Abstract: A sensor discriminator for detecting a gaseous substance includes a power source, a discrimination module, a sensor simulator that simulates a metal organic framework under at least one simulation condition, a simulation circuitry electrically coupling the sensor simulator to the power source and the discrimination module, and a discriminator circuitry that electrically couples the power source and the discrimination module to a gas capture probe. The discrimination module compares a discrimination pulse and a simulation pulse from the power source after the discrimination pulse passes through a metal organic framework of the gas capture sensor and the simulation pulse passes through a simulation component of the sensor simulator. The discrimination module causes a discriminator output that includes the comparison of the discrimination pulse to the simulation pulse.

Abstract: A mail hazard screening machine is configured to compress mail pieces or envelops through compression rollers and draw out this air and any hazard that may have been contained in the envelope. The system may be able to detect a wide range of hazards such as chemical, biological, radioactive, nuclear, explosive and drugs, abbreviated CBRNE+D. The sample air, the air drawn out from the hazard screening system, may be directed to one or more analysis devices and the mail processing machine may be stopped if any hazard is detected. The mail piece containing the hazard can then be found and further inspected safely. A mail feeder system may be configured to deliver mail pieces to the hazard screening system without compression of the mail pieces or envelopes.

Abstract: The present invention belongs to the technical field of environmental monitoring, in particular to an environmental monitoring device for air pollution, comprising a monitoring frame, a monitoring shell arranged on a top end of the monitoring frame and an environmental monitor fixedly installed inside the monitoring shell through a connecting plate. An air sampling assembly is installed inside the environmental monitor; the air sampling assembly comprises air intake covers, and an electric push rod, a rack I, a gear I, a spur gear, an internal gear, a rotating disk, limiting blocks, limiting rods, a cross limiting track, an L-shaped frame and a strip-shaped plate which are used for driving the air intake covers. A cleaning assembly is installed on the air sampling assembly.

Abstract: A monitoring device for mangrove soil restoration includes a body, each of four corners of a lower surface of the body is provided with a locking universal wheel, a central position of the body is provided with a piling hole passing through the body, an upper surface of the body is connected to a frame, two inner surfaces of the frame are provided with sliding grooves, the sliding grooves are movably connected to a pile device, a lower surface of the pile device is provided with a round tube, the round tube is disposed above the pilling hole, two sides of the frame are provided with two fixing holes respectively, the two fixing holes are provided a stop rod therethrough. The monitoring device avoids that soil sampling is generally conducted after deep excavation with shovel manually, which saves manpower and the surrounding soil will not affect sampling results.

Abstract: There is provided a load detection device for use in a warehouse. The load detection device includes one or more load modules (100) configured to support a load (200) and obtain a data of the load (200). Each of the one or more load modules (100) includes an electronic load cell (101) for converting weight or force applied on the electronic load cell (101) by the load (200) into an electrical signal to provide raw weight data of the load, a mounting base (102) coupled to the electronic load cell (101) for supporting the electronic load cell (101) to be placed against a ground, and a platform (103) coupled to an upper part of the electronic load cell (101) to increase an area of contact with the load (101).

Abstract: A shaft wall pressure corrosion test system includes a pressure bearing device, a confining pressure application device, and a seepage pressure application device. The confining pressure application device and the seepage pressure application device provide confining pressure and seepage pressure for the pressure bearing device, respectively, and keep the confining pressure and the seepage pressure constant on the pressure bearing device. In the system, axial pressure is applied to a piston by means of a hydraulic jack and is then transferred to a sample to complete axial pressure application. The confining pressure is applied to hydraulic oil by a manual pump in combination with an energy accumulator and then transferred to the sample to complete confining pressure application. The seepage pressure is applied to a corrosion solution by a water pump group in combination with an energy accumulator and then transferred to the sample to complete seepage pressure application.

Abstract: Embodiments are described of a sensing network including one or more sensor nodes, wherein each of the one or more sensor nodes includes a gas sensor that can measure the presence, concentration, or both, of one or more airborne pollutants in a nodal coverage area surrounding the sensor node. A sensor base that can measure the presence, concentration, or both, of one or more airborne pollutants is positioned in the nodal coverage area of each of the one or more sensor nodes, wherein the sensor base includes a gas sensor with higher accuracy, higher sensitivity, or both, than the gas sensors of the one or more sensor nodes. One or more servers communicatively coupled to the sensor base and the one or more sensors nodes. The sensor base and the sensor nodes can communicate their measurements to the server and the measurements of the sensor base are used by the server as a reference to correct the measurements of the one or more sensor nodes.

Abstract: A method for displaying gas concentration values on a graphical display of a leak detector comprises detecting a presence of a gas using a gas sensor. A signal is generated by the gas sensor and transmitted from the gas sensor to a processor. The received signal is processed to determine a gas concentration value and a corresponding time stamp. The gas concentration values and corresponding time stamps are displayed graphically as they are determined and newly determined gas concentration values and corresponding time stamps are displayed in relation to previously determined gas concentration values and time stamps in streaming manner.

Abstract: A device for warning about the absence of belaying of a climber includes an enclosure intended to be fastened to a harness. A pressure sensor is designed to measure a barometric pressure. A detector, intended to be fastened to a link, is configured to detect a movement of the link within a range of positive inclines with respect to a horizontal reference plane. The detector is also configured to output a detection signal comprising a first state, indicating that the link is within the range of positive inclines, and a second state, indicating that the link is outside the range of positive inclines. A microprocessor is configured to compute a variation in the barometric pressure measured by the pressure sensor, and send a warning signal as soon as the variation in the barometric pressure exceeds a predetermined threshold and the detection signal is in the second state.

Abstract: The disclosure describes embodiments of an apparatus including a first gas chromatograph including a fluid inlet, a fluid outlet, and a first temperature control. A controller is coupled to the first temperature control and includes logic to apply a first temperature profile to the first temperature control to heat, cool, or both heat and cool the first gas chromatograph. Other embodiments are disclosed and claimed.

Abstract: A fluid sampling device including an inlet configured to receive a portion of a non-homogeneous fluid flowing through a conduit, a first double block bleed valve coupled to the inlet, a first flexible hose coupled to the first double block bleed valve by a first quick acting and leakage free coupling, a collection drum coupled to the first flexible hose by a first control valve, and a container coupled to the connection drum by a manual valve, wherein the device is configured to collect a fluid sample in the container. The device also includes a pressure controller to control pressure within the collection drum, and a level indicator to indicate a level of fluid in the collection drum.

Abstract: An air quality notification system to perform operations that include: causing a sensor device to sample an air quality associated with a location at a predefined sampling interval; determining, at the sensor device, that a value corresponding with the air quality sampled by the sensor device transgresses a threshold value; causing the sensor device to transmit an alert to a server system responsive to the determining that the value corresponding with the air quality transgresses a threshold value; and causing the server system to present a notification at a client device responsive to the sensor device transmitting the alert, the notification including at least a display of an identifier associated with the location.

Abstract: A gas densimeter for monitoring a pressure or density of a gas in a gas chamber with a housing having a first housing chamber and a measuring chamber, a first coupling, via which the measuring chamber can be connected to the gas chamber, at least one reference bellows, which is connected directly or indirectly in particular to a transmission element, and at least one transmitting and/or monitoring unit, which is or can be operatively connected directly or indirectly to the transmission element. In this regard, the measuring chamber has a gas-permeable connection to the gas chamber via the first coupling and the reference bellows forms a reference chamber filled with a constant amount of a reference gas. A surface section covering the reference chamber is provided or reachable at least partially within the first housing chamber or measuring chamber as a measuring surface for the gas from the gas chamber.

Abstract: A breath alcohol device calibration system includes a computerized calibration module operable to calibrate a candidate breath alcohol device using a reference gas of known alcohol concentration, and a reference gas tank identification module operable to identify a reference gas tank that is coupled to the breath alcohol device calibration system. Identification is performed using at least one distinguishing characteristic of the coupled tank, the distinguishing characteristic providing reference gas tank information including at least the known alcohol concentration of gas in the reference gas tank. The reference gas tank identification module is further operable to read a temperature history of the tank from an electronic device coupled to the tank, and to indicate an error condition if the temperature history of the tank indicates temperatures below a first temperature threshold over the tank's recent temperature history to potentially result in incomplete mixing of the reference gas.

Abstract: A method for traceability calibration of calibration device of rock chiseling specific power tester includes static calibration and dynamic calibration. Static calibration includes: placing impact indicator sensor of calibration device on static calibration stage; installing standard weight holder on adapter head of impact indicator sensor; adding a standard weight to standard weight holder several times; and calculating static coefficient k. Dynamic calibration includes: placing impact indicator sensor on dynamic calibration stage; resetting dynamic calibration coefficients a and b of calibration device; recording standard impact energy W0 of dynamic standard hammer and measured indication value W of impact indicator sensor to obtain standard deviation S=W?W0; and calculating dynamic coefficients a and b. Rock chiseling specific power magnitude is effectively traced to equal mass standard of standard weights. A new traceability method and system for specific power magnitude is constructed.

Abstract: An apparatus for protecting a sensor device includes a cover mounted on the sensor device, the cover including a cover portion made from a transparent material that is transparent to sensor signals, the cover portion including an external surface having a wettability that varies according to a wettability gradient in a selected direction along the surface.

Abstract: An apparatus for applying pressure to a pipe and measuring internal pressure. The apparatus including jacket disposed on the pipe, one or more of a first set of strain gauges disposed on a wall of the pipe, one or more of a second set of strain gauges disposed on the wall of the pipe, and a temperature sensor disposed on the wall of the pipe. The pipe has an inner diameter, an outer diameter, and a length.

Abstract: A device (10) for monitoring strain of an elongate member (12) is deployed underwater. The device (10) comprises a first clamp (14) configured to embrace and couple to the elongate member (12) at a first axial location, a second clamp (16) configured to embrace and couple to the elongate member at a second axial location separated from the first axial location, and a sensor which is responsive to an angle between the first clamp and the second clamp.

Abstract: A calibrated aerosol source (“CAS”) and related methods for parameterizing, testing, troubleshooting and/or calibrating an instrument (e.g., photometers) or a system. Preferably, the CAS allows for generation of multiple concentrations while maintaining constant particle size distribution (PSD) for all aerosol concentrations, so that the aerosol response at other points in a particular range can be verified and linearity that was previously assumed can be proved.

Abstract: A gas monitor configured to monitor at least one target gas in an environmental mixture, by separating and concentrating the target gas and then adjusting for the concentration factor. The adjustment may also take into account sensor sensitivities to other gases. Methods for adjustment of target gas results are described.