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2. Autocollimator - Wikipedia

   en.wikipedia.org/wiki/Autocollimator

   An autocollimator works by projecting an image onto a target mirror and measuring the deflection of the returned image against a scale, either visually or by means of an electronic detector. A visual autocollimator can measure angles as small as 1 arcsecond (4.85 microradians), while an electronic autocollimator can have up to 100 times more ...

3. File:Angle measure.svg - Wikipedia

   en.wikipedia.org/wiki/File:Angle_measure.svg

   $ tex Angle_measure.tex && dvips -E Angle_measure.dvi; Outline fonts $ eps2eps -dNOCACHE Angle_measure.ps Angle_measure2.eps; Fix bounding box $ ps2epsi Angle_measure2.eps Angle_measure.eps; Convert to Sketch $ pstoedit -f sk Angle_measure.eps Angle_measure.sk; Convert to SVG $ skconvert Angle_measure.sk Angle_measure.svg; Fix Angle_measure.svg ...

4. Theodolite - Wikipedia

   en.wikipedia.org/wiki/Theodolite

   A theodolite (/ θ i ˈ ɒ d ə ˌ l aɪ t /) [1] is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes. The traditional use has been for land surveying , but it is also used extensively for building and infrastructure construction , and some specialized applications such ...

5. Inclinometer - Wikipedia

   en.wikipedia.org/wiki/Inclinometer

   An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity's direction. It is also known as a tilt indicator , tilt sensor , tilt meter , slope alert , slope gauge , gradient meter , gradiometer , level gauge , level meter , declinometer , and pitch & roll ...

6. Glossmeter - Wikipedia

   en.wikipedia.org/wiki/Glossmeter

   Gloss meter in action. A glossmeter (also gloss meter) is an instrument which is used to measure specular reflection gloss of a surface. Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle.

7. Tiltmeter - Wikipedia

   en.wikipedia.org/wiki/Tiltmeter

   A newer technology using microelectromechanical systems (MEMS) sensors enables tilt angle measuring tasks to be performed conveniently in both single and dual axis mode. Ultra-high precision 2-axis MEMS driven digital inclinometer/ tiltmeter instruments are available for speedy angle measurement applications and surface profiling requiring very ...

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Rotary encoder - Wikipedia

   en.wikipedia.org/wiki/Rotary_encoder

   Rotary encoder for angle-measuring devices marked in 3-bit binary-reflected Gray code (BRGC). The inner ring corresponds to Contact 1 in the table. Black sectors are "on". Zero degrees is on the right-hand side, with angle increasing counter-clockwise. To avoid the above problem, Gray coding is used. This is a system of binary counting in which ...