A measuring method includes: placing resist 20 on a surface of a test film; pressing a template 30 against the resist 20 placed on the surface of the test film; measuring a size of a void formed in the resist 20 after pressing the template 30 against the resist 20; and determining gas permeability of the test film based on the size of the void.

The system includes a gas tank. A reference volume is fluidly coupled to the gas tank. A coreholder fluidly is coupled to the reference volume. A sample is disposed in the coreholder. A fluid pump is fluidly coupled to the coreholder. A first pressure transducer is fluidly coupled between the fluid pump and the coreholder. The first pressure transducer measures a confining pressure. A second pressure transducer is fluidly coupled to the coreholder. The second pressure transducer measures upstream pressure within the coreholder.

A method for testing the hydrogen permeability of a test object 1 includes the steps of provision of a sensor device 110 on a first side 3 of the test object 1, application of a test gas 5 including hydrogen 2 to a second side 4 of the test object 1, and detection of permeating hydrogen 2 passing through the test object 1 from the second side 4 to the first side 3 with the sensor device 110, wherein the sensor device 110 includes at least one hydrogen absorbing sensor layer 111 and the detection of the permeating hydrogen 2 including a detection of a change of state of the at least one sensor layer 111. A measuring apparatus 100 for testing the hydrogen permeability of a test object 1 is also described.

The present invention relates to a method for measuring metal ion permeability of a polymer film, comprising the steps of applying a voltage to the polymer film, while at least one side of the polymer film is brought into contact with an electrolyte comprising metal ions, an organic solvent and an aqueous solvent; and measuring the change rate of resistance or change rate of current of the polymer film according to time, after the voltage is applied, and a device for measuring metal ion permeability of a polymer film used therefor.

A system and method for high-throughput, high-resolution gas sorption screening are provided. An example system includes a sample chamber with a hermetic seal and a heat exchanger system. The heat exchanger system includes a heat exchanger disposed in the sample chamber, a coolant circulator fluidically coupled to the heat exchanger, and a sample plate comprising sample wells in contact with the cooling fluid from the coolant circulator. The system also includes a gas delivery system. The gas delivery system includes a gas source and a flow regulator. A temperature measurement system is configured to sense the temperature of the sample wells.

A single stage high pressure mercury injection capillary pressure measurement apparatus includes a sample sub-assembly, a transducer sub-assembly a hydraulic intensifier, and a gas cylinder. The sample sub-assembly includes a casing having walls defining an interior volume, a penetrometer arranged in the casing, the penetrometer having walls defining a sample volume, an annular space defined between the walls of the casing and the walls of the penetrometer, and a common chamber fluidly connected to the annular space by a fluid line and to the sample volume of the penetrometer by a tubing. The transducer sub-assembly is fluidly connected to the sample sub-assembly via the common chamber and includes a plurality of high-pressure transducers a plurality of low-pressure transducers. The hydraulic intensifier is fluidly connected to the common chamber and is configured to apply a high pressure to the annular space.

A method for determining a rock property includes positioning a core sample in a core sample assembly that is enclosed in a pressurized container with a flow inlet, a flow outlet, and a pressurized fluid inlet fluidly coupled to a pressurized fluid reservoir that includes a pressurized fluid pump; sequentially performing at least three test operations on the core sample; at each of the at least three test operations, measuring an inlet pressure at the flow inlet, measuring an outlet pressure at the flow outlet, and measuring a confining pressure within the pressurized container; and determining a permeability of the core sample based at least in part on at least one of the measured inlet pressures, at least one of the measured outlet pressures, and at least one of the measured confining pressures.

Methods and systems for performing optical measurements of the porosity of geometric structures filled with a fill material by a capillary condensation process are presented herein. Measurements are performed while the structure under measurement is treated with a flow of purge gas that includes a controlled amount of vaporized fill material. A portion of the fill material condenses and fills openings in the structural features such as pores of a planar film, spaces between structural features, small volumes such as notches, trenches, slits, contact holes, etc. In one aspect, the desired degree of saturation of vaporized material in the gaseous flow is determined based on the maximum feature size to be filled. In another aspect, measurement data is collected when a structure is unfilled and when the structure is filled. The collected data is combined in a multi-target model based measurement to estimate values of porosity and critical dimensions.

A control unit (6) estimates an output value of a PM sensor (S2) located at a downstream side of a DPF used as a reference filter, and detects whether the estimated output value exceeds a predetermined value (S3). When the estimated output value exceeds the predetermined value (YES in S3), the control unit detects an output value of the PM sensor (S4), and a heater heats the PM sensor (S5). The control unit detects an output value of the PM sensor (S6) after the PM sensor is heated, and calculates a change ratio of the output values of the PM sensor before and after heating (S7). The control unit estimates an average particle size of PM based on the calculated change ratio (S8), and detects whether the DPF has failed based on a comparison result of a corrected output value of the PM sensor with a threshold value.

Turbidity measurement systems and methods of using the same are described. A turbidity measurement system comprise a vessel configured to hold a wellbore fluid, wherein a permeable obstruction to flow is positioned in the vessel; a light source positioned to direct light at the vessel; a light detector positioned to measure light intensity of light emitted by the light source and passing through the vessel; and a backscatter detector positioned to measure the light intensity of reflected light emitted from the light source.