laser range finders
how can i easily and quickly determine an object's distance from me, without a laser range finder, or the like
i'm not too keen on sextants, astrolabes, slide rules, and their ilk, either. an accuracy of +/- 5 feet would be at the very outside of my desired knowledge. i know this might be impossible. rules of thumb are acceptable, but don't go overboard. thanks!
You can buy a cheap range finder that works with mirrors where you line up 2 images of the same object and read the distance from a scale. Another method would be if you know the height of an object... let's say another person... who is 2 meters tall, you can hold a ruler vertical at 0.5 meters away from your eye and measure the apparent height of the person on the ruler. The formula would be (distance) = 1/(ruler reading) in this case. This is a simple formula to use if you are looking at a 2 meter object and holding a ruler at 0.5 meters away, you would multiply 0.5 x 2 to get 1. You can use any objects but the math becomes more complicated if the values don't multiply to equal something even.
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Amazon.com Granted, if you're into home repair, you've got a 25-foot steel tape in your toolbox. But how many times have you grumbled at it when it didn't stay rigid from across the room? Tapes have their purpose, but for estimated measurements of up to 50 feet, the Laser Tape is the way to go... |
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Bushnell Medalist Pinseeker Rangefinder When strolling the links, Bushnell laser rangefinders constitute a dramatically more accurate picture than,Well, it looks to be about 225 yards away. Instant accurate information on your target is a valuable tool... |
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Bushnell Has The Right Accessories For Your Rangefinder! Bushnell Rangefinder Accessories feature: Golf Cart Mount: Quick Release Clamp attaches temporarily to golf cart Dedicated mount allows easy access Use at any golf course with carts Personal version (not a permanent mount) Pull Cart Mount: Adjustable mount/stand Allows for a more steady view Inserts into cart umbrella holder and the bottom of your laser rangefinder Strap-On Case: Padded case with fully adjustable strap Designed to wrap around golf bag May also be worn around the waist Magnetic flap allows for quick and easy access Zippered flap secures product during travel Fits most Bushnell Laser Rangefinders Protective Skinz: Protection for your Tour V2 Rangefinder Made of durable silicone rubber Personalize your rangefinder with a splash of color Click here for Tour V2 Rangefinder Colors: Blue Green Orange Pink Red Yellow Nobody Beats Bushnell! |
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Amazingly compact and simple to use, this Bushnell Scout 1000 rangefinder features Bushnell's exclusive Angle Range Compensation (ARC) technology, which accounts for terrain angle to give you an accurate "shoots-like" distance--all with the tap of a button... |
SICK Laser Range Finder - Intelligent Vehicles Class
A laser range finder is able to compute a distance up to 3 km with an accuracy of 99.5%.?
A laser range finder is able to compute a distance up to 3 km with an accuracy of 99.5%. What possible error is there in a reported measurement of 2500 meters?
99.5% accuracy = .5% error. .5% x 2500 =12.5meters
Hi, John here. I love golf and tech gadgets and the two merge here with these really cool Golf GPS Systems. I wasn't finding enough information on them to suit me on the internet and can't stand the stuffy pro shops so decided to put together this blog crammed with information, articles, reviews, pics, videos, you name it. Hope you enjoy!