Force measurement system having a displaceable force measurement assembly
First Claim
1. A force measurement system having a displaceable force measurement assembly, the force measurement system comprising:
- a force measurement assembly configured to receive a subject, the force measurement assembly including;
a top surface for receiving at least one portion of the body of the subject; and
a plurality of load cells, each of the plurality of load cells configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject;
at least one actuator operatively coupled to the force measurement assembly, the at least one actuator configured to displace the force measurement assembly;
a base assembly having a stationary portion and a displaceable portion, the force measurement assembly forming a part of the displaceable portion of the base assembly, the at least one actuator configured to rotate the force measurement assembly relative to the stationary portion of the base assembly about a transverse rotational axis disposed above the top surface of the force measurement assembly;
at least one visual display device having an output screen configured to at least partially circumscribe three sides of a torso of the subject, the at least one visual display device configured to display one or more virtual reality scenes on the output screen so that the scenes are viewable by the subject, wherein the one or more virtual reality scenes are configured to create a simulated environment for the subject, wherein opposed sides of the output screen of the at least one visual display device inwardly converge towards the displaceable portion of the base assembly; and
one or more data processing devices operatively coupled to the force measurement assembly, the at least one actuator, and the at least one visual display device, the one or more data processing devices configured to receive the one or more signals that are representative of the forces and/or moments being applied to the top surface of the force measurement assembly by the subject, and to convert the one or more signals into output forces and/or moments, the one or more data processing devices further configured to selectively displace the force measurement assembly using the at least one actuator.
1 Assignment
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Accused Products
Abstract
A force measurement system having a displaceable force measurement assembly includes: a force measurement assembly with a surface configured to receive a subject, and having at least one force transducer; at least one actuator operatively coupled to the force measurement assembly, the at least one actuator configured to displace the force measurement assembly; at least one visual display device having an output screen, the at least one visual display device configured to display one or more virtual reality scenes on the output screen so as to create a simulated environment for the subject; and one or more data processing devices operatively coupled to the force measurement assembly, the at least one actuator, and the at least one visual display device. In one or more embodiments, a method for testing a subject disposed on a displaceable force measurement assembly is further disclosed.
191 Citations
21 Claims
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1. A force measurement system having a displaceable force measurement assembly, the force measurement system comprising:
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a force measurement assembly configured to receive a subject, the force measurement assembly including; a top surface for receiving at least one portion of the body of the subject; and a plurality of load cells, each of the plurality of load cells configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject; at least one actuator operatively coupled to the force measurement assembly, the at least one actuator configured to displace the force measurement assembly; a base assembly having a stationary portion and a displaceable portion, the force measurement assembly forming a part of the displaceable portion of the base assembly, the at least one actuator configured to rotate the force measurement assembly relative to the stationary portion of the base assembly about a transverse rotational axis disposed above the top surface of the force measurement assembly; at least one visual display device having an output screen configured to at least partially circumscribe three sides of a torso of the subject, the at least one visual display device configured to display one or more virtual reality scenes on the output screen so that the scenes are viewable by the subject, wherein the one or more virtual reality scenes are configured to create a simulated environment for the subject, wherein opposed sides of the output screen of the at least one visual display device inwardly converge towards the displaceable portion of the base assembly; and one or more data processing devices operatively coupled to the force measurement assembly, the at least one actuator, and the at least one visual display device, the one or more data processing devices configured to receive the one or more signals that are representative of the forces and/or moments being applied to the top surface of the force measurement assembly by the subject, and to convert the one or more signals into output forces and/or moments, the one or more data processing devices further configured to selectively displace the force measurement assembly using the at least one actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for testing a subject disposed on a displaceable force measurement assembly, the method comprising the steps of:
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providing a force measurement assembly configured to receive a subject, the force measurement assembly including; a top surface for receiving at least one portion of the body of the subject; and at least one force transducer, the at least one force transducer configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject; providing at least one actuator operatively coupled to the force measurement assembly, the at least one actuator configured to displace the force measurement assembly; providing a base assembly having a stationary portion and a displaceable portion, the force measurement assembly forming a part of the displaceable portion of the base assembly, the at least one actuator configured to rotate the force measurement assembly relative to the stationary portion of the base assembly about a transverse rotational axis disposed above the top surface of the force measurement assembly; providing at least one visual display device having an output screen configured to at least partially circumscribe three sides of a torso of the subject, the at least one visual display device configured to display one or more virtual reality scenes on the output screen so that the scenes are viewable by the subject, wherein opposed sides of the output screen of the at least one visual display device inwardly converge towards the displaceable portion of the base assembly; providing one or more data processing devices operatively coupled to the force measurement assembly, the at least one actuator, and the at least one visual display device, the one or more data processing devices configured to receive the one or more signals that are representative of the forces and/or moments being applied to the top surface of the force measurement assembly by the subject and to convert the one or more signals into output forces and/or moments, and the one or more data processing devices configured to selectively displace the force measurement assembly using the at least one actuator; positioning the subject on the top surface of the force measurement assembly and at least partially within the output screen of the at least one visual display device such that the output screen at least partially circumscribes three sides of the torso of the subject; selectively displacing the displaceable portion of the base assembly, the force measurement assembly, and the subject disposed thereon relative to the stationary portion of the base assembly using the at least one actuator, wherein selectively displacing the displaceable portion of the base assembly includes rotating the force measurement assembly about the transverse rotational axis disposed above the top surface of the force measurement assembly; sensing, by utilizing the at least one force transducer, one or more measured quantities that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject and outputting one or more signals representative thereof; converting, by using the one or more data processing devices, the one or more signals that are representative of the forces and/or moments being applied to the top surface of the force measurement assembly by the subject into output forces and/or moments; and displaying one or more virtual reality scenes to the subject utilizing the output screen of the at least one visual display device, the one or more virtual reality scenes creating a simulated environment for the subject. - View Dependent Claims (16, 17, 18)
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19. A force measurement system having a displaceable force measurement assembly, the force measurement system comprising:
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a force measurement assembly configured to receive a subject, the force measurement assembly including; a top surface for receiving at least one portion of the body of the subject; and at least one force transducer, the at least one force transducer configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject; at least one first actuator operatively coupled to the force measurement assembly, the at least one first actuator configured to rotate the force measurement assembly about a transverse rotational axis disposed above the top surface of the force measurement assembly, the at least one first actuator disposed above the top surface of the force measurement assembly; at least one second actuator operatively coupled to the force measurement assembly, the at least one second actuator configured to translate the force measurement assembly, the at least one second actuator disposed below the top surface of the force measurement assembly; a base assembly having a stationary portion and a displaceable portion, the force measurement assembly forming a part of the displaceable portion of the base assembly, the at least one first actuator and the at least one second actuator configured to displace the force measurement assembly relative to the stationary portion of the base assembly; one or more data processing devices operatively coupled to the force measurement assembly, the at least one first actuator, and the at least one second actuator, the one or more data processing devices configured to receive the one or more signals that are representative of the forces and/or moments being applied to the top surface of the force measurement assembly by the subject and to convert the one or more signals into output forces and/or moments, the one or more data processing devices configured to selectively displace the force measurement assembly using the at least one first actuator and the at least one second actuator; and at least one visual display device having an output screen configured to at least partially circumscribe three sides of a torso of the subject, the at least one visual display device configured to display one or more virtual reality scenes on the output screen so that the scenes are viewable by the subject, wherein the one or more virtual reality scenes are configured to create a simulated environment for the subject, wherein opposed sides of the output screen of the at least one visual display device inwardly converge towards the displaceable portion of the base assembly. - View Dependent Claims (20, 21)
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Specification