Liquid measurement systems, apparatus, and methods optimized with temperature sensing

A method, comprising:

• causing at least one light source to emit electromagnetic radiation toward a drug container;
• detecting the emitted electromagnetic radiation through the drug container with a plurality of sensors;
• measuring at least one temperature associated with a liquid in the drug container with a temperature sensor;
• converting data from the plurality of sensors into a signal signature including a plurality of values representative of the electromagnetic radiation detected by each sensor from the plurality of sensors;
• and
• correcting the signal signature based on the at least one measured temperature and one or more of a calibration temperature and background electromagnetic radiation, in which the correcting of the signal signature includes using both the at least one measured temperature, and the one or more of the calibration temperature and the background electromagnetic radiation in determining one or more adjustments for the plurality of values of the signal signature.

A health management system, comprising:

• a drug delivery device including a drug reservoir;
• and
• a dose measurement system configured to be removably coupleable to the drug delivery device, the dose measurement system including:
• at least one light source disposed and configured to emit electromagnetic radiation toward the drug reservoir,
• a plurality of sensors optically coupleable to the light source, each sensor of the plurality of sensors disposed and configured to detect a portion of the electromagnetic radiation emitted by the at least one light source;
• one or more temperature sensors disposed and configured to measure at least one temperature associated with a liquid in the drug delivery device;
• and
• at least one processor configured to receive data representative of the portion of the detected electromagnetic radiation from each of the plurality of sensors and the at least one measured temperature from the one or more temperature sensors, the at least one processor operable to:
• convert the data into a signal signature including a plurality of values representative of the electromagnetic radiation detected by each sensor from the plurality of sensors, and
• correct the signal signature based on the at least one measured temperature and one or more of a calibration temperature and background electromagnetic radiation, in which both the at least one measured temperature, and the one or more of the calibration temperature and the background electromagnetic radiation are used in determining one or more adjustments for the plurality of values of the signal signature, and the signature signal as corrected being representative of a volume of the liquid remaining in the drug reservoir.