Abstract: An odor is detected with high accuracy. A sensing system includes: a sensor apparatus including a filter to remove an odor-causing substance contained in air and a sensor unit including one or more detection elements to detect an amount of the odor-causing substance contained in air; and an information processing apparatus including a difference calculation unit to calculate a difference between a detection value of each of the one or more detection elements, the detection value indicating an amount of the odor-causing substance contained in air that has passed through the filter and a detection value of each of the one or more detection elements, the detection value indicating an amount of the odor-causing substance contained in air that has not passed through the filter, and a determination unit to determine an odor of air based on the calculated difference.

Abstract: Methods and apparatus for detecting a vacuum leak within a processing chamber are described herein. More specifically, the methods and apparatus relate to the utilization of a spectral measurement device, such as a spectral gauge, to determine the leak rate within a process chamber while the process chamber is held at a leak test pressure. The spectral measurement device determines the rate of increase of one or more gases within the processing chamber and can be used to determine if the processing chamber passes or fails the leak test.

Abstract: The invention relates to a device for detecting the quality of a liquid in a supply pipe, in particular for detecting the water quality in a water pipe, comprising a flow cell, which has an inlet opening, an outlet opening and at least one receiving device for the arrangement of at least one sensor. The inlet opening and the outlet opening are provided on a base surface of the flow cell intended for connection to the supply pipe, the inlet opening of the flow cell is connected to an intake pipe, the free end of which is intended for arrangement in the supply pipe, said intake pipe being received displaceably in its longitudinal direction in the flow cell or having an adjustable length, and a liquid pump of a flow of the liquid in the supply pipe is connected to the intake pipe.

Abstract: The present invention relates to a quantitative evaluation method for concrete workability based on bottom resistance, including the following steps: step 1, carrying out a test for bottom resistance of fresh concrete; step 2, drawing a curve of inserting velocity of steel sheet over time; and step 3, quantitatively evaluating a concrete workability based on conditions of the bottom resistance. This method can quantitatively characterize the sinking condition of aggregate of the fresh concrete by effectively carrying out the test for bottom resistance of fresh concrete, calculating the inserting velocity of concrete and drawing the curves of displacement and velocity over time, so as to achieve the quantitative evaluation for concrete workability and overcome the defects of conventional methods that it is difficult to quantitatively characterize the segregation degree of concrete.

Abstract: The present invention relates to a device for measuring rheological properties of a high-viscosity material and a measurement method thereof in which, while a discharger of the present invention is completely blocked, a change in pressure of the high-viscosity material due to a change in the number of rotations of a first screw is measured, thus having an advantage of being able to precisely and reproducibly measure the viscosity.

Abstract: An apparatus for automatic leak detection includes a fixture having a primary seal and a secondary seal. The fixture connects to a workpiece to enclose a test volume defined in the workpiece. The seals are to interface with the workpiece to at least partially enclose a buffer volume. An enclosure is to connect to the fixture to enclose a test portion of the workpiece to form a test chamber. The secondary seal separates the buffer volume from the test chamber. The test volume and the test chamber have a tracer gas pressure differential between them. A port in fluid communication with the buffer volume removes fixture leakage from the buffer volume. A detector detects the tracer gas in the test volume or the test chamber where the tracer gas pressure differential between the test volume and the test chamber urges workpiece leakage of the tracer gas to accumulate.

Abstract: A gas constituent measuring apparatus includes a cell that draws in a first gas to be measured, gas sensors that respond to one or more types of constituent gases in the cell, a regulator that controls humidity in the cell, a pump, a humidity sensor that detects the humidity in the cell, and an integrated circuit. The integrated circuit controls the regulator and pump on the basis of a detection result of the humidity sensor so that the humidity is within a predetermined range before the first gas is drawn into the cell or after the first gas is discharged from the cell, acquires first response values from the gas sensors with humidity being controlled, acquires second response values from the gas sensors with the first gas being in the cell, and determines concentrations of the one or more types of constituent gases from the first and second response values.

Abstract: An electronic device includes a housing configured to form at least a portion of an outer surface of the electronic device; a battery disposed inside the housing; a circuit board disposed inside the housing; a gas sensor module including at least one gas sensor and mounted in the circuit board; and at least one wall disposed adjacent to the gas sensor module, wherein in the at least one wall, a first opening configured to introduce a gas leaked from the battery and a second opening configured to introduce air outside the electronic device are formed.

Abstract: A universal safety guard is provided. The guard may comprise a housing comprising an adapter coupling end, a dual mode chamber, a calibration gas port, and an ambient air end. The guard may also comprise an assembly configurable in a sensing position, in which ambient air may be admitted into the chamber, and a calibration position, in which calibration gas may be admitted into the chamber and the ambient air is blocked from reaching the chamber. The guard may comprise a detector adapter comprising a calibration housing fitting at one end and a gas detector fitting at an opposite end. The calibration housing fitting may comprise a static circumferential sealing interface that hermetically engages the adapter coupling end. The gas detector fitting may comprise a dynamic inner circumferential sealing interface for hermetic engagement with a gas detector comprising an outer sealing interface that complements the dynamic inner circumferential sealing interface.

Abstract: A gel-time detection apparatus includes a carrier, a stirring device, and an image-capturing device. The gel-time detection apparatus uses the carrier to liquefied powder to be detected, uses the stirring device to stir the liquefied powder and sense the torque of stirring the liquefied powder, and uses the image-capturing device to capture images of the liquefied powder, so as to determine a gel time according to a determination criterion relevant to the torque and the images. A gel-time detection method includes liquefying powder to be detected, stirring the powder, sensing the torque of stirring the liquefied powder, capturing images of the liquefied powder, and then determining a gel time according to a determination criterion relevant to the torque and the images. The determination criterion may include a torque predetermined threshold and an area-shrinkage-rate predetermined threshold.

Abstract: A gas sensing tube includes an outer surface, and an inner surface defining a passage. A sensor node is arranged along the sensing tube. The sensor node includes an inlet fluidically connected to the passage, an outlet fluidically connected to the passage, and an interior chamber arranged between the inlet and the outlet. A sensor cable extends along the sensing tube. The sensor cable includes a first conduit having a first connector coupled to the sensor node at the inlet and a second conduit having a second connector connected to the sensor node at the outlet. The sensor cable has a first conductor extending through the first conduit and being coupled to the first connector and a second conductor extending through the second conduit and being coupled to the second connector.

Abstract: A sensor enclosure comprises a cover and a structure. The structure can be encased by the cover. The structure comprises a frame, a ring, and one or more anchoring posts. The frame can be configured to mount one or more sensors. The ring, disposed peripherally to the frame, can be operatively coupled to the cover. The ring can include a drainage ring plate that drains rainwater accumulated on the cover away from the sensor enclosure. The one or more anchoring posts, disposed underneath the frame and the ring, can be used to anchor the sensor enclosure to a vehicle.

Abstract: Products and processes are provided herewith for analyzing octane content in a fuel sample that include the step or steps of receiving an octane measurement of a fuel sample from a octane analyzer, rounding the octane measurement to a nearest recognized octane rating, comparing the rounded octane measurement with a listed octane rating for the fuel sample, and communicating results of the comparison to a user of the octane analyzer. The octane analyzer may be incorporated into a fuel pump or a vehicle. The results of the comparison may also be used to adjust the vehicle operating parameters to account for the actual octane rating of the fuel dispensed into the vehicle.

Abstract: A gas sensor has a light detector, a gas-tight support structure enclosing the light detector, a window positioned in said support structure, and a light source mounted to the support structure. A sample area is positioned in the support structure to receive a gas to be tested. The light source is aligned with the window, sample area, and the light detector to pass light from the light source through the gas in the sample area to the light detector. The sensor can be provided in a breadth sampling apparatus that has deflects gas to a bypass route so that only a portion of gas reaches the sensor.

Abstract: The present invention provides a method and apparatus for wastewater sampling in all climates. The wastewater sampling apparatus pulls a sample from a stream or other body of water based on flow or time maintaining a consistent, repeatable, and accurate sample size. The present invention includes an all-weather housing. An integrated touchscreen control provides the ability to specify the volumes of water and program times and/or flow intervals to collect samples. Controls also allow control of the temperature within the sample compartment, both from the unit directly or from an external device. The present invention includes arcuate sample chamber and pivoting sample tube for accurate wastewater volume samples. The present invention may pull samples with vertical lifts of up to 29 feet or more and provide consistent accurate sampling exceeding current EPA transport velocity.

Abstract: Embodiments of the present application disclose an apparatus for detecting air tightness. The apparatus has an air inlet end, an inflating end for an object to be tested inflating end and a standard part inflating end. The apparatus includes a pressure regulating component, a first bypass isolating valve, a second bypass isolating valve, a third bypass isolating valve, a first high air pressure sensor, a second high air pressure sensor, a low air pressure sensor, and a differential pressure sensor. By adopting the technical solutions according to the embodiments of the present application, a low air pressure sensor can be embedded in an air tightness detector suitable for tests under high pressure and the low air pressure sensor can be effectively protected in a high pressure environment, so that leakage tests under different inflation pressures can be implemented by one instrument.

Abstract: A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

Abstract: A portable sensor calibration target includes a frame assembly, a first panel, and a second panel. The frame assembly may include three legs and a plurality of frame edges that is configured to form a first frame and a second frame and is configured to be held at a pre-selected height above ground by the legs. The first panel is removably attached to the first frame in an unfolded position, and includes a plurality of boards and a plurality of hinges connecting the plurality of boards. The first panel is configured to fold at the plurality of hinges into a folded position. The second panel is removably attached to the second frame adjacent to the first frame. The first panel and the second panel meet to form an edge, which is detectable by a detection system of a vehicle for calibrating the detection system.

Abstract: A method for determining the oxygen surface exchange property of a material in a solid oxide fuel cell. The method begins by first receiving a data stream comprising of continuous weight measurements of the material and time measurements of when the continuous weight measurements of the material are taken. While receiving the data stream an oxygen concentration test is performed which involves: flowing a degradation gas flow onto the cathode material while simultaneously increasing the temperature of the primary gas flow to a set temperature, flowing the degradation gas flow onto the material at the set temperature, stopping the degradation gas flow and starting a primary gas flow at the set temperature, flowing the primary gas flow onto the material at the set temperature, and stopping the primary gas flow and starting a secondary gas flow at the set temperature. This data stream is then displayed analyzing the weight change of the material over time.

Abstract: An apparatus for testing the airtightness of a separator for a fuel cell includes: a jig unit being in close contact with a surface of the separator on which an airtightness line is formed, and having a test flow field formed thereon, the test flow field being opened to a location contacting the airtightness line of the separator; and a test solution supply means for supplying a test solution to a contact location at which the airtightness line of the separator and the jig unit contact to each other through the test flow field of the jig unit, such that a leakage of the test solution at the contact location is tested.