Mimic gauge for a chart recorder

Details Mimic gauge for a chart recorder Mimic gauge for a chart recorder

G - Physics

01

D

G01D 15/00 (2006.01) G06F 3/00 (2006.01) G06F 17/40 (2006.01)

Patent

CA 2593146

The present invention is directed to a data logger for electrically recording positions of a motional member in a chart recorder. A mechanical-to-electrical converter translates the mechanical positions into electrical position signals. The mechanical-to-electrical includes a mechanical coupler for securing at least a portion of the converter to a motional member in a mechanical chart recorder and a position sensor for measuring the spatial positions of the motional member as it moves in response to movements generated in a mechanical measurement instrument. The position sensor generates electrical position signals that are fed to a field processor. The field processor transforms the electrical position signals into position data representative of the spatial position by applying a calibration algorithm that uses calibration coefficients determined for the particular position sensor being employed. The position sensor may measure rotational movement, such as from a shaft in the chart recorder, or linear movement, such as from a linkage in the chart recorder. Angular sensors include inclinometers, potentiometers, magnetic field sensors and optical sensors, while linear sensors include potentiometers, magnetic field sensors and optical sensors. Also provided in the field processor is storage capacity for storing data relating to the raw electrical signals or the measurement data, as well as for application software. Optionally, a transmitter may be incorporated in the field processor for transmitting the position information to a remote location.

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