Patent ID: 8402833
Filing Date: 2013-03-26
Classification: G01L

Abstract:
1. A gauge, comprising: a housing; a fitting having an inlet, an internal flow path, and an outlet; a sensor in fluidic communication with the internal flow path, the sensor adapted to measure a characteristic of a fluid in fluidic contact therewith and output a signal representing the value of the measured characteristic; a control unit in signal communication with the sensor, the control unit adapted to receive the output from the sensor and output a command signal based on the output of the sensor; a stepper motor adapted to rotate a rotor shaft, the stepper motor in signal communication with the control unit; a power supply in electrical communication with the sensor and the control unit; and an indicator needle mounted to the rotor shaft; wherein the control unit transmits the command signal to the stepper motor; wherein the stepper motor receives the command signal from the control unit and drives the rotor shaft according to the command signal.