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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
| Items | Parameters |
| Pore Size Range | 0.013 - 500 microns |
| Permeability Range | 1 x 10^-10 - 1 x 10^-6 |
| Sample Size | 0.5” - 2.5” diameter |
| Pressurizing Gas | Clean, dry, compressed air or nonflammable, non-corrosive gas |
| Pressure Range | 0 - 500 PSI |
| Pressure Transducer Range | 0 - 500 PSI |
| Resolution | 1 in 60,000 |
| Accuracy | 0.15% of reading |
| Mass Flow Transducer Range | 10 cc/minute - 500 L/minute |
| Power Requirements | 110/120 VAC, 50/60 Hz (Others available) |
| Dimensions | 30” H x 19” W x 18.5” D |
| Weight | 100 lbs |
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