Matches 1 - 50 out of 143 1 2 3 >


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US20110259330 SYSTEM AND METHOD FOR DETERMINING VENTILATOR LEAKAGE DURING STABLE PERIODS WITHIN A BREATH  
This disclosure describes systems and methods for compensating for leaks in a ventilation system based on data obtained during periods within a breath in which the patient is neither inhaling nor...
US20120259559 Instrumentation system for determining risk factors  
An instrumentation system (300) for monitoring one or more valves (20) of an assembly (110) includes one or more sensors (120) coupled to the one or more valves (20), and a data processing...
US20120239315 VALVE FAULT TEST SYSTEM  
A valve fault test system is disclosed. The system tests for leakage in a valve within a turbine system having a gas turbine and a steam turbine sharing a common shaft, by performing actions...
US20120265456 SYRINGE-BASED LEAK DETECTION SYSTEM  
Generally described herein are devices, methods and systems related to detecting a leak present in a gastric banding system for the treatment of obesity. For example, a leak detector may include a...
US20110196251 LEAK DETERMINATION IN A BREATHING ASSISTANCE SYSTEM  
Systems and methods for estimating a leak flow in a breathing assistance system including a ventilation device connected to a patient are provided. Data of a flow waveform indicating the flow of...
US20080319688 Usage monitoring system of gas tank  
A usage monitoring system of a gas tank. A monitoring system for monitoring the usage of a tank includes: a sensor module for measuring one or more thermophysical quantities of a gas in the tank;...
US20130116942 LEAK ESTIMATION IN A GAS DELIVERY SYSTEM USING BLOCK LEAST-MEAN-SQUARES TECHNIQUE  
A method of estimating leak flow in a gas delivery system is provided that includes determining an average total flow Qtot (or summation or integral of total flow) of the gas delivery system for...
US20140288858 SYSTEM AND METHOD FOR DETECTING LEAKS  
A method includes receiving a result of a benchmark leak detection test for a pressure system and determining whether the result indicates that a leak is present in the pressure system. In...
US20130231876 Leakage Detection and Leakage Location In Supply Networks  
A method and device are provided for leakage detection and leakage location in an area of a supply network (e.g. water supply, gas supply or district heating network), wherein measurement values...
US20090099795 LEAK DETECTION METHOD AND ASSOCIATED VALVE AND FUEL SYSTEM  
Method of detecting a leak in a fuel system comprising a fuel tank and an orifice with a controlled section between the tank and the atmosphere, according to which a) the controlled section is set...
US20120078542 METHOD FOR ESTIMATING LEAKS FROM VENTILATOR CIRCUITS  
Gas leakage from a ventilator circuit and patient interface is estimated by a method that relies on breath-by-breath or time-to-time variability in the pattern of pressure delivery by the...
US20090210175 Ultrasonic Leak Test System and Method  
A leak detection system has a test frame for receiving a vehicle. An ultrasonic transmitter is placed within the vehicle under test. One or more robotic arms are disposed within the test frame and...
US20130013228 Airport jet fuel piping leak detection and location system through pressure and cathodic protection soil potential  
A fuel leakage detection system for an underground fuel piping system having fuel service pits installed at locations along the piping. Each pit has a pressure sensor and a reference electrode...
US20130154841 GAS VALVE WITH VALVE LEAKAGE TEST  
This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a valve leakage test may be performed on a valve assembly including a valve body with a...
US20100101574 DETERMINATION OF LEAK DURING CPAP TREATMENT  
In a CPAP or positive pressure ventilation system, leak is determined at each instant by a lookback for a time as long as single breath to establish the start of an averaging window over which...
US20140222353 METHOD FOR HELIUM MASS SPECTROMETRIC FINE-LEAK TEST BASED ON QUANTITATIVE DETERMINATION OF MAXIMUM TEST-WAITING TIME  
A method for helium mass spectrometric fine-leak test is based on quantitative determination of maximum test-waiting time, which gives a method for quantitative determination of the maximum...
US20110295527 METHOD FOR ESTIMATING THE LOCATION OF A LEAK IN A PIPELINE  
A method for estimating a location of a leak (x) in a pipe (1). A liquid of a known density is fed into the pipe at a first inlet pressure (P1). When the liquid achieves a substantially steady...
US20080012236 PACKING CASE SEAL  
An apparatus and method for monitoring the performance of a packing case seal, including a vent 24, 26 leading from the interior of the packing case and a gas meter 32 connectable to the vent 24,...
US20140039815 Fire Hose Testing Apparatus and Method  
A method for testing a plurality of fire hoses having respective service test pressures and the test apparatus therefor wherein each hose is required to maintain a test pressure for a specified...
US20130289899 REMOTE SENSING OF HYDROCARBON LEAKS  
A gas filter correlation radiometer mounted on an aircraft is flown over a target area. The gas filter correlation radiometer is configured to detect a gas in a vapour plume in the event of a...
US20110307195 Method for Determining the Size of a Leak  
Method for determining the size of a leak in the liquid-containing tank device of a vehicle, in particular of a motor vehicle, the liquid influencing the pressure in the tank device by...
US20140005958 MULTI-SPECTRAL ULTRASONIC GAS LEAK DETECTOR  
An ultrasonic gas leak detector is configured to discriminate the ultrasound generated by a pressurized gas leak into the atmosphere from false alarm ultrasound. An exemplary embodiment includes...
US20130213482 METHOD FOR ACOUSTICALLY LOCALIZING LEAKS IN PIPING SYSTEMS  
Method for acoustically locating leaks in underground or aboveground piping systems, in which at least two noise data loggers receiving the leak noise and being arranged in mutual distance from...
US20090299660 Method and System to Identify Utility Leaks  
A method for utility monitoring to ascertain unidentified utility consumption, having the steps of: a) providing a utility; b) passing the utility through a primary meter; c) supplying the utility...
US20110231111 TURBINE-GENERATOR HYDROGEN SEAL OIL SYSTEM DIAGNOSIS  
A hydrogen cooled generator having a system for diagnosing problems associated with a seal oil system. Included is a shaft having a turbine end and a collector end; a first shaft seal located...
US20090132185 Leak Inspection Method and Leak Inspector  
In a calibration mode, an equilibrium period after pressurized gas is sealed in a device under inspection and a reference tank is divided into two periods; pressure-difference changes ΔP1 and ΔP2...
US20120150455 System and Method for Determining Leaks in a Complex System  
A leak detection system includes a coupled to a pressure system to sense a first pressure at time t0. A fluid pumping system then provides a selected volume of test fluid to the pressure system....
US20080234950 WATER LEAKAGE-ACOUSTIC SENSING METHOD AND APPARATUS IN STEAM GENERATOR OF SODIUM-COOLED FAST REACTOR USING STANDARD DEVIATION BY OCTAVE BAND ANALYSIS  
A water leakage-acoustic sensing method in a steam generator of a sodium-cooled fast reactor, the method including: calculating a standard deviation and an average of an octave band by octave band...
US20100030496 LEAKAGE DETECTION AND FLUID LEVEL PROGNOSTICS FOR AIRCRAFT HYDRAULIC SYSTEMS  
A method for detecting and predicting total hydraulic fluid level for aircraft hydraulic systems includes determining an estimated value for a parameter indicative of total fluid level or mass....
US20110046902 Method for Detection of a Fluid Leak Related to a Piston Machine  
A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: —attaching a pressure sensor (18, 24) to at least a pressure side of the at least one...
US20130317765 METHODS AND DEVICES WITH LEAK DETECTION  
Automated methods provide leak detection that may be implemented in a respiratory treatment apparatus. In some embodiments, the detection apparatus may automatically determine and score different...
US20130226475 SYSTEM AND METHOD FOR DETECTING LEAKS  
A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time0, after which fluid...
US20110046903 System And Method For Detecting Leaks  
A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time0, after which fluid...
US20110282598 METHOD AND DEVICE FOR DETECTING LEAKS IN THE INTAKE TRACT OF AN INTERNAL COMBUSTION ENGINE  
A method for detecting a leak in an intake tract of an internal combustion engine including the following steps: operating the internal combustion engine at a first operating point having a...
US20150253216 LEAK INSPECTION DEVICE, LEAK INSPECTION METHOD, AND LEAK INSPECTION PROGRAM  
Each functional configuring unit of a leak inspection device (2000) operates in the manner that follows. A vibration acquisition unit (2020) acquires a signal indicating tubing vibrations or...
US20110156921 METHOD FOR DETECTION OF A FLUID LEAK RELATED TO A PISTON MACHINE  
A machine includes at least one piston and a pump shaft. A method for detecting a leak in the machine includes receiving a vibration signal from a vibration sensor disposed on at least one of an...
US20120007744 LEAK DETECTOR  
A leak detector for detecting and locating leaks in a water supply pipe of plastics, the leak detector comprising a first sensor at a first position arranged to detect a leak signal travelling...
US20120007743 SYSTEM METHOD AND DEVICE FOR LEAK DETECTION AND LOCALIZATION IN A PIPE NETWORK  
The invention provides a system for leak detection of a fluid in a pipe network. The system includes flow meters, and vibration detectors adapted to be attached to a pipe at a location in the pipe...
US20110181425 SERVER AND METHOD FOR DETECTING A PIPELINE  
A server and method detects a pipeline. The server reads pipeline data from a data collector and analyzes the pipeline data to determine if the pipeline works abnormally. An alert command is sent...
US20150241297 LEAKAGE DETERMINATION METHOD, LEAKAGE DETERMINATION SYSTEM, AND PROGRAM  
The present invention is a leakage determination method comprising: comparing a correlation profile including a cross-correlation function obtained from measurement data measured at at least a...
US20120185184 SYSTEM AND METHOD FOR IDENTIFYING LIKELY GEOGRAPHICAL LOCATIONS OF ANOMALIES IN A WATER UTILITY NETWORK  
A computerized method for determining one or more statistically likely geographical locations of an anomaly in a region or zone of a water utility network, the water utility network comprising at...
US20080262757 Leakage detection system  
In a leakage detection system configured by arranging a number of gas sensors, a leakage spot is promptly and accurately estimated. An output voltage of the each sensor is converted into...
US20120143531 FLUIDICS INTERFACE SYSTEMS AND METHODS  
A system including a communication interface to communicatively couple to a sensor cartridge, a fluidic subsystem to exchange a reagent solution with the sensor cartridge, and a computational...
US20090198457 ALGORITHM TO DIAGNOSE LEAKS OR BLOCKAGES DOWNSTREAM OF THE SECONDARY AIR INJECTION REACTION (SAIR) PRESSURE SENSOR  
A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI...
US20130325371 Leak Testing Methods and Systems  
Leak rate testing is an engineering challenge where on the one hand, engineers must meet strict leak rate standards on a wide range of products and systems from semiconductor packages through...
US20130325194 Methods and Systems for Leak Testing  
Leak rate testing is an engineering challenge where on the one hand, engineers must meet strict leak rate standards on a wide range of products and systems from semiconductor packages through...
US20090233760 Detecting Operation of a Vehicle on an Ascending Grade  
In a vehicle that includes an engine driveably connected to the vehicle wheels, an accelerator pedal, and an electric motor for transmitting power to at least some of the vehicle wheels, a method...
US20130073227 SYSTEM AND METHOD FOR TESTING FLUID SEALS FOR LEAKS  
A system and method for testing a fluid seal in a device can include pumping fluid to the device and a control device simultaneously, while measuring the pressure of the fluid pumping to both...
US20150106040 DIAGNOSING FAULT IN COMMON RAIL FUEL SYSTEM  
A method of diagnosing a fault in a common rail fuel system having a proportional-integral-derivative (PID) controller includes determining a first integral output corresponding to a first fuel...
US20130253856 METHOD AND APPARATUS FOR LEAK DETECTION IN HORIZONTAL CYLINDRICAL STORAGE TANKS  
A storage tank leak detection system for detecting and measuring very small leaks in large horizontal cylindrical storage tanks. Embodiments include two highly precise quartz crystal type pressure...

Matches 1 - 50 out of 143 1 2 3 >