Suunto
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The Suunto ([figure 1]) is a device that is used to measure slope and tree heights within fixed distances (15m, 20m) to the tree using the [[trigonometric principle]]. Therefore the angles between the actor and the tree are measured. The Suunto has an optical rangefinder to measure distances (15m, 20m ([figure 2])) optically and a sighting viewer to look on the height scales. The scales implemented are the same as the scales of [[Clinomaster]], but there is additionally implemented a scale for slope measurements in %. | The Suunto ([figure 1]) is a device that is used to measure slope and tree heights within fixed distances (15m, 20m) to the tree using the [[trigonometric principle]]. Therefore the angles between the actor and the tree are measured. The Suunto has an optical rangefinder to measure distances (15m, 20m ([figure 2])) optically and a sighting viewer to look on the height scales. The scales implemented are the same as the scales of [[Clinomaster]], but there is additionally implemented a scale for slope measurements in %. | ||
| − | + | <gallery width=300px height=300px> | |
| + | file: suunto-01_portrait.jpg|Figure 1a: Front | ||
| + | file:suunto-01_portrait_back.jpg|Figure 1b: Back | ||
==Handling== | ==Handling== | ||
# Select desired distance (15m, 20m) to the tree | # Select desired distance (15m, 20m) to the tree | ||
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# Tree height is calculated as :<math> {h_t} = {h_c} - {h_b} </math>. | # Tree height is calculated as :<math> {h_t} = {h_c} - {h_b} </math>. | ||
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[[file: suunto02_measure-bottom.jpg|thumb|300px|Figure 2: Live view trunk bottom measurement]] | [[file: suunto02_measure-bottom.jpg|thumb|300px|Figure 2: Live view trunk bottom measurement]] | ||
[[file: suunto03_measure-top.jpg|thumb|300px|Figure 3: Live view crown measurement]] | [[file: suunto03_measure-top.jpg|thumb|300px|Figure 3: Live view crown measurement]] | ||
Revision as of 11:58, 28 June 2012
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This section is still under construction! This article was last modified on 06/28/2012. If you have comments please use the Discussion page or contribute to the article! |
General description
The Suunto ([figure 1]) is a device that is used to measure slope and tree heights within fixed distances (15m, 20m) to the tree using the trigonometric principle. Therefore the angles between the actor and the tree are measured. The Suunto has an optical rangefinder to measure distances (15m, 20m ([figure 2])) optically and a sighting viewer to look on the height scales. The scales implemented are the same as the scales of Clinomaster, but there is additionally implemented a scale for slope measurements in %.
Figure 1a: Front
Figure 1b: Back
- ==Handling==
- The difference between the crown height and the bottom value is the tree height:
- Htotal = hcrown – hbottom
- ! Advantages
- ! Disadvantages
- ==Applications==
- ==Related articles==
