Moving sensor using mechanical vibrations
AssigneeThe Technology Partnership Public Limited Company
InventorsGraham Scott Gutsell, Peter John Taylor
Life of this patent
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Abstract
A movement sensor (40) for a process device has a sensor tip (42); means (41) for transmitting the vibrations from the sensor tip to a transducer means (43), the transducer means electrically detecting the resulting vibrations as movement occurs and producing an output signal. Means (70) can be provided for filtering the output signal below and above respective predetermined frequencies and producing a movement detection signal when the output signal lies between the predetermined frequencies.
Claims14
A hand-held device comprising:
- a movement sensor for sensing movement of the device across a surface, the sensor including
- a sensor tip for application to the surface and adapted to vibrate in response to movement of the tip across said surface in any direction;
- transducer means;
- means for transmitting the vibrations from the sensor tip to the transducer means, transducer means electrically detecting the resulting vibrations as movement occurs and producing an output signal;
- and
- means for filtering the output signal below about 1000 Hz and producing a movement signal indicative of movement of the tip across said surface when the output signal lies above about 1000 Hz, said movement signal controlling the hand-held device when the sensor tip is in moving contact with respect to the surface.
A movement sensor for controlling a hand-held device in response to movement of the device across a surface, the sensor comprising:
- a vibratorily mounted sensor tip for application to the surface and vibrating in response to movement of the tip across said surface in any direction;
- transducer means;
- means for transmitting the vibrations from the sensor tip to the transducer means, the transducer means electrically detecting the resulting vibrations as movement occurs and producing an output signal;
- means for filtering the output signal below about 1000 Hz and producing a signal representing movement of the tip across said surface when the output signal lies above about 1000 Hz;
- and
- means for detecting the speed of movement of the sensor tip over the surface.
Dependencies are inferred from the claim text.