Telescopic Alidade
Product Code : JA-SE-8843
The telescopic alidade (SKU JA-SE-8843) is a plane table sighting instrument that uses a telescope, similar to the upper part of a theodolite, instead of open sights. The telescope has a stadia diaphragm, so it can also work as a tacheometer to compute horizontal distances and elevations. The line of sight is aligned with the fiducial edge, and JaincoLab makes the alidade for plane table surveying practicals.
Specifications
The telescopic alidade has a sighting telescope with stadia diaphragm whose line of sight is aligned along the fiducial edge, for use on a plane table; telescope magnification, edge length and scales are confirmed on the quotation.
| Product | Telescopic Alidade |
| SKU | JA-SE-8843 |
| Sighting | Telescope, similar to the upper part of a theodolite |
| Diaphragm | Stadia diaphragm for tacheometric use |
| Fiducial edge | Line of sight aligned along the fiducial edge |
| Use | Plane table surveying; horizontal distance and elevation by stadia |
Applications of the telescopic alidade
The telescopic alidade is used on a plane table to sight features and draw rays along its fiducial edge, and its stadia hairs let the surveyor compute horizontal distances and elevations so points can be plotted without chaining.
- Plane table surveying by radiation and intersection
- Tacheometric distance measurement with stadia hairs
- Finding elevations of points for contouring
- Plotting detail in the field
- Surveying practicals for civil engineering, polytechnic and ITI students
Scope of supply and ordering
The listing covers the telescopic alidade. Telescope magnification, fiducial edge length, scales, case and the plane table itself are not described in the product data and are confirmed on the quotation with quantities.
MOQ, lead time and packing for the telescopic alidade are confirmed on each quotation for the quantity and delivery destination. Single instruments and class sets for plane table practicals are supplied, with export to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
How is a telescopic alidade different from a plain alidade?
It sights through a telescope instead of open sights, which gives clearer, longer sights.
Can it measure distance?
Yes. The telescope has a stadia diaphragm, so horizontal distances and elevations can be computed tacheometrically.
Is a plane table included?
No. The plane table is a separate item in the survey range and can be quoted together.
Related products
Plane tables and other survey instruments are listed in the JaincoLab survey equipment range.
Request a quote
To order the telescopic alidade, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.
