Abstract

An electrical resistance strain gage includes a uniformly distributed electrical resistance of the active measuring area and a discrete electrical trim resistance within an active measuring are. The trim resistance may include an electrical conductor in an electrically parallel circuit such that the electrical conductor may be selectively electrically removed from the strain gage to trim the electrical resistance of the strain gage. The trim resistance does not modify the active strain sensing area or uniform grid length.

IPC Classes  ?

• H01C 17/23 - Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by opening or closing resistor tracks of predetermined resistive values
• G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
• G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Goods & Services

Electric components, namely, resistors and resistor networks, low value resistors, shunt resistors, foil resistors, current sensors, potentiometers, trimmer potentiometers, capacity sensors, inductor sensors, volume control sensors, inclinometer sensors, MEMS (microelectromechanical system) sensors, vibrating wire sensors, electrical resistance strain gauges, strain gauge transducers, load cells, pressure sensors, accelerators, sensors, stress analysis systems, strain gauge instrumentations, computer software for use in weighing systems and processes control, computer software for use in stress analysis; load cell modules that include electronic instrumentation and systems used for process control, for weighing and sorting, and for process control using transducers; strain gauge instrumentation, reflection polariscopes and photo elastic plastics in the nature of strain sensitive plastics for measuring strains on surfaces of materials for optical measurement and analysis of stresses and strains; strain gauge calibration equipment; strain gauge installation testers; accessories used for surface preparation and installation of electrical resistance strain gauges and bondable resistors, namely, soldering and welding equipment, namely, portable electric powered strain gauge welding and soldering apparatus, bondable electronic terminals, electric bridge completion modules, namely, gauge installation testers, for verifying the electrical quality of strain gauge installation; junction boxes; lift truck scales; force measurement, weight, web tension and strip tension digital indicators and sensors; digital I/O boards, namely, computer interface boards; web tension and strip systems consisting primarily of data transmitters, electronic controllers, programmable logic controllers (PLC), sensors, remotes indicators, and electronic displays for displaying measurement data and terminals for entering data; force measurement systems consisting primarily of data transmitters, electronic controllers, programmable logic controller (PLC), sensors, remotes indicators, load cells, and electronic displays for displaying measurement data and terminal for entering data; electro hydraulic positioning systems consisting primarily of servo controllers, programmable logic controller (PLC), hydraulic servo controls, signal conditioners, control valves and transducers, and micro-processor based hardware and software used to provide real-time communication of industrial processes; aircraft and vehicle scales and weighing equipment and systems overload and on-board weighing equipment and systems, namely, electronic controllers, and electronic displays for displaying measurement data and terminals for entering data, weighing systems consisting primarily of weighing scales, load cells, digital readout devices, weighing platforms and scales, and structural parts thereof; overload and on-board weighing equipment and systems, namely, electronic controllers, and electronic displays for displaying measurement data and terminals for entering data, weighing systems consisting primarily of weighing scales, load cells, digital readout devices, weighing platforms and scales, and structural parts thereof; strain indicators, namely, digital readout devices; data acquisition conditioners comprised of electronic sensors which detect various physical parameters and convert the physical parameters to electrical signals concerning equipment performance, and electronic signal conditioning circuits to convert analog waveforms into digital values for processing in the field of equipment performance; electronic measurement and sensor equipment and systems for use in rolling mills, paper mills and mining in the nature of detectors, scanners, gauges, sensors, and meters for industrial purposes, namely, metal detectors, hot metal detectors, opto-electronic gauges in the nature of displacement transducers and fluid pressure transducers, tension meters, and computer software and hardware for controlling actuation of a shear blade used in a steel rolling mill

Goods & Services

Electric components, namely, resistors and resistor networks, low value resistors, shunt resistors, foil resistors, current sensors, potentiometers, trimmer potentiometers, capacity sensors, inductor sensors, volume control sensors, inclinometer sensors, MEMS (microelectromechanical system) sensors, vibrating wire sensors, electrical resistance strain gauges, strain gauge transducers, load cells, pressure sensors, accelerators, sensors, stress analysis systems, strain gauge instrumentations, computer software for use in weighing systems and processes control, computer software for use in stress analysis; load cell modules that include electronic instrumentation and systems used for process control, for weighing and sorting, and for process control using transducers; strain gauge instrumentation, reflection polariscopes and photo elastic plastics in the nature of strain sensitive plastics for measuring strains on surfaces of materials for optical measurement and analysis of stresses and strains; strain gauge calibration equipment; strain gauge installation testers; accessories used for surface preparation and installation of electrical resistance strain gauges and bondable resistors, namely, soldering and welding equipment, namely, portable electric powered strain gauge welding and soldering apparatus, bondable electronic terminals, electric bridge completion modules, namely, gauge installation testers, for verifying the electrical quality of strain gauge installation; junction boxes; lift truck scales; force measurement, weight, web tension and strip tension digital indicators and sensors; digital I/O boards, namely, computer interface boards; web tension and strip systems consisting primarily of data transmitters, electronic controllers, programmable logic controllers (PLC), sensors, remotes indicators, and electronic displays for displaying measurement data and terminals for entering data; force measurement systems consisting primarily of data transmitters, electronic controllers, programmable logic controllers (PLC), sensors, remotes indicators, load cells and electronic displays for displaying measurement data and terminal for entering data; electro hydraulic positioning systems consisting primarily of servo controllers, programmable logic controller (PLC), hydraulic servo controls, signal conditioners, control valves and transducers, and micro-processor based hardware and software used to provide real-time communication of industrial processes; aircraft and vehicle scales and weighing equipment and systems overload and on-board weighing equipment and systems, namely, electronic controllers, and electronic displays for displaying measurement data and terminals for entering data, weighing systems consisting primarily of weighing scales, load cells, digital readout devices, weighing platforms and scales, and structural parts thereof; overload and on-board weighing equipment and systems, namely, electronic controllers, and electronic displays for displaying measurement data and terminals for entering data, weighing systems consisting primarily of weighing scales, load cells, digital readout devices, weighing platforms and scales, and structural parts thereof; strain indicators, namely, digital readout devices; data acquisition conditioners comprised of electronic sensors which detect various physical parameters and convert the physical parameters to electrical signals concerning equipment performance, and electronic signal conditioning circuits to convert analog waveforms into digital values for processing in the field of equipment performance; electronic measurement and sensor equipment and systems for use in rolling mills, paper mills and mining in the nature of detectors, scanners, gauges, sensors, and meters for industrial purposes, namely, metal detectors, hot metal detectors, opto-electronic gauges in the nature of displacement transducers and fluid pressure transducers, tension meters, and computer software and hardware for controlling actuation of a shear blade used in a steel rolling mill

Goods & Services

Film resistor chips used as a component part for electrical components-namely, resistors, variable resistors, resistor networks, trimmers and potentiometers.

Abstract

A shear beam sensor is configured for use in a weight - sensing platform. The weight - sensing platform has a base and a top platform. The shear beam sensor has beam (200) including a top surface (204), a bottom surface and a side surface. The top surface is configured to be coupled to the top platform. The bottom surface is configured to be coupled to the base. A shear strain gage having a plurality of resistive grids (206, 208) is coupled to the side surface of the beam. The resistive grids are configured to minimize beam thickness. The shear strain gage can be coupled to the beam displaced from the beam center line. The shear strain gage can be configured to minimize spacing between the plurality of resistive grids. The shear strain gage can also be configured with a plurality of shunts coupled to each resistive grid.

IPC Classes  ?

• G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
• G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
• G01G 3/14 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance

Abstract

Strain gage resistance calibration using shunts. The strain gage includes an insulating, substrate. A resistive grid is formed on the substrate. A plurality of shunts are associated with the resistive grid, each of the shunts include one or more shunting bars. Severing a shunting bar alters (e.g., increases) the resistance of the resistive grid. Severing of the shunting bars can be performed by: chemical etching, electro-chemical etching, a laser beam, metal cutting and particle blasting. Shunting bars can be located on at least one edge of the resistive grid or in an internal area within the resistive grid. In a preferred embodiment, the insulating substrate is flexible.

IPC Classes  ?

• G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
• G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
• G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Abstract

A methodology for selecting and properly placing foil strain gages on a transducer in a Wheatstone bridge, which provides a more consistent creep response, especially when the transducer temperature is changed. A transducer includes a counterforce subjected to a predetermined physical load that provides tension and compression strains (positive and negative, respectively). The transducer also includes a plurality of strain gage grids that are operatively attached to the counterforce in the tension and compression strain areas of the counterforce and generate electrical signals. The plurality of strain gages are electrically connected in a Wheatstone bridge circuit where their electrical signals due to creep are cancelled.

IPC Classes  ?

• G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
• G01B 5/30 - Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge

Goods & Services

Film resistor chips used as a component part for electrical components namely, resistors, variable resistors, resistor networks, trimmers and potentiometers.

Goods & Services

FILM RESISTOR CHIPS USED AS A COMPONENT PART FOR ELECTRICAL COMPONENTS-NAMELY, RESISTORS, VARIABLE RESISTORS, RESISTOR NETWORKS, TRIMMERS AND POTENTIOMETERS