| 摘要 |
A probe for use in three dimensional measuring and marking machines comprises a contact member 15, 16 pivotally mounted in a housing 12 via changes 31, 32 and a leaf spring 24, together with a spring 40 acting along the direction of the member 15. A soft magnetic holder 37 on the inner end of member 15 carries three spaced magnets 22 in close proximity to corresponding magnetoresistors 21 mounted in the housing. The values of the resistors provide an indication of the direction and amount of deflection of the contact member along X, Y and Z coordinate directions, and may provide a switching signal. <IMAGE>
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