Measurement method and device for the measurement of a path covered
First Claim
1. A method for measuring a path traveled by a first object relative to a second object, comprising:
- deforming a measurement body by moving the first object relative to the second object;
deforming a first deformation sensor and a second deformation sensor in response to the deformation of the measurement body;
emitting a signal from each sensor indicative of the deformation; and
evaluating the signals to determine the path traveled by the first object relative to the second object.
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Accused Products
Abstract
With a measurement method and a measurement device for the measurement of a path covered by a first object (1) in relation to a second object (2), a measurement body (3) is deformed by a relative movement of the objects and at least a first deformation sensor (4) assigned to the measurement body (3) converts the measurement body (3) deformation into a measurement signal. The measurement signal is converted by an evaluation device (20) into information on the path covered. In order to increase the precision and measurement speed in a way that is simple structurally and saves space, the measurement signal is emitted when an area of the measurement body (3) is stretched along the longitudinal axis (6) of the measurement body (3) and a further area is compressed along the longitudinal axis (6) of the measurement body (3).
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Citations
29 Claims
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1. A method for measuring a path traveled by a first object relative to a second object, comprising:
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deforming a measurement body by moving the first object relative to the second object; deforming a first deformation sensor and a second deformation sensor in response to the deformation of the measurement body; emitting a signal from each sensor indicative of the deformation; and evaluating the signals to determine the path traveled by the first object relative to the second object. - View Dependent Claims (2, 23, 24, 25)
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3. Measurement method for the measurement of a path covered by a first object in relation to a second object, whereby a measurement body is deformed by the relative movement of the objects and at least one first deformation sensor assigned to the measurement body converts the measurement body deformation into a first measurement signal and then an evaluation device converts the first measurement signal at least into information on the path covered, comprising:
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the measurement body undergoes a deformation in which it is stretched in an area along a measurement body longitudinal axis and compressed in a further area along the measurement body longitudinal axis, whereby the first deformation sensor is stretched or compressed in one of the areas and a change in a physical property of the first deformation sensor caused by the stretching/compression is emitted as the first measurement signal; and at least a second deformation sensor arranged essentially spirally around the measurement body longitudinal axis in the opposite direction to the first deformation sensor emits a second measurement signal. - View Dependent Claims (4, 5)
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6. An apparatus for measuring a path traveled by a first object relative to a second object, the apparatus comprising:
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a measurement body that is deformable when the first object moves relative to the second object; a first deformation sensor and a second deformation sensor, each sensor deformable by the deformation of the measurement body and able to emit a measurement signal corresponding to its deformation; and an evaluation device capable of evaluating the signals to determine the path traveled by the first object relative to the second object. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 26, 27, 28, 29)
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16. Measurement device for the measurement of a path covered by a first object in relation to a second object with at least one measurement body which can be deformed by the relative movement, to which at least a first deformation sensor is allocated to produce a measurement signal corresponding to the deformation, comprising:
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the deformed measurement body is stretched in an area along a measurement body longitudinal axis and is compressed in a further area along its measurement body longitudinal axis, whereby the first deformation sensor is essentially positioned along one of the areas; and wherein the first and second deformation sensors are connected at one end with each other and at their other ends in each case to a power source.
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17. Measurement device for the measurement of a path covered by a first object in relation to a second object with at least one measurement body which can be deformed by the relative movement, to which at least a first deformation sensor is allocated to produce a measurement signal corresponding to the deformation, comprising:
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the deformed measurement body is stretched in an area along a measurement body longitudinal axis and is compressed in a further area along its measurement body longitudinal axis, whereby the first deformation sensor is essentially positioned along one of the areas; and at least the first and second deformation sensors are connected up in a bridge circuit. - View Dependent Claims (18, 20, 21, 22)
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19. Measurement device for the measurement of a path covered by a first object in relation to a second object with at least one measurement body which can be deformed by the relative movement, to which at least a first deformation sensor is allocated to produce a measurement signal corresponding to the deformation, comprising:
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the deformed measurement body is stretched in an area along a measurement body longitudinal axis and is compressed in a further area along its measurement body longitudinal axis, whereby the first deformation sensor is essentially positioned along one of the areas; and the measurement body is electrically insulated in relation to the first and/or second object.
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Specification