Abstract: Pressure sensor systems for measuring a liquid pressure and deriving a liquid level from the measured pressure using gas pressure sensing devices. In one embodiment, liquid pressure results in compression or decompression of a trapped gas (as an example, air), wherein the gas pressure is detected by a gas pressure sensing device directly or a gas pressure sensing device that is protected inside a flexible pouch filled with a liquid. In another embodiment, a gas pressure sensing device is packaged in a flexible pouch filled with an inert liquid to protect the sensing device and circuit thereof from external contaminants while accurately transferring pressure from the liquid through a protective barrier. Application of such sensors in a wireless flood or a wireless liquid level measurement system is described as well.

Abstract: Automatic identification and pairing authentication systems, devices, and methods capable of identifying and verifying the pairing of kegs and taps regardless of the position of a tap relative to a keg on which it is installed. Such a system includes an identification (ID) unit integrated onto a keg and a pairing device integrated onto a tap, wherein the ID unit and the pairing device communicate through a wireless connection.

Abstract: Automatic identification and pairing authentication systems, devices, and methods capable of identifying and verifying the pairing of kegs and taps regardless of the position of a tap relative to a keg on which it is installed. Such a system includes an identification (ID) unit integrated onto a keg and a pairing device integrated onto a tap, wherein the ID unit and the pairing device communicate through a wireless connection.

Abstract: Pressure sensor systems for measuring a liquid pressure and deriving a liquid level from the measured pressure using gas pressure sensing devices. In one embodiment, liquid pressure results in compression or decompression of a trapped gas (as an example, air), wherein the gas pressure is detected by a gas pressure sensing device directly or a gas pressure sensing device that is protected inside a flexible pouch filled with a liquid. In another embodiment, a gas pressure sensing device is packaged in a flexible pouch filled with an inert liquid to protect the sensing device and circuit thereof from external contaminants while accurately transferring pressure from the liquid through a protective barrier. Application of such sensors in a wireless flood or a wireless liquid level measurement system is described as well.