Mechanical-electrical transducer

Claim 2

A mechanical-electrical transducer for the simultaneous contactless and reaction-free determination of at least three mutually independent components of displacement of an object coupled to the transducer, including two translational and one rotational component, comprising an oblong ferrite body attached to the object, and at least three different signal sources inductively coupled to the ferrite body and spatially distributed with respect to the ferrite body, wherein said signal sources comprise at least three spatially separated polepieces each of which is equipped with at least one secondary winding of a differential transformer having a primary winding connected to an alternating current supply, and including an electrical analog circuit having at least three difference amplifier and demodulator means, said circuit effecting at least three mutually independent combinations of the outputs of the said at least three spatially separated polepieces to provide at least three mutually independent signals corresponding in sign and magnitude to the said components of displacement of an object from a determined initial position.

Claim 3

A mechanical-electrical transducer for the simultaneous contactless and reaction-free determination of at least three mutually independent components of displacement of an object coupled to the transducer, including two translational and one rotational component, comprising an oblong ferrite body attached to the object and at least three different signal sources inductively coupled to and spatially distributed with respect to the ferrite body, wherein said signal sources comprise at least three spatially separated polepieces each of which equipped with at least one choke winding of a differential choke and including an analog circuit which effects at least three mutually independent combinations of the impedances, or impedance-dependent alternating current signals, of the choke windings of the said at least three spatially separated polepieces to provide the desired mutually independent components of displacement directly, at least three alternating current resistance bridges, each of which comprises a choke winding from each of the said polepieces and demodulator means for the at least three outputs of the bridge circuit said outputs representing in sign and magnitude the desired components of displacement.

Claim 4

A mechanical-electrical transducer for the simultaneous contactless and reaction-free determination of at least three mutually independent components of displacement of an object coupled to the transducer, including two translational and one rotational component, comprising an oblong ferrite body attached to the object and at least three different signal sources inductively coupled to and spatially distributed with respect to the ferrite body, wherein said signal sources comprise at least three spatially separated polepieces each of which equipped with at least one choke winding of a differential choke and including an analog circuit which effects at least three mutually independent combinations of the impedances, or impedance-dependent alternating current signals, of the choke windings of the said at least three spatially separated polepieces to provide the desired mutually independent components of displacement directly, at least three alternating current resistance bridges, each of which comprises a choke winding from each of the said polepieces and demodulator means for the at least three outputs of the bridge circuit said outputs representing in sign and magnitude the desired components of displacement.

Claim 5

A mechanical-electrical transducer for the simultaneous contactless and reaction-free determination of at least three mutually independent components of displacement of an object coupled to the transducer, including two translational and one rotational component, comprising an oblong ferrite body attached to the object and at least three different signal sources inductively coupled to and spatially distributed with respect to the ferrite body, wherein said signal sources comprise at least three spatially separated polepieces each of which equipped with at least one choke winding of a differential choke and including an analog circuit which effects at least three mutually independent combinations of the impedances, or impedance-dependent alternating current signals, of the choke windings of the said at least three spatially separated polepieces to provide the desired mutually independent components of displacement directly, an electrical analog circuit having at least three difference amplifiers and demodulator means, said circuit effecting at least three mutually independent combinations of the outputs of said at least three spacially separated polepieces to provide at least three mutually independent signals corresponding in sign and magnitude to the said components of displacement of said object from a determined initial position.

Claim 6

A mechanical-electrical transducer for the simultaneous contactless and reaction-free determination of at least three mutually independent components of displacement of an object coupled to the transducer, including two translational and one rotational component, comprising an oblong ferrite body attached to the object and at least three different signal sources inductively coupled to and spatially distributed with respect to the ferrite body, wherein said signal sources comprise at least three spatially separated polepieces each of which equipped with at least one choke winding of a differential choke and including an analog circuit which effects at least three mutually independent combinations of the impedances, or impedance-dependent alternating current signals, of the choke windings of the said at least three spatially separated polepieces to provide the desired mutually independent components of displacement directly, an electrical analog circuit having at least three difference amplifiers and demodulator means, said circuit effecting at least three mutually independent combinations of the outputs of said at least three spacially separated polepieces to provide at least three mutually independent signals corresponding in sign and magnitude to the said components of displacement of said object from a determined initial position.

Claim 7

A transducer for the determination of mutually independent components of object translation and rotation in a single two-dimensional plane as claimed in claim 1 wherein the differential transformer comprises a central polepiece which is equipped with the primary winding and symmetrically surrounded by four outer polepieces, each of which is equipped with either one or three of said secondary windings.

Claim 8

A transducer for the determination of three mutually independent components of object translation and rotation in a single two-dimensional plane as claimed in claim 2 wherein the differential chokes consist merely of four of said polepieces, each equipped with either one or three choke windings.

Claim 9

A transducer for six mutually independent components of object translation and rotation in a three-dimensional space as claimed in claim 1 in which said ferrite body is anisometric and comprising two in-phase excited differential transformers located on opposite sides of said ferrite body, the corresponding polepieces of said transformers being aligned opposite each other and equipped with either one or six signal windings.

Claim 10

A transducer for six mutually independent components of object translation and rotation in a three-dimensional space as claimed in claim 2 in which said ferrite body is anisometric and comprising two non-excited differential chokes located on opposite sides of the ferrite body, with the corresponding polepieces aligned opposite each other and equipped with one or six signal windings.