# US 2018/0024015 A1 · Load Transducer System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024015 A1 - Document ID: US20180024015A1 - Status: Published application - Kind: A1 - Application number: 15/721,951 - Filed: 2017-10-01 - Published: 2018-01-25 - Earliest claimed: 2013-10-05 - Assignees: Bertec Corporation - Applicants: Bertec Limited - Inventors: Necip Berme; Jan Jakub Ober - Web page: https://patentgrep.com/patent/US20180024015A1 ## CPC - G01L 1/2206: {Special supports with preselected places to mount the resistance strain gauges; Mounting of supports} - G01L 1/26: Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload - G01L 5/107: for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders - G01L 5/162: of piezoresistors - G01L 5/1627: of strain gauges (using piezoresistors G01L5/162) - G01L 25/00: Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency - G01N 3/24: by applying steady shearing forces (G01N3/26, G01N3/28 take precedence) - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract A load transducer system is disclosed herein. The load transducer system includes a load transducer and a data processing device. The load transducer has a load transducer frame portion configured to elastically deform when a load is applied to the load transducer; and one or more deformation sensing elements, disposed on the load transducer frame portion, sensitive to one or more respective force or moment components of the load. The data processing device is operatively coupled to the one or more deformation sensing elements of the load transducer, the data processing device is configured to determine one or more output forces or moments from one or more respective output signals of the one or more deformation sensing elements, to determine one or more deformation compensation parameters for the load transducer system, and to correct the one or more output forces or moments using the one or more deformation compensation parameters. ## Claims ### Claim 1 A load transducer system, comprising: a load transducer including: a load transducer frame portion, the load transducer frame portion configured to elastically deform when a load is applied to the load transducer; and one or more deformation sensing elements disposed on the load transducer frame portion, the one or more deformation sensing elements being sensitive to one or more respective force or moment components of the load and outputting one or more respective output signals representative of the one or more respective force or moment components of the load; and a data processing device operatively coupled to the one or more deformation sensing elements of the load transducer, the data processing device configured to receive the one or more respective output signals from the one or more deformation sensing elements, the data processing device further configured to determine one or more respective output forces or moments from one or more respective output signals, and the data processing device additionally configured to determine one or more deformation compensation parameters for the load transducer system and to correct the one or more respective output forces or moments using the one or more deformation compensation parameters. ### Claim 2 (depends on 1) The load transducer system according to claim 1, further comprising one or more additional deformation sensing elements disposed on the load transducer, the one or more additional deformation sensing elements configured to output one or more deformation output signals indicative of a deformation of a portion of the load transducer, the one or more additional deformation sensing elements being operatively to the data processing device, the data processing device configured to receive the one or more respective deformation output signals from the one or more additional deformation sensing elements, and to determine the one or more deformation compensation parameters based upon the one or more respective deformation output signals. ### Claim 3 (depends on 2) The load transducer system according to claim 2, wherein the one or more additional deformation sensing elements of the load transducer comprise one or more strain gages configured to measure the deformation of the portion of the load transducer. ### Claim 4 (depends on 1) The load transducer system according to claim 1, wherein the load transducer frame portion is in the form of a load cell pylon, the load cell pylon being compact and of one-piece construction. ### Claim 5 (depends on 1) The load transducer system according to claim 1, wherein the data processing device is further configured to determine one or more temperature compensation parameters for the load transducer system and to correct at least one of the one or more respective output signals using the one or more temperature compensation parameters, the data processing device additionally configured to determine at least one output force or moment from the corrected one or more respective output signals of the one or more deformation sensing elements of the load transducer. ### Claim 6 (depends on 1) The load transducer system according to claim 1, further comprising one or more redundant deformation sensing elements, the one or more redundant deformation sensing elements configured to enable the load transducer to produce the same output when one of the one or more deformation sensing elements experiences a failure. ### Claim 7 A load transducer system, comprising: a load transducer including: a load transducer frame portion, the load transducer frame portion configured to elastically deform when a load is applied to the load transducer; and one or more deformation sensing elements disposed on the load transducer frame portion, the one or more deformation sensing elements being sensitive to one or more respective force or moment components of the load and outputting one or more respective output signals representative of the one or more respective force or moment components of the load; and a data processing device operatively coupled to the one or more deformation sensing elements of the load transducer, the data processing device configured to receive the one or more respective output signals from the one or more deformation sensing elements, the data processing device further configured to determine one or more temperature compensation parameters for the load transducer system and to correct the one or more respective output signals from the one or more deformation sensing elements using the one or more temperature compensation parameters, the data processing device additionally configured to determine one or more respective output forces or moments from one or more corrected respective output signals. ### Claim 8 (depends on 7) The load transducer system according to claim 7, further comprising one or more temperature sensing elements disposed on the load transducer, the one or more temperature sensing elements configured to output one or more temperature output signals indicative of a temperature of at least a portion of the load transducer, the one or more temperature sensing elements being operatively to the data processing device, the data processing device configured to receive the one or more respective temperature output signals from the one or more temperature sensing elements, and to determine the one or more temperature compensation parameters based upon the one or more respective temperature output signals. ### Claim 9 (depends on 8) The load transducer system according to claim 8, wherein the one or more temperature sensing elements comprise one or more thermistors. ### Claim 10 (depends on 8) The load transducer system according to claim 8, wherein the one or more temperature sensing elements comprise one or more strain gages. ### Claim 11 (depends on 7) The load transducer system according to claim 7, wherein the data processing device is further configured to determine one or more excitation current values associated with the one or more deformation sensing elements of the load transducer, and to determine the one or more temperature compensation parameters based upon the one or more excitation current values. ### Claim 12 (depends on 7) The load transducer system according to claim 7, wherein the data processing device utilizes the one or more temperature compensation parameters to correct for temperature-induced effects on the zero drift of the load transducer. ### Claim 13 (depends on 7) The load transducer system according to claim 7, wherein the data processing device utilizes the one or more temperature compensation parameters to correct for temperature-induced effects on the sensitivity of the load transducer. ### Claim 14 A load transducer system, comprising: a load transducer including: a load transducer frame portion, the load transducer frame portion configured to elastically deform when a load is applied to the load transducer; and one or more deformation sensing elements disposed on the load transducer frame portion, the one or more deformation sensing elements being sensitive to one or more respective force or moment components of the load and outputting one or more respective output signals representative of the one or more respective force or moment components of the load; and a data processing device operatively coupled to the one or more deformation sensing elements of the load transducer, the data processing device configured to receive the one or more respective output signals from the one or more deformation sensing elements, the data processing device further configured to reference a stored calibration matrix for the load transducer, and to determine one or more output forces or moments from the one or more respective output signals of the one or more deformation sensing elements using the stored calibration matrix, the data processing device additionally configured to determine a position of the applied load, and to correct the one or more output forces or moments based upon the position of the applied load. ### Claim 15 (depends on 14) The load transducer system according to claim 14, wherein the data processing device is configured to correct the one or more output forces or moments by utilizing a mathematical relationship that is based upon the position of the applied load.