Abstract: A wireless near-field gas sensor system includes a wireless communications tag and a printed gas sensor. The wireless communications tag includes an integrated circuit and a wireless antenna. The printed gas sensor includes a sensor housing having one or more gas access regions, an electrolyte cavity positioned within the sensor housing, an electrolyte housed within the electrolyte cavity, and one or more electrodes positioned within the electrolyte cavity in electrochemical engagement with the electrolyte, and a resistor communicatively coupled to the one or more electrodes and the wireless communications tag.

Abstract: A printed gas sensor is disclosed. The sensor may include a partially porous substrate, an electrode layer, an electrolyte layer, and an encapsulation layer. The electrode layer comprises one or more electrodes that are formed on one side of the porous substrate. The electrolyte layer is in electrolytic contact with the one or more electrodes. The encapsulation layer encapsulates the electrode layer and electrolyte layer thereby forming an integrated structure with the partially porous substrate.

Abstract: Some embodiments include an electrochemical sensor. The electrochemical sensor has a lid element comprising a substrate, multiple electrodes, multiple interior contacts electrically coupled to the multiple electrodes, a base element configured to be coupled to the lid element, and an electrolyte element. The base element includes a sensor cavity, multiple exterior contacts located at an exterior surface of the base element, and multiple signal communication channels comprising multiple signal communication lines, and the electrolyte element is located in the sensor cavity. When the lid element is coupled to the base element, the multiple electrodes are located in the sensor cavity, the multiple electrodes are in electrolytic communication with the electrolyte element, the multiple interior contacts are located in the sensor cavity, and the multiple interior contacts are electrically coupled to the multiple exterior contacts by the multiple signal communication lines.

Abstract: An electronic device cover system that includes an electronic device cover engageable with an electronic device, a gas sensor coupled to the electronic device cover, and a control circuit communicatively coupled to the gas sensor and communicatively engageable with an electronic device. When the gas sensor detects a presence of a target gas, the control circuit receives a signal output by the gas sensor and outputs a signal receivable by an electronic device.

Abstract: Systems and methods for automated self-compensation are described herein. Accordingly, some embodiments of a method may include measuring a signal from an electrochemical sensor device, where the signal relates to the presence of a predetermined gas, and where the electrochemical sensor device includes a potentiostat, measuring an internal property of the electrochemical sensor device by electronically pinging the potentiostat, and receiving a response from the potentiostat. In some embodiments, the method may include interpreting the response through an associative relationship between the electrochemical sensor device and a data acquisition and calculation module, determining an effect of an environmental factor from the response, compensating for effects of the environmental factor by adjusting the signal from the electrochemical sensor device and outputting the adjusted signal.