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Cyclic Compression Porometer

Description:The instrument applies cyclic stress on a sample and measures the pore structure characteristics after a desired number of cycles. The stress cycles and testing after any desired number of cycles are

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Cyclic Compression Porometer

Product Details

The instrument applies cyclic stress on a sample and measures the pore structure characteristics after a desired number of cycles. The stress cycles and testing after any desired number of cycles are automatically continued.

Operation Principle

The instrument applies cyclic stress on a sample and measures the pore structure characteristics after a desired number of cycles. The sample is loaded in the sample chamber and is subjected to stress cycles in the specified stress limits. At the end of the desired number of stress cycles, the pressure of a non-reacting gas on one side of the sample is increased to initiate gas flow through pores. The gas pressure and flow rates are measured. The pores in the sample are spontaneously filled by a wetting liquid. The gas pressure and flow rates are measured through the wet sample. After acquisition of data, the sample is re-wetted and again subjected to cyclic compression. Pressure and flow rates are measured after the desired number of cycles. The test is continued to acquire data as a function of number of stress cycle.

Application

The Cyclic Compression Porometer is used to test the sample and measure the maximum pore diameter, mean flow pore diameter and pore distribution. Theses data represents the actual characteristics of pore structure.

Applied industries:

Automobile manufacturing

Fuel battery pack

Paper

Battery separator

Geofabrics

Filtration

Nonwoven

Wool felt

Features

acquires data, continues to cyclically stress the sample

Very little operator involvement

Operator adjustable: stress limits in a cycle; number of cycles after which data is to be acquired ; stress free duration for data acquisition ; total number of cycles.

Concurrent measurement of compressive stress in the sample as a function of stress cycle.

Technical Parameters

ItemsParameters
Pore Size Range0.013 - 500 microns
Permeability Range1 x 10-3 - 50 darcies
Sample size1.75” - 2.5” diameter
Pressure range0~500psi
Pressurizing gasClean, dry, and compressed air or nonflammable and noncorrosive gas
Pressure transducer range0~500psi
Resolution1 in 60,000
Accuracy0.15% of reading
Mass flow controller range10cc/minute~100cc/minute
Power supply110/220VAC,50/60Hz (Others Available)
DimensionD30” H x 19” W x 18.5” D
Weight100lbs


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