A detection device according to an aspect of the invention, includes: a housing including an air intake port and an air discharge port; a platelike member having a first air ventilation port and a second air ventilation port, the platelike member being provided inside the housing; a first sensor provided on an air intake port side of the first air ventilation port on a front face of the platelike member; and a second sensor provided between the first air ventilation port and the second air ventilation port on a rear face of the platelike member.

Systems and methods of preventing an event occurrence or mitigating effects of an event occurrence in an industrial facility are disclosed herein. In some embodiments, a first input is received from a first sensor and, based at least in part on the first input, an initial action is automatically generated. In response to the initial action, a second input is received from a second sensor and, based at least in part of the received first and second inputs, a likelihood of an event occurrence is determined. Based at least in part of the determined likelihood, a remedial action configured to prevent the occurrence of the event occurrence is automatically generated. In some embodiments, the remedial action is generated in real-time and can be directed to a process condition, environmental condition, or secondary source.

An apparatus for determining a presence, a concentration or a change in concentration of a target material in an environment is disclosed. The apparatus comprises first and second sensors configured to respond to the target material. The apparatus further comprises a fluid inlet in fluid communication with the environment, and a valve assembly having a first and second configuration. In the first configuration, the fluid inlet is in fluid communication with only the first sensor. In the second configuration, the fluid inlet is in fluid communication with the first sensor and the second sensor.

Disclosed herein are systems and methods for detecting a gas leak at a field site, the system having at least one gas sensor, an acoustic sensor, and a processing unit having a processor and a non-transitory computer readable storage media storing instructions, the processing unit configured to receive signals from the at least one gas sensor and the acoustic sensor. When the instructions are executed by the processor of the processing unit, the signals received from the at least one gas sensor and the acoustic sensor are analyzed to determine a presence of a gas leak, the presence of the gas leak determined if at least one signal received from the gas sensor is above a first gas threshold value and at least one signal received from the acoustic sensor is above a first acoustic threshold value.

An air quality monitor carried by a smart phone and an air quality monitoring system carried by the smart phone are provided. The quality monitor carried by the smart phone includes a shell body, wherein a sensor is provided inside the shell body; a plug is provided on the shell body for being connected to the smart phone; a signal output terminal and a power input terminal of the sensor are both connected to the plug; wherein no power source or power source managing module is provided inside the shell body; no display module is provided on the shell body. Product weight and volume are greatly reduced, in such a manner that a product of the present invention is easy to carry. An air quality monitoring system carried by a smart phone includes: the smart phone, wherein the smart phone comprises a port and a signal processing system.

A portable gas detecting and monitoring apparatus includes a case having a continuous sidewall including a first end closed a first end cap, and a second end closed by a second end cap connected sealably and removably to the continuous sidewall. The continuous sidewall is triangular between the closed end and the open having three sides and three corners, two of the three sides being straight and equal in length, one of the three sides being rounded, and each of the three corners being rounded. A gas detection and monitoring unit mounted in the case includes gas, pressure, and temperature and humidity sensors in communication with an ambient atmosphere outside the case, a data processor operatively connected to the sensors, data storage, an information display viewable through the case, and a calibration unit for calibrating the gas sensor to a predetermined gas concentration measured by the gas sensor.

A hive monitoring system that determines any change in chemicals (pesticide, antibiotics, bee medicines) in the hive, measures environmental and informs the control authorities so as to provide a fully monitored and controlled production from hive to spoon. There is a chemical substance sensor in the system that measures odors at levels that cannot be detected by the human nose, and records the chemical substance data with a time stamp. The measurement data is compared by a chip with the harmful bee pesticides and limit values that should be in the hives, and information is sent to the processor unit if the limit values obtained as a result of machine learning are exceeded. The users can receive the warning/informative notifications instantly via access devices over a server that receives and stores the data sent from the processor unit and can follow the conditions of the hive when desired.

A technique for monitoring and collecting environmental data is provided that supports acquisition and analysis of quality measurements of pollutants by sensors based on different technologies in an integrated manner. The system includes a primary substrate having a plurality of sensor modules, each sensor module configured to couple to a sensor, and a manifold having a plurality of flow hoods, each flow hood disposed on a top surface of a sensor and connected to another flow hood or component in the manifold. In some cases, the sensor modules are gas sensor modules, and the sensor is a gas sensor. The manifold thus provides a closed system through which a fluid sample can flow across a series of gas sensors in an actively controlled manner that enables independent flow control over each individual gas sensor while limiting exposure of the fluid sample to potential sources of contamination.

A MEMS gas sensor includes a photoacoustic sensor including a thermal emitter and an acoustic transducer, the thermal emitter and the acoustic transducer being inside a mutual measurement cavity. The thermal emitter includes a semiconductor substrate and a heating structure supported by the semiconductor substrate. The heating structure includes a heating element. The MEMS gas sensor further includes a chemical sensor thermally coupled to the heating element, and the chemical sensor including a gas adsorbing layer.

The technology relates to transportable gas detector and associated methods. The transportable gas detector comprises a gas sensor housed within a chamber and configured to detect gas in the environment surrounding the chamber. To test the gas sensor, test gas is pumped from a gas source directly into the chamber from the one or more inlets.