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Difference Between Current Transducers And Sensors


The physical devices, current transducers and sensors are might used by some people interchangeably. These devices are used in numerous electrical and electronic appliances and gadgets. But, people fail to make a difference between current transducers and sensor. Because, Current Transducers are sometimes found in sensors. The main difference between current transducers and sensors is, the sensor is a physical device, that senses a physical quantity and then converts it into signals which can be read by an instrument or the user. The current transducer is also a physical device, that converts one form of energy into an another form. The best example of a current transducer is an antenna. Just Because of it converts electricity to electromagnetic waves. A sensor also converts one form of energy to another form, shows that it senses a physical quantity and converts it into an electrical signal.

Difference between Current Transducer and Sensor:
People get confused with both terms Current Transducers and Sensors, they do not understand why transducers are used in sensors devices. In a multi-operational device, a transducer converts one form of energy to another form and this converted energy is measured to the user for other measurements using sensors. This is mystifying to see contact transducers are being used in sensors for detecting energy levels and then converts them into electrical energy so as to be shown on a screen.

About 20 years ago, the application of the Current Transducers are used in tape heads of cassette players to transfer the magnetic information by direct contact with the magnetic tape. Then, this data was converted into form of electrical signals. These signals were sent to the load speakers and then converted to sound format to listen.

Coming to another type of Current Transducers like immersion and paintbrush transducers. Immersion transducers were used to measure energy in the form of pressure, sound so on. Paintbrush transducers operate in the air and these transducers are also very much similar to the immersion transducers.

The main reason or purpose to use a senor is to convert an energy into a one form which is noticeable by the user. To make this possible, a sensor may contain a transducer as they are capable of converting from one form to another. The simplest example of the current transducers is an LED (Light Emitting Diode) converts light energy into electrical energy. The best example of a sensor is the sensors used in bikes and cars which can detect the touch and activates the sirens. There are also cases when both the physical devices are the similar. For example, a bi-metallic spring is used to measure the changes in temperature and if a pointer is attached to the bi-metallic spring, and may well be the entire sensor.



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