摘要:
Disclosed is a multi-component force measurement spindle unit that accurately measures forces and moments applied to a tire in a tire testing machine. The multi-component force measurement spindle unit of a tire testing machine includes: a spindle shaft on which a tire can be mounted; an inner sleeve that rotatably supports the spindle shaft via a bearing part; an outer sleeve arranged on an outside of the inner sleeve along an axial center direction of the spindle shaft; a multi-component force measurement sensor that connects an end of the inner sleeve and an end of the outer sleeve to each other and is capable of measuring a load acting on the outer sleeve from the inner sleeve; and a cooling part that cools the inner sleeve.
摘要:
The present invention relates to a load and moment sensor for a prosthetic device detecting load in a single direction and moment in a single plane. The load and moment sensor includes a sensing element, and a plurality of strain gauges placed in specific locations of the sensing element. The plurality of strain gauges is part of a plurality of resistor circuits such as Wheatstone bridges. While the strain gauges can be located on a single sensing element, some resistive elements of the Wheatstone bridges can be located elsewhere on the prosthetic device. The combination of the location of the strain gauges and the use of the Wheatstone bridges allows for good side load rejection which is load and moment not in the single direction or the single plane.
摘要:
The present invention provides a detection device for detecting a load and moment and capable of increasing the output by a strain gage. The detection device is provided with a characteristic sensor block. The sensor block includes a base having an axis extending in the direction of a load to be detected, a front side wall raised from the base at a position offset from the axis of the base, a rear side wall raised from the base at a position offset from the axis of the base in the direction opposite the front side wall, and an upper wall for connecting the upper end of the front side wall and the upper end of the rear side wall. The sensor block supports each strain gauge on the upper surface of the upper wall. The upper wall includes a center portion located at the center between the front side wall and the rear side wall, a first portion located between the center portion and the front side wall, and a second portion located between the center portion and the rear side wall. The first portion and the second portion, which support the strain gauges, have a smaller thickness than the center portion and are relatively easily deformed or strained.
摘要:
The invention relates to a sensor device for the intraoral measurement of a jaw position, a jaw movement, and/or a jaw force, comprising a housing; a deformation body, which is received in the housing; a pressure plate, which is connected to the deformation body, for transmitting an external force acting locally upon the pressure plate to the deformation body such that the deformation body deforms at least locally; and a sensor, which is arranged on the deformation body, for measuring a deformation of the deformation body. The deformation body has a support portion, which is stationary relative to the housing, and a force introduction portion, which is connected to the support portion via at least one bending portion and upon which the external force to be introduced into the pressure plate acts. When a force is introduced, the bending portion of the deformation body deforms, and the deformation is measured by the sensor. The invention further relates to a deformation body for such a sensor device.
摘要:
The invention relates to a moment-and-force sensor comprising a one-piece main part that forms a frame enclosing a central opening and defining two securing planes which are offset with respect to one another. On each securing plane at least three securing points or surfaces are provided, on corresponding securing sections of the frame, and are arranged alternately in one of the two securing planes, in the circumferential frame direction. The frame changes in thickness between said securing sections, from one securing plane to the other, and comprises transition sections which extend at an incline to said securing planes, interconnect the securing sections of the frame, and each of which has measurement sensors arranged therein in order to detect material extension of the frame.
摘要:
A pedaling motion measuring device of the present invention includes: a measurement body unit (2) that has a first sensor unit (21, 22) for sensing the number of rotation of a wheel (104) by sensing the motion of the wheel of a bicycle, and second sensor units (4, 5) arranged at right and left crank arms (107) for sensing magnitude and direction of a force applied to each of the right and left crank arms; a first work calculation unit (8b) that calculates work performed by the bicycle within a prescribed time based on the number of rotation of the wheel sensed by the first sensor unit (21, 22); a second work calculation unit (8c) that calculates work provided to the crank member by the user within a prescribed time, based on the magnitude and direction of the force applied to each of the right and left crank arms (107) and sensed by the second sensor units (4, 5); and an efficiency calculation unit (8d) that calculates the efficiency of the bicycle based on the work of the bicycle and the user's work.
摘要:
Es wird ein Meßkörper (1a..1c) zur Messung von Kräften angegeben, welcher zwei voneinander beabstandete Basisteile (2a, 2b) und vier identische, voneinander beabstandete, entlang einer Längsachse (z) ausgerichtete und in einem Quadrat (Q) angeordnete Stege (A..D, A'..D') umfasst, welche die beiden Basisteilen (2a, 2b) verbinden. Nur an den genannten Stegen (A..D, A'..D') sind Kraftmeßsensoren (3a, 3b, 3A..3D, 11, 12, 21, 22, 31..34) vorgesehen. Weiterhin wird ein Kraftmeßsensor (3a, 3b, 3A..3D) angegeben, welcher zwei erste Dehnmeßstreifen (11, 12) zur Messung einer Kraft in einer ersten Richtung (z) umfasst, zwei zweite Dehnmeßstreifen (21, 22) zur Messung einer Kraft normal darauf, zumindest einen dritter Dehnmeßstreifen (31, 33) zur Messung einer Kraft in einem Winkel von +45° und zumindest einen vierter Dehnmeßstreifen (32, 34) zur Messung einer Kraft in einem Winkel von -45°. Die Dehnmeßstreifen (11, 12, 21, 22, 31..34) sind dabei auf einem gemeinsamen Substrat angeordnet. Schließlich wird eine Meßanordnung unter Verwendung des genannten Meßkörpers (1a..1c) angegeben.
摘要:
The invention relates to a multiaxial force-torque sensors having a transducer structure, with strain gauges placed in defined areas to measure the strain, from which the forces and torques are calculated, and where the transducer structure advantageously consists of two concentric rings connected with spokes, whereas the transducer structure is a planar mechanical structure, and all strain gauges are applied to the same surface of the transducer structure in a way that non-radial strain components are measured.