Electronic depth gauge with variable electrical resistance sensing
First Claim
1. A digital depth gauge apparatus for measuring a depth of a hole in, or surface of, an object, the apparatus comprising:
- an elongated reader body that includes a distal end and a proximal end having a longitudinal axis;
a user interface including a display and at least one actuator that controls operation of at least one of the display and the apparatus;
a probe that extends from the distal end of the reader body, the probe including a tip for locating a distal surface of the object;
the reader body proximal end configured to abut an other surface of the object; and
an electrical resistance-based sensor fixedly positioned relative to at least one of;
a) the reader body, and b) the probe, and movably positioned relative to, respectively, at least one of;
b) the probe, and a) the reader body, the sensor comprising an interface to the user interface display and having an output indicating a relative distance between the probe tip and the proximal end of the reader body.
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Accused Products
Abstract
A digital depth gauge apparatus is provided for measuring a depth of a hole in, or surface of, an object using a variable-resistance sensor. The apparatus comprises an elongated reader body that includes a distal end and a proximal end having a longitudinal axis and a user interface including a display and at least one actuator that controls operation of at least one of the display and the apparatus. The apparatus includes a probe that extends from the distal end of the reader body, the probe including a tip for locating a distal surface of the object. The reader body proximal end is configured to abut an other surface of the object. An electrical resistance-based sensor is provided to determine an extension distance of the probe from the body.
65 Citations
17 Claims
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1. A digital depth gauge apparatus for measuring a depth of a hole in, or surface of, an object, the apparatus comprising:
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an elongated reader body that includes a distal end and a proximal end having a longitudinal axis; a user interface including a display and at least one actuator that controls operation of at least one of the display and the apparatus; a probe that extends from the distal end of the reader body, the probe including a tip for locating a distal surface of the object; the reader body proximal end configured to abut an other surface of the object; and an electrical resistance-based sensor fixedly positioned relative to at least one of;
a) the reader body, and b) the probe, and movably positioned relative to, respectively, at least one of;
b) the probe, and a) the reader body, the sensor comprising an interface to the user interface display and having an output indicating a relative distance between the probe tip and the proximal end of the reader body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification