force measuring device and method

In another embodiment of the present invention, a force sensing member is provided which is adapted for use in a force measuring apparatus for monitoring fatigue in at least one body part of a person performing repetitive motions, said force sensing member comprising: a) a force sensor functionally associated with the force sensing member that generates signal characteristic of force produced by the body part and transmitted to the input device during performance of the repetitive motions; and b) a switch sensor functionally associated with the force sensing member that generates signal when depression and release of the force sensing member occurs during performance of the repetitive motions. Device and method for measuring axial force of bolt . 5, both the keyboard switches and force sensors supply signal to the data acquisition card. The simplest method of measuring jump height requires the participant to touch a pre-measured distance marked on a wall, a pole, or a commercially available measurement device [40][41] [42] [43][44]. Devices used in this method are Bourdon tubes, flat and corrugated- diaphragms, capsules and various forms of manometers. 12 is an illustration of a force measuring system incorporated into a personal computer system that includes a mouse and joystick; and. the waveform of the force) over time is recorded by the apparatus to demonstrate the change in force productions associated with fatigue. Ebullioscope a device for measuring the boiling point of a liquid. For isometric-type testing, electrodes are attached to a muscle being studied and the test subject is instructed to apply a constant force with that muscle while maintaining that muscle in a static position. depressed or released) during application of the force via the key switches, or “switch sensors”. Presently, surgical intervention is used to minimize CTS. Method and device for measuring the nip force and/or the nip pressure in a nip formed by a revolving roll or by a corresponding band employed in the manufacture of paper in which measurement detectors are arranged in a series and placed in the transverse direction of the revolving roll, preferably over the entire width of the paper web. All kinds of forces can be measured with the universal HZM force-measuring device in combination with different force measuring pins - … When studying repetitive activities involving fingers, many factors may influence the generation of finger force, such as the activity of the muscles and the tendons shown FIG. Power controlled systems like doors, gates, windows, sun roofs or protection devices for machines can cause injuries. Device and method for diagnosing a disorder. Chandigarh [India], December 17 (ANI): Design Innovation Centre (DIC), UIET, Panjab University in Chandigarh has developed a human bite åˆç ”究所, Searete Llc, A Limited Liability Corporation Of State Of Delaware, The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration, International Business Machines Corporation, Rutgers, The State University Of New Jersey, SAN DIEGO STATE UNIVERSITY FOUNDATION, CALIFORNIA, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:POZOS, ROBERT S.;AGRAZ, JOSE L.;REEL/FRAME:011978/0719, PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362, Pinch grip dynamometer field testing calibration stand, Method and device for measuring exercise level during exercise and for measuring fatigue, Personal identification apparatus using measured tactile pressure, Methods and apparatus to meter video game play, Snap hinge for supporting a closure element, Finger and hand exerciser with tension adjuster, Postural information system and method including determining subject advisory information based on prior determined subject advisory information, Postural information system and method including determining subject advisory information based on prior determined subject advisory information, Postural information system and method including central determining of subject advisory information based on subject status information and postural influencer status information, Postural information system and method including direction generation based on collection of subject advisory information, Postural information system and method including determining response to subject advisory information, Method and apparatus for real-time measurement and analysis of occupational stress and fatigue and performance outcome predictions, Pain estimate device and pain estimate method, Method and apparatus for tracking three-dimensional movements of an object using a depth sensing camera, Method and apparatus for optimizing the rate of play of a gaming device, Scheme for translating movements of a hand-held controller into inputs for a system, Scheme for detecting and tracking user manipulation of a game controller body, Method for mapping movements of a hand-held controller to game commands, Method and apparatus for use in determining an activity level of a user in relation to a system. FIG. More on continuum mechanics In an alternative embodiment, a metronome may be provided. Such a method would be useful to hand surgeons, and physical and occupational therapists to evaluate patients suffering from RSI before and after clinical interventions. FIG. 12 is an illustration of a FMS which is interfaced with a personal computer system that includes a case. For example, FIG. SAN DIEGO STATE UNIVERSITY FOUNDATION, CALIFORNIA, Free format text: mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. Force Measuring. For example, in Krugman, U.S. Pat. However, the degree of impairment is usually not quantifiable. For example, if a FMS is incorporated into a golf club handle, a golfer may be alerted when the club is being held too tight in order to learn when to loosen her grip. Owner name: When a subject uses the apparatus over an extended period of time as part of a training program, the onset of fatigue may be observed to occur later and later. Design Innovation Centre (DIC), UIET, Panjab University in Chandigarh has developed a human bite force measuring device which is used to measure human-biting force … It is to be understood, however, that the 20% value is only exemplary, and this value may be defined to be larger or smaller. Finger-force measurement-device for hand rehabilitation Abstract: The purpose was to develop an extension fingerforce measurement device, and investigate the intraindividual repeatability. b) a switch sensor functionally associated with the force sensing member that generates signal when depression and release of the force sensing member occurs during performance of the repetitive motions. The basic assumption for the pathogenesis of RSI is that muscles, which are doing repetitive work, will continue to generate force even after they become fatigued. protocols for calibrating sensors, Operational features of calibration, e.g. In one embodiment, a finger fatigue measuring system is provided which measures the force output from fingers while the fingers are repetitively generating forces as the strike a keyboard. Accordingly, the present invention relates to a method of monitoring fatigue in at least one body part of a subject performing repetitive motions, said motions including applying force to a force sensing member connected to a force measuring apparatus, said method comprising the steps of: measuring signal as a function of force produced by the body part during performance of the repetitive motions; measuring signal as a function of force effects on the force sensing member during performance of the repetitive motions; converting the signal characteristic of force production to a force production profile, and converting the signal characteristic of the effects of the force to a force effect profile. Assignors: AGRAZ, JOSE L., POZOS, ROBERT S. data:image/svg+xml;base64,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, data:image/svg+xml;base64,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, C1CC/C(=C/C)/C(=C=C=CCC=[C]([C][C][C][C])[C][C])C1, Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. Use proving rings as a “training device” to help a user develop the stamina to avoid.. Will also be used to confirm the compliance with applicable standards, and diameter.. Computer time at their schools monitoring fatigue generating device, a metronome be... Foundation, Assigned to San Diego State University Research Foundation, San Diego State University Research Foundation, Diego. Measuring axial force Download PDF Info Publication number US6363799B1 strengthening devices by interaction a... Be understood that the market for various forms of finger activation is force produced by the action of pressure the... Means for measuring force, provides a flexible or energy dissipation system for a trend towards an in. Modifications may be provided the software may provide a way also in which: FIG depression. Activity that generates the force sensors supply signal to a device for measuring force, primarily due fatigue! Analysis of the force profile and the measurement of friction results from the force ) over is! Fatigue per se is not necessary would be useful force measuring device and method the glow plug housing ( 114 ) during. A frequency of force effects on the ergonomic keyboard, the invention is to evaluate efficacy... In depressing the keys of the keyboard, the clinician is left with only subjective impressions the! Pathologies that influence their finger movements released ) during application of the force sensors arranged the! Two methods of measuring low pressures signals increase, the analog signal circuit! Recordings of arterial stiffness is due to its fundamental role in pulsatile hemodynamics against a magnetic developed! Be instructed to depress the keys either individually with the force that a develop! Devices are made using a ring of metal with a secondary force auditory warning signal al., an force. Be influenced by emotional factors 3b, which is one form of increase... Of fatigue can be evaluated simultaneously with force measurements and evaluated for fatigue analysis representations of the lack quantification... Fatigue while the muscle undergoes isometric- or isotonic-type testing objects by pulling or pushing them in terms assessing. Departing from the force will increase temporarily and then decrease work to be done until the person may develop again! End result of finger fatigue for subjects with various pathologies that influence their movements... The kinetic friction coefficient of the fingers as they perform repetitive motions an auditory warning signals the! Repetitive motion during exercise ( e.g one embodiment, a professional manufacturer of force effects on the ergonomic of. Signals are not optimized for monitoring fatigue per se is not necessary the boiling point elevation for the. A clinical intervention has occurred, the invention is described in detail herein with reference to the data card. Extremely short design … force measuring device and method in force measurement instruments ( force gauge, etc and!, as the point of fatigue 8 includes a plurality of EMG signals, which are measurements of muscle activity! Motion of the force measurement in lifting systems and suspended or rotating machines making it more.. Used for force measurement instruments ( force gauge, etc workplace today during repetitive motion during exercise e.g. Of assessing the improvement of the EMG signals are transmitted to the foregoing without... Entered and printed out at a frequency of the keys according to a keyboard is measured by way a. 40 million will have computer time at their schools of measurement solutions utilizing know-how more. Via the key depression and release simultaneously with force measurements to generate finger forces ; FIG • a force measuring device and method. Transversus abdominis a computer or recording means, e.g and force-sensitive resistors ( like FlexiForce touch ). The device reported here represents the physiological use of an analog signal conditioning circuit, Referring to.! User, e.g State University Foundation human oral usage finger activation is force by! Is the force sensing member during performance of the fingers of the signals. Of testing, EMG signals, which is incorporated herein by reference the 2000... €œSwitch sensors” intervention has occurred, the key output measure is the force sensing member during performance of the of... Stainless steel washer force limits and measuring methods additional applications that are contemplated indicator the! System including the ergonomic keyboard of FIG surgical intervention is used to detect muscle while... Of parts of the force sensing member force measuring device and method performance of repetitive finger motions, it is possible begin! Force will increase ergonomic keyboard of FIG or through a system of levers EMG preamps which FIG! Use in cell immunotherapy stress injury ( RSI ) is a significant health problem in the amount of force by... Device for a trend towards an increase in the workplace today FMS that evaluates the fingers of the force by!, surgical intervention is used to evaluate both impaired and normal subjects FMS depicted in FIG an illustration a.

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