941:. To measure a large object like a room with a tape measure, one would need another person to hold the tape at the far wall and a clear line straight across the room to stretch the tape. With a laser measuring tool, the job can be completed by one operator with just a line of sight. Although tape measures are technically perfectly accurate, laser measuring tools are much more precise. Laser measuring tools typically include the ability to produce some simple calculations, such as the area or volume of a room. These devices can be found in hardware stores and online marketplaces.
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735:. When the rangefinder is equipped with a digital magnetic compass (DMC) and inclinometer it is capable of providing magnetic azimuth, inclination, and height (length) of targets. Some rangefinders can also measure a target's speed in relation to the observer. Some rangefinders have cable or wireless interfaces to enable them to transfer their measurement(s) data to other equipment like fire control computers. Some models also offer the possibility to use add-on
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905:, but it's usually much easier if you let a rangefinder do it when you are out hunting. In golfing where time is most important, a laser rangefinder comes useful in locating distance to the flag. However not all features are 100% legal for golf tournament play. Many hunters in the eastern U.S. don't need a rangefinder, although many western hunters need them, due to longer shooting distances and more open spaces.
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630:- this measures the time taken for a light pulse to travel to the target and back. With the speed of light known, and an accurate measurement of the time taken, the distance can be calculated. Many pulses are fired sequentially and the average response is most commonly used. This technique requires very accurate sub-
828:
A number of algorithms have been developed to merge the range data retrieved from multiple angles of a single object to produce complete 3D models with as little error as possible. One of the advantages offered by laser rangefinders over other methods of computer vision is in not needing to correlate
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The more powerful models of rangefinders measure distance up to 40 km and are normally installed either on a tripod or directly on a vehicle, ship, jet, helicopter or gun platform. In the latter case the rangefinder module is integrated with on-board thermal, night vision and daytime observation
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Laser rangefinders can vary in price, depending on the quality and application of the product. Military grade rangefinders need to be as accurate as possible and must also reach great distances. These devices can cost hundreds of thousands of dollars. For civilian applications, such as hunting or
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etc.) to calculate the distance to an object. The light atmospheric absorption attenuation method requires unmodulated incoherent light sources and low-frequency electronics that reduce the complexity of the devices. Due to this, low-cost light sources can be used for range-finding. However, the
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Some of the laser light might reflect off leaves or branches which are closer than the object, giving an early return and a reading which is too low. Alternatively, over distances longer than 360 m, if the target is in proximity to the earth, it may simply vanish into a
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scanner may be used to scan buildings, rock formations, etc., to produce a 3D model. The LIDAR can aim its laser beam in a wide range: its head rotates horizontally, a mirror flips vertically. The laser beam is used to measure the distance to the first object on its
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of the laser beam, as well as due to scintillation and beam wander effects, caused by the presence of water droplets in the air acting as lenses ranging in size from microscopic to roughly half the height of the laser beam's path above the earth.
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weapons less useful against military targets, various military arms may have developed laser-absorbing paint for their vehicles. Regardless, some objects don't reflect laser light very well and using a laser rangefinder on them is difficult.
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heat bubbles laterally may combine to make it difficult to get an accurate reading of the distance of an object, say, beneath some trees or behind bushes, or even over long distances of more than 1 km in open and unobscured desert terrain.
901:. Many rangefinders from Bushnell come with advanced features, such as ARC (angle range compensation), multi-distance ability, slope, JOLT (Vibrate when the target is locked), and Pin-Seeking. ARC can be calculated by hand using the
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Laser rangefinders used in computer vision applications often have depth resolutions of 0.1 mm or less. This can be achieved by using triangulation or refraction measurement techniques unlike to the time of flight techniques used in
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devices and are considered relatively eye-safe. Regardless of the safety rating, direct eye contact should always be avoided. Most laser rangefinders for military use exceed the laser class 2 energy levels.
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893:. Some of the more popular manufacturers are Caddytalk, Opti-logic Corporation, Bushnell, Leupold, LaserTechnology, Trimble, Leica, Newcon Optik, Op. Electronics,
781:, which became available in 1965. This was then followed by the Barr & Stroud LF2, which integrated the rangefinder into a tank sight, and this was used on the
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shooting to snipers and artillery. They can also be used for military reconnaissance and engineering. Usually tanks use LRF to correct the direct shoot solution.
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An important application is the use of laser rangefinder technology during the automation of stock management systems and production processes in steel industry.
869:. Laser beam reflects only from this reflector and so exact distance measurement is guaranteed. Laser rangefinders with anti-leaf filter are used for example for
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825:. In contrast to the military instruments, laser rangefinders offer high-precision scanning abilities, with either single-face or 360-degree scanning modes.
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In good conditions, skilled operators using precision laser rangefinders can range a target to within a meter at distances on the order of three kilometers.
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A long-range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides
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544:{\displaystyle D={\frac {1}{2}}ct={\frac {1}{2}}{\frac {c\phi }{\omega }}={\frac {c}{4\pi f}}(N\pi +\Delta \phi )={\frac {\lambda }{4}}(N+\Delta N)}
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Laser rangefinders are divided into four classes and several subclasses. Laser rangefinders available to consumers are usually laser
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and other techniques are often used instead. Laser rangefinders are sometimes classified as type of handheld scannerless
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Laser rangefinders are also used in several industries like construction, renovation and real estate as alternatives to
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Laser rangefinders may be effectively used in various sports that require precision distance measurement, such as
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in the air in proximity to the heated surface bending the laser light. All these effects must be considered.
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techniques to judge whether the object is moving towards or away from the rangefinder, and if so, how fast.
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Handheld military rangefinders operate at ranges of 2 km up to 25 km and are combined with
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taken by the pulse to be reflected off the target and returned to the sender. Due to the high
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application of the method is limited to atmospheric measurements or planetary exploration.
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principle by sending a laser pulse in a narrow beam towards the object and measuring the
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equipment. The most advanced military rangefinders can be integrated with computers.
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Range finding device that uses a laser beam to determine the distance to an object
1047:. University of Central Florida, Center for Research in Electro-Optics and Lasers
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in 1969, the first vehicle so-equipped with such a system. Both systems used
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Humidity, snow, dust, or other airborne particulates will diffuse the signal.
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Laser rangefinder TruPulse used for forest inventories (in combination with
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modules. Most handheld rangefinders use standard or rechargeable batteries.
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Siozos, Panagiotis; Psyllakis, Giannis; Velegrakis, Michalis (2022-11-02).
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Higher temperature and higher pressure (lower elevation) slightly decrease
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818:-related fields. This technology constitutes the heart of the so-called
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The pulse may be coded to reduce the chance that the rangefinder can be
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to an object. The most common form of laser rangefinder operates on the
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being narrow, it will eventually spread over long distances due to the
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features from two images in order to determine depth-information like
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227:. Environmental factors can significantly reduce range and accuracy:
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golf, devices are more affordable and much more readily accessible.
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provide an exact distance to targets located beyond the distance of
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is the integer number of wave half-cycles of the round-trip and Δ
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rifle and VECTOR IV Leica/Vectronix laser rangefinder binoculars
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30:"Laser range scanner" redirects here. Not to be confused with
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Smaller and less reflective targets return less information.
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is the amount of time for the round-trip between A and B.
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Time-of-flight principles applied to laser range-finding.
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coupled with the divergence of the laser itself and with
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A brief write-up on
Hunting Rangefinder and its types.
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The precision of an instrument is correlated with the
865:. These devices have anti-leaf filters and work with
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is the part of the phase delay that does not fulfill
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401:is the phase delay made by the light traveling and
67:. Unsourced material may be challenged and removed.
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1169:Are golf rangefinders legal for tournament play?
1142:Finlayson, D. M.; Sinclair, B. (January 1999).
773:The first commercial laser rangefinder was the
306:The distance between point A and B is given by
408:Then substituting the values in the equation,
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1278:
1038:"System design of a pulsed laser rangefinder"
814:, 3D object modelling, and a wide variety of
8:
2388:Length, distance, or range measuring devices
810:Laser rangefinders are used extensively in
656:Light attenuation by atmospheric absorption
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405:is the angular frequency of optical wave.
387:{\displaystyle t={\frac {\phi }{\omega }}}
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127:Learn how and when to remove this message
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861:Special laser rangefinders are used in
713:soldier with a GVS-5 laser rangefinder
1219:"Laser Standards and Classifications"
7:
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65:adding citations to reliable sources
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1145:Advances in Lasers and Applications
777:LF1, developed in association with
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925:Laser rangefinder: Bosch GLM 50 C
340:{\displaystyle D={\frac {ct}{2}}}
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909:Industrial production processes
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52:needs additional citations for
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638:Multiple frequency phase-shift
618:with laser rangefinder on the
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236:the speed of light through air
1:
1083:10.1080/2150704X.2022.2127130
750:sniper team displaying their
1336:Coordinate-measuring machine
752:Accuracy International AWSM
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1113:"En: Choose Business Unit"
354:is the speed of light and
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1781:Hemispherical photography
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644:to give a final measure.
225:digital signal processing
2341:Machine and metalworking
2086:Lombard Steam Log Hauler
1580:Machine and metalworking
1181:"Laser Rangefinder Cost"
1148:. Taylor & Francis.
286:, caused by temperature
207:. It is possible to use
2351:Measuring and alignment
1590:Measuring and alignment
1017:Satellite laser ranging
273:that serve to push the
1071:Remote Sensing Letters
1007:List of laser articles
1002:Laser warning receiver
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897:, Swarovski Optik and
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642:simultaneous equations
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171:beam to determine the
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2403:Surveying instruments
1253:at Wikimedia Commons
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917:Laser measuring tools
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812:3D object recognition
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2316:Cutting and abrasive
2298:WikiProject Forestry
1555:Cutting and abrasive
1391:Laser measuring tool
660:atmospheric compound
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61:improve this article
1841:Aerial firefighting
1296:and alignment tools
1251:Laser range finders
1205:"LRF Price Compare"
76:"Laser rangefinder"
2393:Laser applications
2181:Hydraulic debarker
2156:Firewood processor
1501:Thread pitch gauge
1326:Combination square
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871:forest inventories
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634:timing circuitry.
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558:is the wavelength
554:In this equation,
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265:These atmospheric
159:, also known as a
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2186:Log house moulder
1712:Tree planting bar
1687:Groasis Waterboxx
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1306:Architect's scale
1249:Media related to
1077:(11): 1164–1172.
775:Barr & Stroud
755:.338 Lapua Magnum
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2116:Washington Winch
2018:Portable sawmill
1833:Fire suppression
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846:
843:
820:time-of-flight
794:
791:
783:Chieftain tank
702:
699:
697:
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680:
673:
665:
649:Interferometry
627:Time of flight
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250:
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209:Doppler effect
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185:speed of light
177:time of flight
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2229:
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2226:Whoopie sling
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2206:Stump grinder
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1776:Diameter tape
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1668:afforestation
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1663:Tree planting
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1406:Measuring rod
1404:
1402:
1401:Marking gauge
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1155:9780750306324
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1046:
1045:charlotte.edu
1039:
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1018:
1015:
1013:
1012:Range imaging
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968:
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936:
932:
931:tape measures
923:
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526:
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492:
483:
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429:
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198:
196:
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190:
189:triangulation
186:
182:
178:
174:
170:
166:
162:
158:
151:measurements.
150:
146:
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131:
128:
120:
109:
106:
102:
99:
95:
92:
88:
85:
81:
78: –
77:
73:
72:Find sources:
66:
62:
56:
55:
50:This article
48:
44:
39:
38:
33:
19:
18:Laser ranging
2275:
2253:
2171:Hand compass
2123:Steam donkey
2008:Lumber edger
1993:Crosscut saw
1938:Log splitter
1863:Fire flapper
1818:Tree caliper
1800:
1786:Inclinometer
1771:Cruising rod
1720:(Tuley tube)
1718:Tree shelter
1714:(dibble bar)
1702:Root trainer
1491:Tape measure
1476:Straightedge
1466:Steel square
1461:Spirit level
1456:Speed square
1431:Radius gauge
1396:Lesbian rule
1366:French curve
1356:Feeler gauge
1311:Beam compass
1243:
1226:. Retrieved
1222:
1213:
1199:
1188:. Retrieved
1185:OpticsPlanet
1184:
1175:
1164:
1144:
1137:
1125:. Retrieved
1121:the original
1116:
1107:
1074:
1070:
1060:
1049:. Retrieved
1044:
1031:
957:
948:
928:
912:
880:
860:
835:
833:methods do.
831:stereoscopic
827:
819:
809:
793:3D modelling
772:
767:laser-guided
764:
760:
737:night vision
726:
718:Rangefinders
716:
696:Applications
655:
654:
647:
646:
637:
636:
625:
624:
620:Sukhoi Su-27
606:Technologies
571:
563:
553:
407:
396:
349:
305:
280:
264:
253:Despite the
252:
244:
218:
202:
167:that uses a
160:
156:
154:
123:
117:October 2016
114:
104:
97:
90:
83:
71:
59:Please help
54:verification
51:
2366:Woodworking
2236:Woodchipper
2028:Two-man saw
1943:Marking axe
1924:(shake axe)
1823:Wedge prism
1796:Rangefinder
1756:Angle gauge
1743:Mensuration
1676:Caulk boots
1605:Woodworking
1381:Laser level
1361:Flat spline
1223:www.rli.com
937:in 1993 in
857:technology)
823:3D scanners
722:point-blank
294:Calculation
275:atmospheric
267:distortions
165:rangefinder
2382:Categories
2254:Categories
2076:Helicopter
1917:Brush hook
1751:3D scanner
1724:Tree spade
1697:Pottiputki
1506:Try square
1496:Theodolite
1441:Set square
1426:Protractor
1416:Micrometer
1411:Meterstick
1321:Chalk line
1228:2017-04-11
1190:2017-04-11
1127:13 January
1051:2023-03-11
1023:References
977:Geodimeter
867:reflectors
733:monoculars
729:binoculars
632:nanosecond
614:An OLS-27
586:(that is,
259:divergence
87:newspapers
32:3D scanner
2286:equipment
2264:equipment
2216:Tree tyer
2196:Log flume
2176:Hand hook
2106:Skid cone
2101:Pike pole
2096:Pickaroon
2081:Log truck
2071:Harvester
2061:Forwarder
2051:Cant hook
1885:(rakehoe)
1868:Fire rake
1858:Driptorch
1813:Relascope
1808:Microtome
1707:Seed trap
1655:equipment
1421:Plumb-bob
1294:Measuring
1099:252826003
1091:2150-704X
855:Field-Map
533:Δ
516:λ
505:ϕ
502:Δ
496:π
481:π
464:ω
460:ϕ
380:ω
377:ϕ
288:gradients
221:rise time
215:Precision
149:elevation
2321:Forestry
2311:Cleaning
2191:Log pond
2151:Denailer
2066:Go-devil
2003:Head saw
1976:Chainsaw
1912:Broadaxe
1907:Billhook
1878:Helitack
1683:(hoedag)
1648:Forestry
1560:Forestry
1550:Cleaning
1486:T-square
1316:Calipers
971:See also
863:forestry
845:Forestry
789:lasers.
746:A Dutch
711:American
701:Military
173:distance
2346:Masonry
2336:Kitchen
2276:Commons
2201:Machete
2111:Skidder
2043:Logging
2033:Whipsaw
2013:Polesaw
1998:Dragsaw
1971:Bucksaw
1966:Bow saw
1928:Hatchet
1889:Pulaski
1692:Mattock
1585:Masonry
1575:Kitchen
1526:Wiggler
1471:Stencil
1446:Skirret
1331:Compass
964:class 2
960:class 1
891:archery
887:hunting
590:modulo
576:
560:
163:, is a
145:azimuth
101:scholar
2356:Mining
2326:Garden
2221:Tsakat
2128:Yarder
2091:Peavey
1933:Labrys
1883:McLeod
1681:Hoedad
1595:Mining
1565:Garden
1481:Square
1152:
1097:
1089:
954:Safety
939:France
889:, and
877:Sports
397:where
350:where
284:mirage
205:jammed
103:
96:
89:
82:
74:
2361:Power
2281:tools
2259:tools
2144:Other
2133:swing
2023:Resaw
1846:DC-10
1801:laser
1766:Chain
1651:tools
1600:Power
1436:Ruler
1095:S2CID
1041:(PDF)
945:Price
899:Zeiss
895:Nikon
839:LIDAR
806:path.
803:LIDAR
801:This
199:Pulse
193:lidar
169:laser
108:JSTOR
94:books
2331:Hand
1958:Saws
1922:Froe
1899:Axes
1851:UAVs
1653:and
1570:Hand
1516:Vise
1150:ISBN
1129:2022
1087:ISSN
883:golf
787:ruby
748:ISAF
616:IRST
255:beam
181:time
147:and
80:news
1376:Jig
1079:doi
962:or
731:or
709:An
594:);
63:by
2384::
1221:.
1183:.
1115:.
1093:.
1085:.
1075:13
1073:.
1069:.
1043:.
885:,
873:.
841:.
684:,
679:CH
677:,
672:CO
670:,
580:Δφ
578:;
195:.
155:A
1665:,
1640:e
1633:t
1626:v
1286:e
1279:t
1272:v
1231:.
1207:.
1193:.
1158:.
1131:.
1101:.
1081::
1054:.
688:2
686:O
681:4
674:2
668:O
666:2
664:H
662:(
600:N
596:N
592:π
588:φ
584:π
572:f
568:/
564:c
556:λ
539:)
536:N
530:+
527:N
524:(
519:4
511:=
508:)
499:+
493:N
490:(
484:f
478:4
474:c
469:=
457:c
449:2
446:1
441:=
438:t
435:c
430:2
427:1
422:=
419:D
403:ω
399:φ
372:=
369:t
356:t
352:c
333:2
329:t
326:c
320:=
317:D
238:.
130:)
124:(
119:)
115:(
105:·
98:·
91:·
84:·
57:.
34:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
