SU903694A1 - Transformer-type displacement transducer - Google Patents

Description

one

The invention relates to a measuring technique and can be used, in particular, to measure displacements.

A transformer converter is known, comprising a receiving and exciting windings and a core. The output voltage of the output winding varies from + Uyy to + Uy, Tc, 5 and has a nonlinear characteristic Cl. A transformer displacement transducer is also known that contains a Ш-shaped magnetic circuit, excitation cathode, a moving measuring coil and one or more Fixed Offset Fixed Coils zero connected in series and counter with the measuring coil 12.

Converters have insufficient sensitivity and linearity limits. Errors are associated with the closure of the measuring coil on

output device through bias coil.

The purpose of the invention is to improve the measurement accuracy and extend the linearity limits.

This goal is achieved by the fact that in a transformer displacement transducer containing an W-shaped magnetic conductor with an excitation coil, located on its middle rod, a stigeni coil and a moving measuring coil, an W-shaped magnetic conductor is closed, the movable measuring coil is located on the closing rod, the coil The bias is located on the side rod and is electrically connected to the excitation coil.

In the drawing a schematic representation of the proposed device.

The transformer displacement transducer comprises an W-shaped closed magnetic circuit 1, a coil 2, an excitation, a bias coil 3 on the side rod and a movable measuring coil 4. When the device is in operation, the displacement member is rigidly connected by a measuring coil. Coil 3 Smacene provides offset O and the use of the entire working range. The application of the invention allows measurements to be performed with increased accuracy over an extended range of lines.

Claims (2)

1. For the UK 1462621I, cl. G 01 B 7/02, 1976. 2. USSR author's certificate number 127923, cl. G 08 C 9/00, 1959. 4 neither, located on its middle rod, bias coil and movable measuring coil, characterized in that, in order to improve measurement accuracy and extend the limits of linearity, the W-shaped magnetic circuit is filled with a closed, movable measuring the coil is located on the closing rod; the bias coil is located on the side rod and is electrically connected to the excitation coil.