|
Accurate hill slope measurement is very easy. It requires some simple materials and a calculator.
Materials Two wooden stakes at least 18 inches long. Three feet of twine, string or wire Tape measure Small level Rubber mallet
Set-up Tie the string around the top of each wooden stake at equal distances from the top.
Measurement Method Pound one stake at the top of the hill. Pound the second stake down the hill so the string is taught. Use the level to make sure the stakes are vertical and the string is straight and level with the ground. That is, place the level along each stake and on the string. Make adjustments until both the stakes and the string are level.
Now measure the length of the string between the two stakes. Write this down as String. Then measure the height of the top stake from the string to the lowest point sticking out of the ground. Write this down as Top Stake Height. Then measure the bottom stake in the same way and write this down as Bottom Stake Height. Then measure the distance between the two stakes along the ground and write this down as Ground Length.
Make the measurements in inches, and round down or up if you just want an estimate.
Slope Calculation Follow this procedure for each measurement. Once all of the measurements are converted, use the steps below to calculate the slope of the hill.
Step 1: Calculate the height difference:
Height difference = Bottom Stake Height —Top Stake Height
Step 2: Calculate the slope. This is a ratio that indicates the steepness of the hill.
Slope (H/L)= Height Difference divided by String Length
Read the hill’s angle of elevation from the table below.
|
|
Hill Measurement |
|
Paradise Robotics 2 Regan Boulevard Barrington, IL 60010 Phone: 847-960-8520 Fax: 253-595-1683 E-mail: Click here |
|
To contact us: |
|
*Lawnbott orders include: Free Shipping! 48 contiguous states, excluding offers/promotions/giveaways/sales and demo units. |
|
Free Shipping!* |
|
More robotic lawn mower information…. |
 |
|
Vacuum Robots |
|
Pool Cleaning Robots |
|
Robot Toys |
|
Gutter Cleaning Robot |
|
Robotic Lawn Mower |
|
Other Products |
|
Automatic Cat Litter Box |
|
Other Robots |
|
Gadgets |
|
Home | Lawnbott | Auto Pet Care | Robot Vacuums | Robot Toys | About | Contact |
|
Copyright © 2007-2010 Paradise Robotics All rights reserved. |
|
Hill Angle of Elevation |
|||||||
|
H/L |
Angle |
|
H/L |
Angle |
|
H/L |
Angle |
|
0.02 |
1° |
|
0.19 |
11° |
|
0.38 |
21° |
|
0.03 |
2° |
|
0.21 |
12° |
|
0.40 |
22° |
|
0.05 |
3° |
|
0.23 |
13° |
|
0.42 |
23° |
|
0.07 |
4° |
|
0.25 |
14° |
|
0.45 |
24° |
|
0.09 |
5° |
|
0.27 |
15° |
|
0.47 |
25° |
|
0.11 |
6° |
|
0.29 |
16° |
|
0.49 |
26° |
|
0.12 |
7° |
|
0.31 |
17° |
|
0.51 |
27° |
|
0.14 |
8° |
|
0.32 |
18° |
|
0.53 |
28° |
|
0.16 |
9° |
|
0.34 |
19° |
|
0.55 |
29° |
|
0.18 |
10° |
|
0.36 |
20° |
|
0.58 |
30° |