Transducers
AssigneeTioxide Group Limited
InventorWilliam Ganderton
Life of this patent
Estimating the term…
Abstract
A transducer having a primary coil and at least one secondary coil wound on a hollow support with a number of electrically conducted links axially spaced along the secondary coil with the links connecting spaced turns of the secondary coil so that the transducer when in use has an output of desired form. The transducer is particularly useful for producing an output voltage from which the position of the core and anything connected to it can be deduced.
Claims23
A transducer comprising a support member having a hollow opening therein for receiving a movable core, said support member having mounted thereon a primary coil connectable to a source of alternating electric current, a secondary coil mounted around the primary coil, a plurality of electrically conductive links axially spaced along the length of the secondary coil each link connecting spaced turns of the secondary coil and the ends of the secondary coil being connectable to output means responsive to the electric current induced in said secondary coil to generate an output voltage having predetermined characteristics, whereby the number and position of said electrically conductive links in said secondary coil determine said characteristics of said output voltage.
A transducer comprising a hollow support member having mounted thereon a primary coil connectable to a source of alternating electric current, a secondary coil mounted around the primary coil, a plurality of electrically conductive links axially spaced along the length of the secondary coil, each link connecting spaced turns of the secondary coil, output means responsive to the electric current induced in said secondary coil to generate a substantially linear output voltage and a movable core positioned in said hollow support member, whereby the number and position of said electrically conductive links in said secondary coil determines the linearity of said output voltage when said movable core is progressively inserted in said hollow support member.
Dependencies are inferred from the claim text.