WHAT DO YOU MEAN BYTRANSDUCER????•A transducer is a device that convertsone form of energy to another.• While the term transducer commonlyimplies the use of a sensor/detector, anydevice which converts energy can beconsidered a transducer. Transducers arewidely used in measuring instruments.
WHAT IS INDUCTIVETRANSDUCER?????In inductive transducer, magneticcharacteristics of an electric circuitchanges due to motion of objectA simple type of displacement sensor is thevariable inductance type wherein thevariation of inductance as a function ofdisplacement is achieved either by variationin mutual inductance or self inductance
:•A voltage signal is generated in thetransducer, because of relative motion of theconductor and a magnetic field. EXAMPLE: 1. ELECTRODYNAMIC 2. ELECTROMAGNETIC 3. EDDY CURRENT TYPE ,etc.
:Also called as external power source oftransducers, in which an external source isneeded to energise coils, the inductance ofwhich would change due to motion of theobject. 1. LVDT type 2. Air gap type 3. Attachment type inductance transducer, etc.
Where, f=excitation signal frequency Ip=primary current Np=nos of turns in primary Ns=nos of turns in secondary b= width of primary coil w= width of secondary coil x= core displacement r0= outer radius of the coil ri = inner radius of the coil
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