Abstract: The disclosure discloses a wide-concentration multi-component hazardous gas detector and an implementation method thereof, solving the problems of the existing technology that false negative results, ultra-limit concentration and sensor poisoning often occur in a gas detector used in fire fighting forces. The wide-concentration multi-component hazardous gas detector includes a gas diluting and sampling connector, a sensor integrated module, electrochemical sensors, ADC (analog to digital converter) circuits, MCU (microprogrammed control unit) single chip microcomputers, acousto-optic alarms, a 4-button keyboard module, an LED (light-emitting diode) display module, an SD card data memory module, a power supply control and electric quantity display module, a high-performance lithium battery pack, a small evacuation pump, 433M signal transmission modules and a remote command platform signal collection terminal.

Abstract: A leak detection device operable to measure fluid leaks in an element to be tested that is positioned in a first enclosure. In one example, a measuring module is positioned in a second enclosure and connected to the first enclosure and the element to be tested by an aeraulic connection. At least one of the first enclosure and the measuring module are thermally insulated using an insulating material.

Abstract: The method of the present disclosure for signaling a standard frequency of a density meter comprises: exciting bending vibrations of a measurement tube at an excitation mode working frequency, the working frequency depending on the density of a medium conducted in the measurement tube and on a disturbance variable; determining a characteristic value of the working frequency; determining a value representing the disturbance variable; calculating a corrected density value of the medium as a function of the characteristic value of the working frequency and of the value representing the disturbance variable; calculating a characteristic value of the standard frequency as a function of the corrected density value, the standard frequency being the frequency which produces the corrected density value in a calculation of the density using a frequency-dependent standard function which is not dependent on the disturbance variable; and providing a signal representing the standard frequency.

Abstract: A method for in-line leak testing of blow moulded containers wherein a conveyor line is fed with a continuous stream of blow moulded containers from a blow moulding machine, at least one measuring head is temporarily connected to a first blow moulded container. The measuring head is moved in order to follow the movement of said first blow moulded container which is pressurized by a source of pressurized gas, the source of pressurized gas is disconnected, said at least one measuring head is used to measure the pressure decay therein. The pressure decay is compared with stored data for the pressure decay of acceptable containers and an accept or non-accept signal is generated which implies proceeding or disposal of said first blow moulded container. The measuring head is moved against the moving direction of the conveyor line to a subsequent blow moulded container, and the process is repeated.

Abstract: A plumbing system may include a first conduit that supplies a fluid to a destination device. The plumbing system may also include a second conduit concentric to the first conduit. The second conduit includes an indicator material that changes one or more properties of the fluid supplied to the destination device when the fluid contacts the indicator material via an opening present in the first conduit.

Abstract: Provided is a liquid sensor capable of relatively accurately detecting the liquid level even if vibration or the like occurs. The liquid sensor is configured to detect a liquid level in a state in which at least a portion of the liquid sensor is immersed in liquid. This liquid sensor includes a substrate. The substrate is provided with a hole. An inner circumferential surface of the substrate is formed around the hole. A first electrode and a second electrode facing the first electrode are formed on the inner circumferential surface. The liquid sensor further includes a detection circuit. The detection circuit is configured to detect capacitance between the first and second electrodes.

Abstract: A circuit assembly for mounting on a vehicle assembly is provided. The circuit assembly may be a mountable sensor assembly. The assembly may include a housing with a cavity that houses a circuit, for example a sensor circuit. The circuit may be sealed in the cavity of the housing by epoxy. The housing may include a connector recess with terminals extending into the connector recess. The terminals may provide an electrical connection to the circuit. The housing may have openings between the cavity and the connector recess through which the terminals extend. One or more of the openings may have a cross sectional profile larger than the cross sectional profile of the terminal such that a passage is formed between the cavity and the recess after the terminal is inserted through the opening.

Abstract: A densitometer in the present disclosure comprises a piston attached to an end of a tube of the densitometer to reduce pressure dependence of density estimates of a sample fluid. The densitometer measures sample fluid density by vibrating the tube containing sample fluid and measuring the resonant frequency of the tube, then estimating the sample fluid density based on this resonant frequency. The piston is designed with a predetermined diameter that converts pressure inside the tube to tension in the tube. This tension produces an opposite effect on the resonant frequency of the tube to that caused by the fluid pressure itself and thereby reduces pressure dependence of the sample fluid density estimates.

Abstract: A pressure sensor for an evaporated fuel leak detector includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case has a fluid flow path and a housing recess. Each remaining inner wall surface of the housing recess except for an inner wall surface on the conduction terminal side is provided with an inclined surface and a vertical surface, in a cross section along an axial direction perpendicular to a pressure receiving surface of the sensor unit. The inclined surface is inclined inward as toward a pressure receiving side. The vertical surface extends from the end of the inclined surface on the pressure receiving side to define a filling gap in which the sealing resin is filled between the side surface of the mold resin portion and the vertical surface.

Abstract: A sample injection device (100) includes a tubular suction and discharge unit (23) configured to suction a liquid sample (S), contain the sample therein, and discharge the suctioned sample, and at least a portion of an inner wall (23a) of the suction and discharge unit, the portion having the sample contained therewithin, is subjected to a surface treatment (V) to increase an interfacial tension (F) that acts between the inner wall and the sample.

Abstract: A printed circuit board device includes: a first capacitive sensor configured to measure a first capacitance within a contained volume having known dimensions, wherein the first capacitance changes as a substance is received into the contained volume; a second capacitive sensor having a plurality of trigger points at a plurality of corresponding known heights within the contained volume, the second capacitive sensor configured to detect when the substance received into the contained volume has reached each of the corresponding known heights within the contained volume; and wherein at least one of a level of the substance within the contained volume, a volume of the substance within the contained volume, or a flow rate of the substance into the contained volume is determined based on data from the first capacitive sensor and the second capacitive sensor.

Abstract: A leak inspection device includes an inspection mechanism that executes a first inspection process for compressing the insides of a first inspection chamber and a reference chamber, and inspecting the first inspection chamber for a pressure leak based on a differential pressure therebetween, and a second inspection process for compressing the insides of a second inspection chamber and the reference chamber, and inspecting the second inspection chamber for a pressure leak based on a differential pressure therebetween, a first pre-compression valve that opens and closes a first pre-compression path, and a control device that opens, during the execution of the first inspection process, the first pre-compression valve to pre-compress the second inspection chamber, and causes, in a state where the inside of the second inspection chamber is pre-compressed, the inspection mechanism to execute the second inspection process.

Abstract: A septum contains at least one internal chamber along the central axis of the septum. The chamber provides relief space into which the sealing sections of the septum can deform as a needle passes through the septum. Incorporation of the chamber reduces surface area contact and friction between the septum and needle, which results in reduced septum tearing and reduced production of particulate matter from abrasion.

Abstract: A method of providing electrical energy to a dewar containing a cryogenic liquid including introducing an insulated heat pipe, with a distal end and a proximal end, into a cryogenic dewar comprising an exterior surface. And providing a Seebeck module, with a cold junction and a hot junction. The distal end is in thermodynamic contact with a cryogenic fluid and the proximal is thermodynamically connected to the cold junction. The hot junction is thermodynamically connected to the exterior surface of the dewar, thereby producing an electrical flow in the Seebeck module. A level probe may be calibrated by taking a first capacitance reading with the dewar full, and a second capacitance reading when the cryogenic liquid level is within a calibration gap. The level probe is calibrated by utilizing the first capacitance reading and the second capacitance reading.

Abstract: A device (102, 300) for measuring and quantifying an emulsion and its contents mass when immersed in a fluid comprising two immiscible liquids is provided. The device (102, 300) includes at least one pressure sensor (302A-I) configured to measure hydrostatic pressure measurement data and a device processor (104) configured to, (i) convert the hydrostatic pressure measurement data into respective mass measurement data using a mass calculation formula, (ii) detect a condition of the fluid as emulsion, if the hydrostatic pressure measurement data is lesser than the hydrostatic pressure measurement data of a first liquid and greater than the hydrostatic pressure measurement data of a second liquid in the fluid, (iii) calculate the first and second liquid mass in the emulsion condition of the first and second liquid, and (iv) calculate a total mass of the first liquid and the second liquid in the chamber (310).

Abstract: A method for reducing sensor noise in an automobile vehicle NOx sensor offset diagnostic includes: connecting an exhaust system to an engine of an automobile vehicle; sensing a condition of the exhaust system using at least one NOx sensor; identifying when the at least one NOx sensor is at a low noise condition; and running a diagnostic to identify conditions of the at least one NOx sensor. The method further includes selecting one of the low noise condition as the engine in an after-run condition or as the engine in an engine idle condition.

Abstract: For simplified dismantling of manual metering devices (1), the manual metering device (1) proposed is one which comprises the component carrier (5). This component carrier (5) can be pushed into its use position in the housing (4) through the insertion opening (10) present in the housing (4). The releasable connection (11), which can be released in particular from the outside, is provided for the releasable fastening of the component carrier (5) in its use position within the housing (4).

Abstract: To measure water content of liquid hydrocarbon using dried liquid hydrocarbon solvent, a liquid hydrocarbon sample is received from a flowline carrying the liquid hydrocarbon. The liquid hydrocarbon sample includes liquid hydrocarbon and liquid water at a concentration greater than a water saturation level. The liquid hydrocarbon sample is split into a first portion and a remainder portion. The first portion is dried to remove liquid water in the first portion. The remainder portion is mixed with the dried first portion causing the concentration of liquid water in a mixture of the remainder portion and the dried first portion to be below the water saturation level. After mixing the remainder portion with the dried first portion, a water content in the liquid hydrocarbon sample is determined.

Abstract: A fluid handling assembly for selectively coupling and decoupling with a pipet tip can include a sampling arm, an arm cover, a probe carrier unit, a probe, and a biasing spring. The arm cover can be carried by the sampling arm. The probe carrier unit can be movably mounted within the arm cover, with the probe carrier unit including a probe release structure and a main probe carrier. The probe release structure and the main probe carrier can be interconnected. The probe can be carried by the main probe carrier and movable through a probe opening in the arm cover. The probe can be configured to releasably carry a pipet tip. The biasing spring can be carried within the arm cover and can contact the probe release structure. The biasing spring can bias the probe release structure to push the probe down toward the probe opening in the arm cover.

Abstract: Provided is a system and apparatus for preparing multiple samples for chemical analysis. The apparatus includes a housing having a heating compartment, a cooling compartment spaced apart from the heating compartment, and an insulating region located between the heating compartment. The apparatus has an infrared system including a least one infrared heating tube within the heating compartment for heating a sample within a crucible portion of a sample container while the sample container is received within the housing. The infrared heating tube includes an elongated tube positioned below the crucible portion. The apparatus includes a cooling mechanism for cooling the expansion portion of the sample container while the sample container is received within the housing.