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In-Plane Porometer

Description:The sample chamber of the In-Plane Porometer is such that gas is allowed to displace liquid in pores to move radially from the center to the periphery of a sheet shaped sample. Suitable sample configu

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In-Plane Porometer

Product Details

The sample chamber of the In-Plane Porometer is such that gas is allowed to displace liquid in pores to move radially from the center to the periphery of a sheet shaped sample. Suitable sample configurations give in-plane pore structures of multi-layered materials. The instrument measures:

● Pore diameter and distribution in the x-y plane, and in the x,y and z directions.

● Permeability in x-y plane and in the x, y and z directions.

● Pore size and distribution of layers of a composite.

Principles

A wetting liquid is allowed to spontaneously fill the pores in the sample and a non-reacting gas is allowed to displace liquid from the pores in the radial direction. The gas pressure and flow rates through wet and dry samples are measured and the pore structure characteristics are computed using the following equations:

p = 4 γ cos θ /D

The differential gas pressure, p,required to remove liquid from pores and cause gas flow is related to surface tension, γ, contact angle, θ, and pore diameter, D.

Features

◆ Allows testing of samples under compressive stress and elevated temperatures

◆ Determines gas permeability in x-y plane

◆ Nondestructive testing

◆ Wide range of acceptable sample sizes and types

Technical Parameters

ItemsParameters
Pore Size Range0.013 - 500 microns
Permeability Range1 x 10^-10 - 1 x 10^-6
Sample Size0.5” - 2.5” diameter
Pressurizing GasClean, dry, compressed air or nonflammable, non-corrosive gas
Pressure Range0 - 500 PSI
Pressure Transducer Range0 - 500 PSI
Resolution1 in 60,000
Accuracy0.15% of reading
Mass Flow Transducer Range10 cc/minute - 500 L/minute
Power Requirements110/120 VAC, 50/60 Hz (Others available)
Dimensions30” H x 19” W x 18.5” D
Weight100 lbs


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