# US 2013/0293222 A1 · Sensor Head for an Encoder > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0293222 A1 - Document ID: US20130293222A1 - Status: Published application - Kind: A1 - Application number: 13/887,902 - Filed: 2013-05-06 - Published: 2013-11-07 - Earliest claimed: 2012-05-04 - Assignees: Leine & Linde AB - Applicants: Leine & Linde AB - Inventors: Richard Arnstein; Magnus Larsson - Web page: https://patentgrep.com/patent/US20130293222A1 ## CPC - G01B 7/14: for measuring distance or clearance between spaced objects or spaced apertures (G01B7/30 takes precedence) - G01D 5/34715: {Scale reading or illumination devices} - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ## Abstract A sensor head for an encoder assembly includes a housing and at least two detectors. The sensor head is intended for scanning directly toward a rotatable encoding member positioned on a carrier ring. The carrier ring is intended to be installed on a shaft of a machine. The detectors are arranged on detector strips are displaceably attached to the housing. ## Claims ### Claim 1 A sensor head for an encoder, comprising: a housing; and at least two detectors displaceably attached to the housing. ### Claim 2 (depends on 1) The sensor head according to claim 1, wherein a position of each detector is displaceable in accordance with a dimension of a shaft to which the sensor head is installable. ### Claim 3 (depends on 1) The sensor head according to claim 1, wherein each detector is arranged on a detector strip having a circuit board. ### Claim 4 (depends on 3) The sensor head according to claim 3, wherein each detector is arranged in one end of a detector strip, and a pivot of the detector strip is arranged at an opposite end of a detector strip. ### Claim 5 (depends on 4) The sensor head according to claim 4, wherein the pivot, the detector, and a center of a shaft, when the sensor head is installed to the shaft, are arranged along a straight line when the sensor head is in a correct installation position. ### Claim 6 (depends on 1) The sensor head according to claim 1, wherein the detectors are displaceably arranged within the housing. ### Claim 7 (depends on 1) The sensor head according to claim 1, wherein a front wall of the sensor head facing a shaft has a concave circular arc shape, as seen in a direction toward the shaft. ### Claim 8 (depends on 6) The sensor head according to claim 6, wherein a front wall of the sensor head facing a shaft includes a slot on an inside of the housing, each detector is arranged at an outer end of a detector strip, the outer end of each detector strip arranged in the slot. ### Claim 9 (depends on 7) The sensor head according to claim 7, wherein the front wall of the sensor head facing a shaft includes a slot on an inside of the housing, and each detector is arranged at an outer end of a detector strip, the outer end of each detector strip being arranged in the slot. ### Claim 10 (depends on 1) The sensor head according to claim 1, wherein the detectors are displaceably arranged on an outside of the housing. ### Claim 11 (depends on 10) The sensor head according to claim 10, wherein each detector is arranged on a detector strip having a circuit board, and each detector strip with a respective detector is encapsulated in a an encasement. ### Claim 12 (depends on 11) The sensor head according to claim 11, wherein each detector is arranged in one end of a detector strip, and a pivot of the detector strip is arranged at an opposite end of a detector strip. ### Claim 13 (depends on 12) The sensor head according to claim 12, wherein the pivot, the detector, and a center of a shaft, when the sensor head is installed to the shaft, are arranged along a straight line when the sensor head is in a correct installation position. ### Claim 14 An encoder system, comprising: a shaft; and a sensor head, including a housing at least two detectors displaceably attached to the housing; wherein a position of each detector is displaceable in accordance with a dimension of the shaft. ### Claim 15 (depends on 14) The system according to claim 14, wherein each detector is arranged on a detector strip having a circuit board. ### Claim 16 (depends on 15) The sensor head according to claim 15, wherein each detector is arranged in one end of a detector strip, and a pivot of the detector strip is arranged at an opposite end of a detector strip. ### Claim 17 (depends on 16) The sensor head according to claim 16, wherein the pivot, the detector, and a center of a shaft, when the sensor head is installed to the shaft, are arranged along a straight line when the sensor head is in a correct installation position. ### Claim 18 (depends on 14) The sensor head according to claim 14, wherein the detectors are displaceably arranged within the housing. ### Claim 19 (depends on 14) The sensor head according to claim 14, wherein a front wall of the sensor head facing a shaft has a concave circular arc shape, as seen in a direction toward the shaft. ### Claim 20 (depends on 18) The sensor head according to claim 18, wherein a front wall of the sensor head facing a shaft includes a slot on an inside of the housing, each detector is arranged at an outer end of a detector strip, the outer end of each detector strip arranged in the slot.