Pomeroy Orienting Fixture
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Manufacturer: ASC Scientific
Country Of Origin: USA
This precision orienting fixture is used to measure the azimuth and dip of in-place cores drilled with 1 1/8" core drill bits (1" core ID). It features an anodized aluminum tube and orienting platform which is adjustable using a tripod-style clamping handle. A small cylindrical wedge is included, which can be fitted onto the tube and used to lock the orienter in place over the in-place core while measurements are being made. The platform is machined to accommodate a clear plastic sun compass (included) or, with sun compass removed, a Brunton pocket transit for magnetic azimuth measurements. (Orienter will acommodate Brunton Compro or Standard models.) Once the platform is leveled using a Brunton compass, sun and/or magnetic azimuths can be measured, and core dip angle can be measured using the fixture's vertically mounted protractor.
The orienter is offered with two different dip-angle conventions:
- OR-2: 0° when the core is vertical and 90° when the core is horizontal
- OR-3: Reverse of the above, 90° when the core is vertical and 0° when the core is horizontal