Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) There are mainly two types of proximity inductance transducers. Another transducer for finding the linear displacement is the Linear Motion Variable Inductance Transducer. VARIABLE-INDUCTANCE TRANSDUCERS • An inductive electromechanical transducer is a transducer which converts the physical motion into the change in inductance. 1. This type of transducer is used for finding the linear displacement in terms of voltage or other digital parameters. RVITs have a solid track-record for reliable operation in tough conditions. Transducer – The device which converts the non-electrical quantity into an electric quantity is known as the transducer. A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. 5. Variable Inductive Transducers . Transducer and Inverse Transducer. It is done by calculating the change in inductance in a single coil according to the variation in inductance. • Inductive transducers are mainly use for displacement measurement • In such a Transducer the pressure change causes change in the inductance of the sensing element. LVDT (Linear Variable Differential Transformer) An LVDT, or Linear Variable Differential Transformer, is a transducer that converts a linear displacement or position from a mechanical reference (or zero) into a proportional electrical signal containing phase (for direction) and amplitude information (for distance). A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. Rotary Variable Inductive Transducers (RVITs) are a form of position sensor for non-contact rotary measurement. A schematic of the linear motion variable inductance transducer is shown below. The transducer is used with the carrier bridge amplifiers types IT 1-5-51 and IT 1-6-51, which operate at a carrier frequency of 2000 c. The cutoff frequencies of the transducer are 70 c for the + or - 3-g range and 100 c for the + or - 9-g range. The mechanical movement to be measured is used to change this air gap, thus changing the reluctance, or opposition, to the production of a magnetic field in the circuit. Operating from a single rail DC voltage supply, they provide either a ±3VDC (RVIT 15-60) or 4-20mA (RVIT 15-120i) output, over a 120 degree angular sensing range. Prior art keywords plunger transducer ceramic sleeve core Prior art date 1989-12-08 Legal status (The legal status is an assumption and is not a legal conclusion. This transducer is used for displacement measurement. : …externally energized transducer, called the variable-reluctance type, is one in which the magnetic circuit is broken by an air gap. 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