Wndsn Quadrant Telemeters
Description and use.
The Wndsn Quadrant Telemeter is a simple observational tool for measuring angles via various inputs combined with a number of means to directly process the acquired values.
Initial Quadrant Telemeter Setup
- To install, knot the string to the device through the provided hole.
- Add knots at 57.3/2 and 57.3/3.
- Measure a length of 57.3 cm (22.56 inches) from eye to device.
- Make a small loop at the end to fasten the plumb line weight; for measuring distances, hold onto the string with your teeth or hold the respective knot up to eye level.
Installing the Cursor
The cursor is a sliding marker on the string, used to store a value or to project from one scale to another. To install, overhand-knot a small piece of different-colored string to the measuring string before the first distance knot.
Positioning the Knots
- Make an overhand knot and guide an awl, needle, or equivalent through the loop.
- Optionally, or for very thin string (below 0.35 mm), thread a short piece of string through the loop.
- Carefully tighten the knot around the awl and the extra piece of string and slide the knot laterally along the string, using a ruler, to the intended position.
- Fully tighten the knot and remove the awl. You now have a knot determining an exact length. Use different color of string for the extra thread for additional marking purposes.