Seed Intellectual Property Law Group LLP
Calibration bath with acoustic liquid level sensor
Systems and methods that provide measurement of liquid levels in a container, such as a calibration bath container, may utilize an acoustic transducer subsystem that includes one or more acoustic transducers that are controlled by a controller. The acoustic transducer subsystem emits acoustic signals toward a surface of a liquid in a container, and detects reflected acoustic signals that are reflected from the surface of the liquid. The liquid level sensor utilizes an acoustic waveguide subsystem to allow the acoustic transducer subsystem to be spaced apart from the liquid, which protects the acoustic transducer system another other components from damage due to heat, liquid, and vapor. The acoustic waveguide subsystem also channels the emitted and reflected acoustic signals to prevent substantial scattering of the signals within the container, which greatly improves the accuracy of the liquid level sensor.
Fluke Corporation
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Richard W.
Walker