Description
Plane Table surveying accessories (Alidade, plumbing fork & Bob, Trough Compass, Spirit Level)
Specifications
| Specification | Details |
| Product Name | Plane Table surveying accessories |
| Components Included | Alidade, plumbing fork & Bob, Trough Compass, Spirit Level |
| Application | Plane table surveying, topographic mapping |
| Quality Standard | ISO 9001:2015 certified manufacturing |
| Material Quality | Premium grade metals and optical components |
| Complete Set Weight | Approximately 2-3 kg |
| Suitable For | Professional surveyors, civil engineers, students |
| Compatibility | Standard plane tables (all sizes) |
| Packaging | Protective carrying case (optional) |
1. ALIDADE Specifications
| Specification | Details |
| Type | Plain Alidade / Telescopic Alidade |
| Length | 300mm – 500mm (12″ – 20″) |
| Material | Brass/Aluminum with hard anodized finish |
| Sight Vanes | Adjustable front and rear vanes |
| Front Sight | Vertical slit with graduated scale |
| Rear Sight | Peep hole or crosswire |
| Base | Flat beveled edge for drawing |
| Ruling Edge | Precision graduated edge (metric/imperial) |
| Fiducial Edge | Beveled for accurate line drawing |
| Graduations | 0-180° or 0-360° (if telescopic) |
| Accuracy | ±5′ to ±10′ (arc minutes) |
| Telescope (if applicable) | 15x – 20x magnification |
| Objective Lens | 30mm – 40mm diameter |
| Level Vial | Tubular bubble level attached |
| Finish | Corrosion-resistant coating |
2. PLUMBING FORK & BOB Specifications
| Specification | Details |
| Fork Material | Brass or stainless steel |
| Fork Length | 150mm – 200mm |
| Fork Design | U-shaped with adjustable arm |
| Bob Material | Brass or steel (pointed tip) |
| Bob Weight | 200g – 500g (heavy enough to stabilize) |
| String/Wire Material | Nylon cord or fine steel wire |
| String Length | Adjustable, 300mm – 600mm |
| Bob Shape | Conical with sharp point |
| Mounting | Clamps to plane table edge |
| Adjustment | Vertical and horizontal adjustment |
| Purpose | Centering plane table over ground station |
| Accuracy | ±2mm centering precision |
| Finish | Polished/anodized for durability |
3. TROUGH COMPASS Specifications
| Specification | Details |
| Type | Trough compass (tubular design) |
| Length | 150mm – 200mm |
| Material | Brass body with glass top |
| Compass Needle | Magnetic steel, balanced |
| Needle Length | 80mm – 100mm |
| Graduation | 0-360° (full circle) |
| Division | 1° or 2° graduations |
| Reading System | Direct reading through glass cover |
| Mounting | Fits into plane table groove |
| Magnetic Declination | Adjustable for local variation |
| Damping | Oil-filled for quick settling |
| Accuracy | ±0.5° to ±1° |
| Glass Cover | Protective transparent cover |
| Base Design | Flat bottom for stable placement |
| Finish | Lacquered brass with clear markings |
4. SPIRIT LEVEL Specifications
| Specification | Details |
| Type | Circular bubble level / Tubular level |
| Size | 50mm – 100mm diameter (circular) |
| Material | Brass or aluminum body |
| Bubble Vial | High-quality glass vial |
| Sensitivity | 10′ to 20′ per 2mm division |
| Accuracy | ±0.5mm per meter |
| Mounting | Screw-on or clamp attachment |
| Base Design | Flat precision-machined base |
| Vial Type | Alcohol or spirit-filled |
| Protection | Metal or plastic protective cage |
| Adjustment | Fine adjustment screws (3-point) |
| Visibility | Clear markings and bubble chamber |
| Durability | Shock-resistant construction |
| Application | Leveling plane table horizontally |
ADVANCE SCIENCE & TECHNOLOGY ZONE
E-mail: astzbd@gmail.com, Website: WWW.ASTZBD.COM
Cell: +88 01329100999
+88 01329100998
Reviews
There are no reviews yet.