2751results about "Tension measurement" patented technology

A fingerprint-sensing device with a sensor array that does not use active switching elements is fabricated on a base. Sensor support integrated circuits, which contain processing and addressing circuitry, are separately fabricated and subsequently mounted on the base, establishing electrical connections with an interconnect structure within the base, and are thus not integrated with the sensor array. The sensor support integrated circuits can be covered by a bezel structure and the sensor array by a covering material. In addition, a connection cable can be provided to connect the sensor array and the sensor support integrated circuits with a power source and to other external devices and to convey signals generated by the sensor array to the external devices.

Forces and moments are detected in a distinguishing manner by a simple structure. A supporting member (20) is positioned below a force receiving member (10), which receives forces to be detected, and between these components, four columnar force transmitting members (11 to 14) are connected. Connecting members, having flexibility, are interposed at the upper and lower ends of each of the columnar force transmitting members (11 to 14) so that the columnar force transmitting members (11 to 14) can become inclined when the force receiving member (10) becomes displaced upon receiving a force. Sensors (21 to 24), each equipped with capacitance elements, are positioned at the connections parts of the respective columnar force transmitting members (11 to 14) and the supporting member (20) to detect forces that are transmitted from the respective columnar force transmitting members (11 to 14) to the supporting member (20). Based on the detection values of the sensors (21 to 24), a detection circuit (30) detects, in a distinguishing manner, forces and moments acting on the force receiving member (10). All of forces Fx, Fy, and Fz and moments Mx, My, and Mz can be detected.

According to one aspect of the invention, a force measurement system includes a force measurement assembly, a motion base configured to displace the force measurement assembly, and an inertial compensation system configured to determine the inertial forces and / or moments resulting from the displacement of the force measurement assembly by the motion base. According to another aspect of the invention, a method for accurately determining the forces and / or moments applied to a surface of a force measurement device by a subject disposed thereon is disclosed, which includes the step of determining, by using an inertial compensation system, the inertial forces and / or moments resulting from the displacement of a force measurement assembly by a motion base. According to still another aspect of the invention, a force and / or motion measurement system having inertial compensation includes a motion acquisition system having a plurality of motion sensing devices configured to capture a subject's movement.

This invention relates to a system that continuously monitors pressure and force on the foot, analyzes and visualizes the pressure and force exerted on said foot in real-time. The invention measures pressure and force applied to a plurality of sensors placed in various points of an orthotic, shoe, shoe lining, insert, sock or sock type device. If the sensors detect pressure or force, the sensors send a signal to a microcomputer processor located in the shoe that subsequently analyzes and sends the data wireless to either a handheld electronic device, a personal computer, an electronic data capture system or a software program. The handheld electronic device or the personal computer then displays the data to an operator of the device or computer instantaneously; while the data capture system or program forwards the information to a handheld device and / or personal computer.

An occupant load sensor (10) is fixed to a bracket (48) via a sleeve (60a) of a collar (60) arranged in an outer periphery of a thread (32) of a bolt portion (30), and a bush (62) interposed between the sleeve (60a) and a through hole (48a) of the bracket (48). Accordingly, a slight movement is allowed between the bolt portion (30) and the bracket (48) on the basis of gaps formed between the thread (32) and the sleeve (60a) and between the sleeve (60a) and the bush (62), and it is possible to cancel a force applied from the other directions than a vertical direction. Therefore, a load from the seat side is applied in the vertical direction and it is possible to accurately detect.

Disclosed is a robust tactile sensor array that mimics the human fingertip and its touch receptors. The mechanical components are similar to a fingertip, with a rigid core surrounded by a weakly conductive fluid contained within an elastomeric skin. It uses the deformable properties of the finger pad as part of the transduction process. Multiple electrodes are mounted on the surface of the rigid core and connected to impedance measuring circuitry within the core. External forces deform the fluid path around the electrodes, resulting in a distributed pattern of impedance changes containing information about those forces and the objects that applied them. Strategies for extracting features related to the mechanical inputs and using this information for reflexive grip control.

A system monitors dynamic forces between bearing surfaces. Based on sensed data, the system may model the forces on the bearing surfaces, analyze these forces, store data relating to these forces, and / or transmit data to an external data gathering device. The system includes a first body piece and a second body piece which mate together. The first and second body pieces comprise bearing surfaces that contact a material that may exert a force. A protrusion, such as a pole, post, or beam, extends from first body piece's bearing surface. At least one sensor is disposed on a pole. The at least one sensor detects a mechanical motion of the pole resulting from a force imposed on the body pieces, and generates data indicative of this force. A computer communicates with the at least one sensor and processes the sensed and / or modeled data.

Forces and moments are detected in a distinguishing manner by a simple structure. A supporting member (20) is positioned below a force receiving member (10), which receives forces to be detected, and between these components, at least two columnar force transmitting members (11, 12) are connected. Connecting members having flexibility are interposed at the upper and lower ends of each of columnar force transmitting members (11, 12) so that columnar force transmitting members (11, 12) can become inclined when force receiving member (10) becomes displaced upon receiving a force. Sensors (21, 22) are positioned at the respective connection parts of columnar force transmitting members (11, 12) and supporting member (20) to detect forces that are transmitted from the respective columnar force transmitting members (11, 12) to supporting member (20). Based on the detection values of sensors (21, 22), detection processing unit 30 detects, in a distinguishing manner, forces and moments acting on force receiving member (10). When four columnar force transmitting members are used, all of forces Fx, Fy, and Fz and moments Mx, My, and Mz can be detected.

In a capacitance type sensor of the present invention, a capacitance element is constituted between a displacement electrode and a capacitance element electrode. A return-switch movable electrode is arranged above and spaced from the displacement electrode, to be placed in contact with the displaying electrode due to a displacement of a direction button. When the direction button is operated, the return-switch movable electrode is first displaced into contact with the displacement electrode. Then, the both make a displacement while keeping a contact state. When the displacement electrode is displaced to change the spacing to the capacitance element electrode, changed is the capacitance value of the capacitance element. Based on this change, a force is recognized. Herein, in the course of a transit from a state the displacement electrode and the return-switch electrode are not in contact to a state of their contact, the output signal varies necessarily beyond a threshold voltage.