Patents Assigned to Hottinger Baldwin Messtechnik GmbH
  • Publication number: 20210055172
    Abstract: A measuring arrangement for fiber Bragg grating measurement points and particularly a measuring arrangement for two fiber Bragg gratings (FBG), wherein a first measurement point is subjected to tension and a second measurement point is subjected to pressure, or vice versa. The circuit arrangement includes a broadband light source, a first beam splitter, a second beam splitter, a third beam splitter, a fourth beam splitter, a fifth beam splitter, photodiodes and an optical delay element.
    Type: Application
    Filed: December 18, 2018
    Publication date: February 25, 2021
    Applicant: Hottinger Baldwin Messtechnik GmbH
    Inventors: LUIS ALBERTO DE ALMEIDA FERREIRA, FRANCISCO MANUEL MOITA ARALJJO, JOCHEN MAUL
  • Patent number: 10584959
    Abstract: A FBG strain sensor arrangement includes a sensor carrier of steel sheet to which a FBG strain sensor is fastened. A protective cover has a first part configured thin and narrow and bonded to the sensor carrier along an optical fiber so that the optical fiber lying underneath is fixed with a fiber Bragg grating on the sensor carrier. The protective cover is enlarged at each end portion of the optical fiber to thereby form a cavity underneath, with edges of the enlarged second part of the protective cover being bonded to the sensor carrier. Arranged in the cavity is an elastic filler which embeds the coupling points in a vibration damping manner. The protective cover with elastic filler accommodates thermal expansions and functions for dynamic measurements by the vibration damping.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 10, 2020
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Jochen Maul, Tobias Kipp, Bernd Günther, Maria Marta Cabral Bobião Girão, Francisco Manuel Moita Araújo
  • Patent number: 10557762
    Abstract: A device for measuring force and for monitoring wear on overhead lines includes a force-measuring system which includes two contact bars which, in an operating state, are oriented at a right angle to an overhead line to be monitored, and two connection bars, which, in the operating state, are oriented parallel to the overhead line. A bar-shaped force transducer is fastened to each end portion of the two connection bars and each of the bar-shaped force transducers extends in an axial direction of the respective connection bar.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: February 11, 2020
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventor: Wolfgang Viel
  • Patent number: 10502553
    Abstract: A weldable strain sensor includes a strain sensor having two end portions in signal communication with signal lines for transmitting a measurement signal. A sensor carrier extends in a direction of the strain sensor and is firmly connected to the strain sensor. The sensor carrier includes two end portions having slots to thereby form tongues defining tongue ends which are directed in opposition to each other. Integrally surrounding the strain sensor and the end portions thereof is a protective cover of solid plastic which is firmly connected to the sensor carrier. The protective cover is configured in a region of the strain sensor narrow and flat and in a region of coupling points of the strain sensor with the signal lines at least twice as wide and at least twice as high as in a region of the strain sensor.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: December 10, 2019
    Assignee: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventors: Jochen Maul, Tobias Kipp, Bernd Günther, Maria Marta Cabral Bobiâo Giråo, Francisco Manuel Moita Araûjo
  • Publication number: 20190277627
    Abstract: A FBG strain sensor arrangement includes a sensor carrier of steel sheet to which a FBG strain sensor is fastened. The FBG strain sensor includes an optical fiber having two end portions, with a Bragg grating provided between the end portions. An optical signal line is coupled to each end portion for transmission of a measurement signal. A protective cover has a first part configured thin and narrow and bonded to the sensor carrier along the optical fiber so that the optical fiber lying underneath is fixed with the Bragg grating on the sensor carrier. The protective cover is enlarged at each end portion of the optical fiber to thereby form a cavity underneath, with edges of the enlarged second part of the protective cover being bonded to the sensor carrier. Arranged in the cavity is an elastic filler which embeds the coupling points in a vibration damping manner.
    Type: Application
    Filed: July 24, 2017
    Publication date: September 12, 2019
    Applicant: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventors: JOCHEN MAUL, TOBIAS KIPP, BERND GÜNTHER, MARIA MARTA CABRAL BOBIÅO GIRÅO, FRANCISCO MANUEL MOITA ARAÚJO
  • Publication number: 20190219383
    Abstract: A weldable strain sensor includes a strain sensor having two end portions in signal communication with signal lines for transmitting a measurement signal. A sensor carrier extends in a direction of the strain sensor and is firmly connected to the strain sensor. The sensor carrier includes two end portions having slots to thereby form tongues defining tongue ends which are directed in opposition to each other. Integrally surrounding the strain sensor and the end portions thereof is a protective cover of solid plastic which is firmly connected to the sensor carrier. The protective cover is configured in a region of the strain sensor narrow and flat and in a region of coupling points of the strain sensor with the signal lines at least twice as wide and at least twice as high as in a region of the strain sensor.
    Type: Application
    Filed: July 24, 2017
    Publication date: July 18, 2019
    Applicant: Hottinger Baldwin Messtechnik GmbH
    Inventors: JOCHEN MAUL, TOBIAS KIPP, BERND GÜNTHER, MARIA MARTA CABRAL BOBIÃO GIRÃO, FRANCISCO MANUEL MOITA ARAÛJO
  • Patent number: 10295383
    Abstract: A measuring amplifier (103) with background calibration and adjustment amplifies, digitizes and processes at least one measurement signal (111) from at least one measuring transducer (102) with the aid of at least one amplifier arrangement (108). This can be intermittently replaced by an additional amplifier arrangement (107), which enables interruption-free direct calibration and, if necessary, adjustment of the amplifier arrangement. In the calibration, both a zero point error and an amplification error of the amplifier arrangement are reliably determined. A high accuracy is achieved without measurement interruption. Only one additional amplifier arrangement is generally required, even for a measuring amplifier with plural channels.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 21, 2019
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Marco M. Schaeck, Herbert Kitzing
  • Publication number: 20190041283
    Abstract: A device for measuring force and for monitoring wear on overhead lines includes a force-measuring system which includes two contact bars which, in an operating state, are oriented at a right angle to an overhead line to be monitored, and two connection bars, which, in the operating state, are oriented parallel to the overhead line. A bar-shaped force transducer is fastened to each end portion of the two connection bars and each of the bar-shaped force transducers extends in an axial direction of the respective connection bar.
    Type: Application
    Filed: October 9, 2018
    Publication date: February 7, 2019
    Applicant: Hottinger Baldwin Messtechnik GmbH
    Inventor: Wolfgang Viel
  • Patent number: 10132700
    Abstract: An FBG strain sensor for measuring strains to curved surfaces, includes a fiber which is fixed between two securing elements whose undersides are designed as adhesive surfaces, the optical fiber and these securing elements being embedded in a protective compound which consists of a soft silicone rubber or a plastic that has comparable mechanical properties, and the fiber being embedded between an upper and a lower thin sliding film or a sliding tube that consists of Teflon or of a plastic which has a low friction coefficient comparable to Teflon, the underside of the lower sliding film or the lower external surface-line of the sliding tube lying in a plane with the adhesive surfaces of the securing elements.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: November 20, 2018
    Assignee: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventors: Jochen Maul, Tobias Kipp, Bernd Günther
  • Patent number: 10126187
    Abstract: A device for measuring force and for monitoring wear on overhead lines includes a force-measuring system which includes two contact bars which, in an operating state, are oriented at a right angle to an overhead line to be monitored, and two connection bars, which, in the operating state, are oriented parallel to the overhead line. A bar-shaped force transducer is fastened to each end portion of the two connection bars and each of the bar-shaped force transducers extends in an axial direction of the respective connection bar.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: November 13, 2018
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventor: Wolfgang Viel
  • Patent number: 10067009
    Abstract: A force transducer for measuring compression and/or tension forces includes a rod-shaped deformation body and at least four strain transducers applied on the deformation body and configured for measuring a longitudinal strain and a transverse strain of the deformation body. Front and rear elongate recesses are provided on the front and rear sides of the deformation body at an intersection point between a central longitudinal axis and a central transverse axis of the deformation body. Left and right upper indentations and left and right lower indentations are provided on the deformation body respectively at the four quadrants bounded by the axes. An angle between the central transverse axis and a shortest connecting line between the front elongate recess and the left upper indentation is at least 17° and at most 29°.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 4, 2018
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Andreas Jaeger, Heinz-Ronald Will, Werner Schlachter
  • Patent number: 9903772
    Abstract: A load cell has a longitudinal body including a bending beam axially between a force input element and a force output element, strain gages applied on strainable measuring parts of the bending beam, a hermetically sealed enclosure outside around the strain gages and the strainable measuring parts, and an overload protection arrangement including an overload beam in a recess in the bending beam, a receiving hole partially in the overload beam, and a fitting pin received in the receiving hole so that a defined gap is formed between the fitting pin and an adjacent stop surface in the recess of the bending beam. In further embodiments, the enclosure includes a stiff pipe sleeve and ring elements with flexible membranes connecting the sleeve to the longitudinal body, and a mounting end face of the longitudinal body has centering pins in holes and an O-ring in a groove.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: February 27, 2018
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Arno Schmittner, Ralf Scherer
  • Patent number: 9791332
    Abstract: A force transducer for measuring compression and/or tension forces includes a rod-shaped deformation body and at least four strain transducers applied on the deformation body and configured for measuring longitudinal and transverse strains thereof. Front and rear elongate recesses are provided on the front and rear sides of the deformation body in the area of an intersection between a central longitudinal axis and a central transverse axis of the deformation body. Left and right upper indentations and left and right lower indentations are provided on the deformation body respectively at the four quadrants bounded by the axes. A ratio of a cross-section on a center plane extending orthogonally to the central longitudinal axis and including the central transverse axis, to a sum of first and second partial regions of the cross-section, is from 1.56 to 2.15.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: October 17, 2017
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Andreas Jaeger, Heinz-Ronald Will, Werner Schlachter
  • Publication number: 20160349126
    Abstract: A device for measuring force and for monitoring wear on overhead lines includes a force-measuring system which includes two contact bars which, in an operating state, are oriented at a right angle to an overhead line to be monitored, and two connection bars, which, in the operating state, are oriented parallel to the overhead line. A bar-shaped force transducer is fastened to each end portion of the two connection bars and each of the bar-shaped force transducers extends in an axial direction of the respective connection bar.
    Type: Application
    Filed: November 7, 2014
    Publication date: December 1, 2016
    Applicant: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventor: WOLFGANG VIEL
  • Patent number: 9397492
    Abstract: A circuit for protecting an electronic functional unit connected to a data line against positive and negative overvoltages includes an analog switch arranged in the data line before the electronic functional unit and a voltage monitor, which is configured to control the analog switch, wherein the voltage monitor is configured to close the analog switch when no overvoltage occurs and to open the analog switch when an overvoltage occurs. The circuit also functions in an energy-saving mode and/or when no supply voltage is applied. The low resistance and bidirectionality of the data line are maintained.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: July 19, 2016
    Assignee: HOTTINGER BALDWIN MESSTECHNIK GMBH
    Inventor: Reinhard Voelger
  • Patent number: 9255832
    Abstract: A load cell includes a longitudinal body including force input and output elements and a bending beam, strain gages, and a hermetically sealed enclosure. A force applied onto the input element perpendicularly to the longitudinal axis causes bending strain of the beam, which is measured by the strain gages. The enclosure includes a stiff pipe sleeve and two ring elements, which each include a membrane that is more flexible than the pipe sleeve, and which support the pipe sleeve relative to and spaced radially away from the longitudinal body. The membranes preferably decouple the pipe sleeve from the longitudinal body so that essentially none of the applied force is shunted into the pipe sleeve. Preferably a cylindrical outer surface of the pipe sleeve can avoid accumulation of contaminants.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 9, 2016
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Arno Schmittner, Ralf Scherer
  • Patent number: 9164004
    Abstract: A load cell has a longitudinal body including a bending beam axially between a force input element and a force output element, strain gages applied on strainable measuring parts of the bending beam, a hermetically sealed enclosure outside around the strain gages and the strainable measuring parts, an O-ring and centering pins. An end face of the force input or output element is to be connected to a weighing scale part in an aligned, force-transmitting, hermetically-sealed manner, for which the end face has centering holes receiving the centering pins, a circular groove receiving the O-ring, and a threaded hole receiving a connecting bolt. Further embodiments involve an overload protection integrated in the bending beam, or the enclosure including a stiff pipe sleeve and ring elements with flexible membranes connecting the sleeve to the longitudinal body.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: October 20, 2015
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Arno Schmittner, Ralf Scherer
  • Patent number: 9003896
    Abstract: A torque sensor includes a central hub, a fastening ring arranged radially outwardly from and coaxially circumferentially around the central hub, a continuous imperforate flange disc that extends radially between and interconnects the central hub and the fastening ring, and strain gages or other force transducers for measuring a torsional shear strain in the flange disc. The flange disc has blind pocket recesses that are recessed into the flange disc from one or both axial sides thereof. Each pocket recess is bounded at the bottom by a pocket recess floor. Strain transducers are mounted on the inner surfaces of the pocket recess floors in the pocket recesses and/or on the outer back surfaces of the pocket recess floors on the opposite side of the flange disc. The strain transducers measure torsional shear strain in the recess floors.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: April 14, 2015
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Werner Nold, Juergen Andrae
  • Publication number: 20130074610
    Abstract: The invention relates to a load cell, preferably for an aseptic platform scale, which is embodied rod-shaped and includes a force introduction element (1) and a force output element (2) and a force measuring element arranged axially therebetween. In that regard, the force measuring element comprises a bending beam (3), of which the internally located measuring spring parts (12) with the strain gages applied thereon are hermetically tightly enclosed by welded metal parts (4, 5, 6). In that regard, the force introduction element (1), the force measuring element (3) and the force output element (2) are embodied substantially rotationally symmetrically and rounded-off along a longitudinal axis (9), whereby the force measuring element comprises a flexurally stiff pipe sleeve (4) with the bending beam (3) arranged therein.
    Type: Application
    Filed: April 6, 2011
    Publication date: March 28, 2013
    Applicant: Hottinger Baldwin Messtechnik GmbH
    Inventors: Arno Schmittner, Ralf Scherer
  • Patent number: 8405822
    Abstract: The invention relates to an optical strain gauge using a glass fiber (1) comprising a Bragg grating (2). The glass fiber is coated with a sheath (3) of polyether ether ketone with an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a particle size of between 0.08 ?m and 12 ?m. The outer diameter of the sheath (3) is between 0.2 mm and 1.2 mm. The ratio D/d between the outer diameter D of the sheath (3) and the diameter d of the glass fiber (1) is between 2 and 6. A pressure of the sheath (3) on the glass fiber (1) is such that essentially no relative movement can occur between the glass fiber (1) and the sheath (3).
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: March 26, 2013
    Assignee: Hottinger Baldwin Messtechnik GmbH
    Inventors: Bernd Günther, Hagen Ruppin, Karl-Heinz Haase, Tobias Kipp, Manfred Kreuzer, Jochen Maul, Rudolf Schulz