Ladder winding method for transformer type sensor coil

Abstract

The invention provides a ladder winding method for a transformer type sensor coil. The ladder winding method comprises the following steps of: wrapping the outer surface of a framework winding region for two circles by using non-alkali glass fiber cloth dipped with insulating varnish; then drying; flatly winding an enamel round copper wire at the framework winding region, and brushing the insulating varnish once when one layer of the enamel round copper wire is wound; after the layers of the specified number are flatly wound, continuously winding the enamel round copper wire in a specified region according to requirements, and brushing the insulating varnish once when one layer of the enamel round copper wire is wound; after the winding is completed, wrapping the coil for two circles by using a polytetrafluoroethylene film; then wrapping the coil for two circles by using the non-alkali glass fiber cloth; then binding by using cotton threads; and finally drying. After a sensor is assembled by using the coil wound by the invention, the sensor is mounted on a spout afterburner fuel regulator and is used for completing test run and check test run together with an engine, and special use requirements of the engine can be completely satisfied.

Description

Technical field [0001] The invention relates to the technical field of transformer-type sensors, in particular to a method for winding a transformer-type sensor coil in steps. Background technique [0002] Transformer type sensor is mainly used for displacement measurement. Its working principle is composed of two or more inductance coils with iron core. The coupling between the primary and secondary coils can change with the relative movement between the armature or the two coils. , That is, the measured displacement can be converted into the change of the mutual inductance of the sensor. When the voltage with the appropriate frequency excites the primary winding, the output voltage of the secondary coil will change with the change of the mutual inductance, thereby converting the measured displacement into a voltage output. A certain type of linear displacement sensor is a transformer type sensor, which is matched with a certain type of aero engine. It is installed on the nozzle...

AI Technical Summary

Problems solved by technology

A certain type of linear displacement sensor belongs to the transformer sensor, which is matched with a certain type of aero-engine. It is installed on the nozzle and afterburner fuel regulator. During the πt adjustment process, it detects the movement of the πt servo piston and converts the displacement into a corresponding electrical signal and sends it to the The limit regulator requires the output of the sensor to be nonlinear in the working area during the adjustment process, which makes the development of the sensor more difficult, so it is necessary to improve

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