Motion modulation fluidic analyzer system

A method of measuring a property of a fluid with a fluid analyzer, comprising:

• generating an optical beam with an optical source;
• moving, with a motion scanning system, interrogation spatial positions in a fluidic cell where the optical beam interacts with the fluidic cell;
• delivering the optical beam substantially from the interrogation spatial positions to an optical detector with a de-scanning mechanism;
• generating a motion scanning signal for controlling the operation of the motion scanning system;
• sampling a first fluid output signal from the optical detector at one interval of the motion scanning signal when the optical beam interacts with a first fluid at a first interrogation spatial position;
• sampling optical detector signals as the motion scanning system moves interrogation spatial positions in a repeating scanning pattern;
• and
• processing the series of optical detector signals to remove signal components not generated by an interaction of the optical beam and the first fluid to determine a measurement value indicative of an optically measured characteristic of the first fluid.

A method of measuring a property of a fluid with a fluid analyzer, comprising:

• generating an optical beam with an optical source;
• moving, with a motion scanning system, interrogation spatial positions in a fluidic cell where the optical beam interacts with the fluidic cell;
• delivering the optical beam substantially from the interrogation spatial positions to an optical detector with a de-scanning mechanism;
• generating a motion scanning signal for controlling the operation of the motion scanning system;
• sampling a first fluid output signal from the optical detector at one interval of the motion scanning signal when the optical beam interacts with a first fluid at a first interrogation spatial position;
• sampling a second fluid output signal from the optical detector at a second interval of the motion scanning system when the optical beam interacts more with a second fluid than the first fluid;
• and
• determining from the first fluid and second fluid output signals a measurement value indicative of an optically measured characteristic of the first fluid.

A method of measuring a property of a fluid with a fluid analyzer, comprising:

• generating an optical beam with an optical source;
• moving, with a motion scanning system, interrogation spatial positions in a fluidic cell where the optical beam interacts with the fluidic cell;
• delivering the optical beam substantially from the interrogation spatial positions to an optical detector with a de-scanning mechanism;
• generating a motion scanning signal for controlling the operation of the motion scanning system;
• sampling a first fluid output signal from the optical detector at one interval of the motion scanning signal when the optical beam interacts with a first fluid at a first interrogation spatial position;
• sampling the output signal from the optical detector at a second interval of the motion scanning system during which the optical beam interacts substantially with a particle in the first fluid;
• and
• determining from the output signal samples a measurement value indicative of an optically measured characteristic of the particle.