Probe for high speed scanning
First Claim
1. A probe for use on a coordinate positioning apparatus comprising:
- a housing attachable to an arm of the coordinate positioning apparatus and a stylus mounted on a stylus support member, said stylus having a tip, and said stylus and stylus support member being deflectable with respect to the housing;
a first transducer system which measures movement of the stylus support member relative to the arm of the coordinate positioning apparatus;
a second transducer system which measures movement of the tip of the stylus relative to the stylus supporting member;
a tip position calculator which combines outputs from the first and second transducer systems to provide a measurement of total stylus deflection.
1 Assignment
0 Petitions
Accused Products
Abstract
A measurement probe (5) which comprises a housing (16) for mounting on an arm (6) of a coordinate positioning apparatus (2) and a stylus (10) mounted on a stylus support member (28). The stylus (10) and the stylus support member (28) are deflectable with respect to the housing (16). A first transducer system (40-48) measures movement of the stylus support member (28) relative to the arm (6) of the coordinate positioning apparatus (2). A second transducer system (38) measures movement of the stylus tip (12) relative to the stylus supporting member (28). A measurement of total stylus deflection is achieved by combining data from the first and second transducer systems.
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Citations
18 Claims
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1. A probe for use on a coordinate positioning apparatus comprising:
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a housing attachable to an arm of the coordinate positioning apparatus and a stylus mounted on a stylus support member, said stylus having a tip, and said stylus and stylus support member being deflectable with respect to the housing;
a first transducer system which measures movement of the stylus support member relative to the arm of the coordinate positioning apparatus;
a second transducer system which measures movement of the tip of the stylus relative to the stylus supporting member;
a tip position calculator which combines outputs from the first and second transducer systems to provide a measurement of total stylus deflection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A probe for use on a coordinate positioning apparatus comprising:
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a housing attachable to an arm of the coordinate positioning apparatus and a stylus having a stylus tip, said stylus being deflectable with respect to the housing;
a first transducer system which measures movement of the stylus relative to the arm of the coordinate positioning apparatus;
a second transducer system which measures movement of the tip of the stylus relative to the first transducer system;
a tip position calculator which combines outputs from the first and second transducer systems to provide a measurement of total stylus deflection.
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18. A method of measuring a surface of an object with a probe, said probe comprising a housing and a stylus mounted on a stylus support member, said stylus having a stylus tip, and said stylus and stylus support member being deflectable with respect to the housing, the method comprising the steps of:
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mounting the probe on an arm of a coordinate positioning apparatus;
positioning the probe so that the stylus is in contact with the surface to be measured and moving the probe along said surface with the stylus remaining in contact with said surface;
obtaining data from a first transducer system which measures movement of the stylus supporting member relative to the arm of the coordinate positioning apparatus;
obtaining data from a second transducer system which measures movement of the tip of the stylus relative to the stylus supporting member;
and combining the data from the first and second transducer systems to produce a measurement of total probe deflection.
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Specification