Wirelessly sensing properties of a closed environment and devices thereof
Inventors
SCABOO, Kristian Michael • Jensen, Morten Juel • Pontis, George • Reynolds, Paul • ROMANDER, Ethan
Assignees
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Publication Number
US-12169184-B2
Publication Date
2024-12-17
Expiration Date
Abstract
A wireless sensor that can measure properties of a substance and transmits the properties to a remote wireless receiver is disclosed. The wireless sensor can be fully enclosed within a container containing the substance, for example, allowing remote monitoring of the properties of the substance without compromising the integrity of the closed system.
Core Innovation
The invention relates to a wireless sensing system for a closed container in which a fully enclosed wireless sensing device is positioned in a first liquid and measures properties of the liquid. The device includes a wireless transmitter and sensors for measuring pH using a pH sensor and a reference sensor, and for measuring a temperature of the first liquid. Data is communicated from the sensing device to a wireless receiver that is part of a receiver instrument.
In the described arrangements, the wireless receiver can communicate with and wirelessly power the submersible device, including operation without a battery. The pH is determined by determining a voltage potential difference between the pH sensor and the reference sensor, and the pH calculation is compensated based on the first liquid temperature from the temperature sensor.
The system also integrates agitating the first liquid by using a magnetic force mechanism. The submersible device comprises a first magnet, and the receiver instrument comprises a magnetic field creator that creates and alters a magnetic field exerting a magnetic force on the first magnet, so that agitating comprises moving the submersible device through the first liquid.
Claims Coverage
The document includes two independent method claims. Each independent claim centers on wireless submersion of a pH sensing device with a reference and temperature sensor, measuring pH via a voltage potential difference, communicating data to a receiver instrument, and either magnetic agitation or wireless batteryless powering.
Wireless submersible pH sensing with receiver communication
Positioning a container on a receiver instrument having a wireless receiver; positioning a submersible device in the first liquid with a pH sensor, a reference sensor, a temperature sensor, and a wireless transmitter in communication with the wireless receiver; communicating data to the receiver instrument.
Voltage potential difference pH measurement with temperature sensing
Measuring pH of the first liquid by determining a voltage potential difference between the pH sensor and the reference sensor; measuring a temperature of the first liquid with the temperature sensor.
Magnetic-field-driven agitation using a magnet on the submersible device
Agitating the first liquid by moving the submersible device in the first liquid with a magnetic force exerted by a magnetic field created and altered by the receiver instrument magnetic field creator acting on the first magnet.
Batteryless wireless powering and temperature-compensated pH calculation
Powering the submersible device with wireless energy such that the submersible device does not contain a battery; calculating the pH based on the voltage potential difference between the pH sensor and the reference sensor and compensating the pH calculation based on the first liquid temperature from the temperature sensor.
Glass pH electrode and porous-frit reference with gel electrolyte
Measuring pH where the pH sensor comprises a glass electrode sensitive to hydrogen ions, and where the reference sensor comprises a porous frit with gel electrolyte and an electrode.
Overall, the claims cover a wireless submersible pH determination method using a voltage potential difference between a pH sensor and a reference sensor with temperature sensing, communicating to a wireless receiver, and either magnetic agitation via a receiver magnetic field acting on a magnet on the device or wireless batteryless powering with temperature-compensated pH calculation, including a glass electrode pH sensor and a porous-frit gel electrolyte reference sensor.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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