US3902689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for measuring the distance between two successive objects
Assignee: Airbus Defence and Space GmbH
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Filing: 1974-02-13
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Granted: 1975-09-02
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Expires: 1994-02-13
Abstract
Abstract An arrangement for measuring the distance between two successive track-carried objects which are equipped with a transmitter and a receiver. The transmitter of the forwardmost object transmits a signal which is received by the receiver of the next following object. The signal is transmitted over a line having a predefined signal attenuation factor so that the magnitude of the signal received by the receiver in the next following object is indicative of the distance to the forwardmost track-carried object. A single U-shaped core and windings associated therewith is utilized to transmit the signal into the line in the transmitter as well as receive the signal from the line in the receiver.
Inventors
- 👤 Walter Hermann
- 👤 Peter Kraus
- 👤 Burkhart Kuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:20
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/16; B61L3/22; B61L3/225
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
189 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following object, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said electrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes and electrical compensation means for electrically compensating for effects on said electrical signal caused by either a lateral displacement or a vertical displacement between said electrical line and said coil whereby said electrial signals from said transmitter and said electrical signals to said receiver will be uneffected by said lateral or vertical displacements.
Claim 2
Dependent Claim
189 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following object, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said electrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes and electrical compensation means for electrically compensating for effects on said electrical signal caused by either a lateral displacement or a vertical displacement between said electrical line and said coil whereby said electrial signals from said transmitter and said electrical signals to said receiver will be uneffected by said lateral or vertical displacements.
Claim 3
Dependent Claim
46 words
An arrangement according to claim 1, wherein said electrical line having at least two conductors is a line composed of two conductors, wherein each frame core is arranged approximately parallel to the line and with its 2 pole shoes symmetrical to the plane of the line.
Claim 4
Dependent Claim
58 words
An arrangement according to claim 1, wherein said electrical Line having at least two conductors is a line composed of three conductors which are parallel to one another and are coplanar, wherein each frame core is arranged approximately parallel to the line and with its two pole shoes symmetrical to the vertical longitudinal central plane of the line.
Claim 5
Dependent Claim
56 words
An arrangement according to claim 1, wherein said elelctrical compensating means comprises at least one auxiliary coil located between the 2 pole shoes of each frame core and has conductor windings which extend longitudinally of the frame core, through which auxiliary core flows preferably current from the same sources as flows through said first mentioned winding.
Claim 6
Dependent Claim
50 words
An arrangement according to claim 1, wherein said electrical compensating means comprises at least one auxiliary coil located in the zone of the 2 pole shoes with conductor windings extending in longitudinal direction of the frame core, said conductor winding sensing changes of the leakage flux between the pole shoes.
Claim 7
Dependent Claim
45 words
An arrangement according to claim 1, wherein the spacing between the pole shoes of each frame core and at least one stationary rail of ferromagnetic material functioning as a magnetic return-circuit for the coils, define air gaps, said rail extending approximately parallel to the line.
Claim 8
Dependent Claim
27 words
An arranagement according to claim 6, wherein the rail is arranged symmetrical to the vertical longitudinal central plane of the line which extends through the air gaps.
Claim 9
Dependent Claim
19 words
An arrangement according to claim 6, wherein the rail is at the same time the carrier of the line.
Claim 10
Dependent Claim
17 words
An arrangement according to claim 7, wherein the pole surfaces of the pole shoes are constructed concavely.
Claim 11
Dependent Claim
197 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following object, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said electrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes and a stationary return-circuit defined by two rails which are approximately L-shaped in cross section and are arranged symmetrical to the plane of the line, said rails having mutually adjacent ends which define an air gap therebetween through which extends the line and defining by their own ends and the spaced pole shoes respectively of each frame core other air gaps.
Claim 12
Dependent Claim
197 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following object, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said electrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes and a stationary return-circuit defined by two rails which are approximately L-shaped in cross section and are arranged symmetrical to the plane of the line, said rails having mutually adjacent ends which define an air gap therebetween through which extends the line and defining by their own ends and the spaced pole shoes respectively of each frame core other air gaps.
Claim 13
Dependent Claim
31 words
An arrangement according to claim 10, wherein the legs of the rails which are directed toward the line are arranged each symmetrically to the vertical longitudinal central plane of the line.
Claim 14
Dependent Claim
29 words
An arrangement according to claim 10, wherein the legs of the rails which are directed toward the pole shoes have each a smaller width than the associated pole shoe.
Claim 15
Dependent Claim
175 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following objects, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said elEctrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes, each of said pole shoes having a pole surface, at least one conductor loop on each pole surface extending in its longitudinal direction, the distance between two of said conductors being less than the width of the pole surface.
Claim 16
Dependent Claim
175 words
In an arrangement for measuring the distance between two successive track-carried objects each being equipped with a transmitter and a receiver by transmitting an electrical signal of a defined magnitude, said signal being sent out by a transmitter of the forward object to a receiver of the next following objects, said receiver having a defined sensitivity, said transmitter and receiver being coupled through an electric line having at least two conductors which are parallel to one another and conductively connected over the entire length by a foil of lesser conductivity, the improvement comprising a coil mounted on and movable with said object for coupling said transmitter and receiver with said elEctrical line, said coil comprising a winding which is distributed symmetrically only on one U-shaped frame core of ferromagnetic material having a pair of pole shoes, each of said pole shoes having a pole surface, at least one conductor loop on each pole surface extending in its longitudinal direction, the distance between two of said conductors being less than the width of the pole surface.
References Cited (Backward Citations)
US1942138A
Cited
US3836770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |