TOOLS MEASURE DISTANCE
How Do I Accurately Measure the Contours of a Surface From Distance ?
I know various electronic measuring devices exist to give the distance of a surface from the measurer. Such as hand held surveying tools etc using a laser beam etc.
But is it possible to get a very accurate measurement of an entire rugged surface of a structure from a distance of several metres away ? Such as the surface of a rock face or the carved wall of a building ?
This is actually relatively easy and the technology is used in several industries, notably the automobile industry.
Essentially, you use an optical projector to project multiple parallel line, scattered dot or more complex encoded patterns on the surface. These projected patterns are then picked up by multiple cameras and a computer calculates the surface from the distortion of the patterns.
In case of parallel stripes a flat surface will reflect parallel stripes. If the surface is curved, the stripes will appear closer in some places and wider apart in others. From that one can calculate the local angle of the surface relative to the projecting beam and from that, by integration, the absolute contour. But there are much more advanced test patterns than that.
Google Maps Distance Measuring Tool
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WHEEL MEASURE ROLATAPE PROF $151.49 CST/Berger 400R When a tough, all-purpose measuring wheel is needed, nothing fills the order like the Rolatape 400 Series. Its 4-foot circumference handles the toughest measuring needs for heavy construction, large commerical operations, utility companies, land surveying and other critical measuring applications. When measuring demands are tough, the 400 Series gets the job done…. |
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Map Wheel Compass Distance Measure Travel Mapping Tool Map Measuring Pen Wheel & Compass Great For Measuring Distances On Road Maps. This is a new map measuring pen wheel and compass. Great for measuring distances on road maps. Just roll the wheel along your intended route to measure the length and it will give you the distance. It also has a compass to help you find your way. It measures approximately 6 1/2″ x 9/16″ (165 x 14 mm) We work hard to upda… |
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MULTI-MEASURE COMBO PRO $119.99 Measures up to 250 feet when used with its electronic target, the Combo pro uses both sound waves and an infered beam. Measures up to 60 feet in a single unit mode using ultrasound. Has a built-in calculator to add linear measurments and cumpute areas and volumes, Features intellegent software, improved accuracy, 7 storage memories, larger, easy to read display and measures from front or back o… |
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Calculated Industries Prexiso X2 3350 Laser Distance Measuring Tool $99.94 Measures to 100-feet With Accuracy of 1/8-Inch or Better Over the Entire Range This CRL Prexiso X2 Laser Distance Measurer will measure distances in feet-inches, inches or meters from four inches to 100 feet (0.1 m to 30.5 m). It is accurate to 1/8 inch (3.2 millimeter) or better over entire range. This unit is designed for indoor and limited outdoor applications while being able to measure and ca… |
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Ultrasonic Distance Measurer with Laser Pointer $21.95 Measure and calculate the area or volume of a room in feet or meters! The Utrasonic Distance Measurer comes equiped with a Laser Pointer and can calculate the area or volume of any space, making it perfect for home handymen and professional builders alike. This professional unit also features water proof construction, a temperature display and can easily add and subtract your measurements…. |
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Surveyor’s 300′ Open-Reel SAE Tape Measure – Multi-Strand Fiberglass Tape – Lifetime Warranty $14.99 Must-have tool for anyone whose profession requires accurate distance measurements for cost estimating, surveying construction or appraisal. Overall dimensions: 16″L x 12″W x 1″H; 2.5 lbs. Manufacturer’s Lifetime Warranty…. |
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Sonin Multi-Measure Combo Pro Electronic Distance Measuring Tool $145.82 SONIN Electronic Distance Measuring Tools send out narrow beams of sound waves that “bounce” off solid objects back to the hand-held receiver. Custom electronics and a microprocessor then convert elapsed time into a distance measurement and display it on the LCD. (When used with its electronic target, the Combo PRO model uses both sound waves and an infrared beam.) Every SONIN Electronic Distance … |
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W300 GPS-based Sport Tool for Walking $179.95 Navman Sport.Tools use state-of-the-art GPS satellite technology to provide sport enthusiasts with the information they need: speed, distance and much more. With accurate and up-to-the-second readings, performance is measurable, training more effective. You just get more fun out of your sport. All the Sport.Tools in the series have been custom-designed to meet the demands of various sports. And th… |
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Coffee Measure $1 Item: 4301 AV Ecko Stainless Steel Coffee Measure |
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35′ Tape Measure 1452 $39.99 Item: 1452 35 foot Tape Measure |
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Black and Decker Tape Measure $14.88 Item: 3503 Black and Decker Tape Measure with Laser Line |
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200′ Tape Measure 3417 $5.24 Item: 3417 200′ Tape Measure Ideal for the jobsite workshop or garage! Great for home remodeling and landscaping! |
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Quick Glance Tape Measure 3286 $3.14 Item: 3286 Quick Glance Tape Measure |
