US 12,442,663 B2
Displacement sensor for contactless measurement of a relative position, production method for a magnetic field sensor arrangement and magnetic field sensor
Eric Hoffmann, Schwetzingen (DE); Simon Scherner, Speyer (DE); Oliver Steeg, Lampertheim (DE); and Jochen Zachow, Glashutten-Oberems (DE)
Assigned to TE Connectivity Germany GmbH, Bensheim (DE)
Filed by TE Connectivity Germany GmbH, Bensheim (DE)
Filed on Mar. 26, 2019, as Appl. No. 16/364,706.
Application 16/364,706 is a continuation of application No. PCT/EP2017/074266, filed on Sep. 25, 2017.
Claims priority of application No. 10 2016 218 530.6 (DE), filed on Sep. 27, 2016.
Prior Publication US 2019/0219421 A1, Jul. 18, 2019
Int. Cl. G01D 5/14 (2006.01); G01D 11/24 (2006.01); G01D 21/00 (2006.01)
CPC G01D 5/145 (2013.01) [G01D 11/245 (2013.01); G01D 21/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A system, comprising:
a magnetic field source generating a magnetic field; and
a magnetic field sensor arrangement adapted to contactlessly detect a relative position of the magnetic field source with respect to the magnetic field sensor arrangement, the magnetic field source movable relative to the magnetic field sensor arrangement, the magnetic field sensor arrangement includes a first magnetic field sensor adapted to generate a first position signal and a second magnetic field sensor adapted to generate a second position signal, wherein the first magnetic field sensor is configured as a master and the second magnetic field sensor is identical to the first magnetic field sensor, and wherein each of the first magnetic field sensor and the second magnetic field sensor has a magnetic field probe adapted to detect a magnetic flux density of the magnetic field, the magnetic field probe of each of the first magnetic field sensor and the second magnetic field sensor detecting a same plurality of components of the magnetic field, each of the first magnetic field sensor and the second magnetic field sensor has an evaluation unit, the evaluation unit of the first magnetic field sensor configured to evaluate an output signal of the magnetic field probe of the first magnetic field sensor and the evaluation unit of the second magnetic field sensor configured to evaluate an output signal of the magnetic field probe of the second magnetic field sensor, and each of the first magnetic field sensor and the second magnetic field sensor has a communication interface for emitting and receiving a plurality of communication signals,
wherein the first magnetic field sensor and the second magnetic field sensor are connected to each other by one or more connecting lines of a data bus formed as part of a leadframe, the leadframe further including an input/output interface, each of the data bus and input/output interface defining their own respective plane and an integral reinforcing bracket defining a second plane not parallel to the plane of the data bus and not parallel to the plane of the input/output interface, and
wherein each of the first magnetic field sensor and the second magnetic field sensor has an output terminal to transmit a first output signal via the input/output interface and a complementary output terminal to transmit a second output signal via the input/output interface, wherein the first output signal and the second output signal are redundant.