Photo tachometer for a digital multimeter
First Claim
Patent Images
1. An apparatus for determining a rotational speed of an object, comprising:
- an analyzer comprising a display device and a plurality of receptacles for inserting a plurality of devices for measuring data;
a device for emitting and detecting light, wherein said device is linked to said analyzer through said plurality of receptacles, said device emits light in a direction of a rotating assembly, said light is reflected from said rotating assembly and detected by said device whereupon said light is converted to a signal, said signal is transmitted to said analyzer to determine the rotational speed; and
a reflective surface attached to said rotational assembly, said surface reflects said light towards said device whereupon it is detected and converted to a signal.
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Abstract
A apparatus for determining the rotational speed of an object or an assembly. The apparatus includes a device that emits a light as well as detect the light reflected from the measured object. A reflective surface is attached to the object to enable it to reflect the light from the device. The device is connected to an analyzer that reads the detected signal and display the results.
13 Citations
21 Claims
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1. An apparatus for determining a rotational speed of an object, comprising:
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an analyzer comprising a display device and a plurality of receptacles for inserting a plurality of devices for measuring data;
a device for emitting and detecting light, wherein said device is linked to said analyzer through said plurality of receptacles, said device emits light in a direction of a rotating assembly, said light is reflected from said rotating assembly and detected by said device whereupon said light is converted to a signal, said signal is transmitted to said analyzer to determine the rotational speed; and
a reflective surface attached to said rotational assembly, said surface reflects said light towards said device whereupon it is detected and converted to a signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for determining the rotational speed of an object comprising:
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means for analyzing comprising a display means and means for connecting data measuring devices;
means for emitting and detecting a light, said means for emitting directs said light in a direction of a rotating assembly, said light is reflected from said rotating assembly and detected by said means for detecting; and
means for reflecting attached to said rotating assembly, said means for reflecting reflects said light in a direction of said means for detecting. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for determining the rotational speed of an object comprising:
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providing an apparatus comprising a display device and a plurality of receptacles;
connecting a light emitting and detecting device to said plurality of receptacles;
attaching a reflective surface to a rotational assembly;
emitting a light towards said rotational assembly by said light emitting and detecting device;
reflecting said light by the reflective surface; and
directing said light towards said light emitting and detecting device. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A plug-in apparatus for a digital tester to determine rotational speed comprising:
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a device emitting and detecting light in and from a direction of a rotational assembly wherein said device is linked to said digital tester; and
a reflective surface attached to said rotational assembly, wherein said light is reflected from said reflective surface of said rotational assembly towards said device, and wherein said reflected light is detected by said device and transmitted to said digital tester. - View Dependent Claims (20, 21)
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Specification