Optical feedback control mechanism for solid reactant strand positioning
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United States of America Patent
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Issued Date -
Nov 16, 2023
app pub date -
May 9, 2023
filing date -
May 9, 2023
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Abstract
The present invention provides a method and apparatus for controlled burning of experimental solid fuel test strands. The fuel test strand is advanced by a screw attached to a computer-controlled stepper motor. The stepper motor controls the fuel test strand position via a proportional-integral-derivative (PID) control loop, adjusting velocity based on transmission of a diode laser beam located at the desired fuel surface position. This provides real-time monitoring of fuel strand position and fuel regression rate during combustion experiments.
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