Contact .28tactile measurement.29 Surface metrology

-





stylus-based contact instruments have following advantages:



the system simple , sufficient basic roughness, waviness or form measurement requiring 2d profiles (e.g. calculation of ra value).
the system never lured optical properties of sample (e.g. highly reflective, transparent, micro-structured).
the stylus ignores oil film covering many metal components during industrial process.

technologies:



contact profilometers – traditionally use diamond stylus , work phonograph
atomic force microscope considered contact profilers operating @ atomic scale.






Comments

Post a Comment

Popular posts from this blog

1940-1941 Pontiac Torpedo

-
1941 pontiac streamliner torpedo 8 sedan coupe (b-body) 1941 pontiac deluxe 6 or 8 torpedo 2-door sedan (a-body) 1941 pontiac deluxe torpedo 8 metropolitan sedan (a-body) in 1940, pontiac introduced torpedo on general motors c-body. along oldsmobile, pontiac had distinction of having 3 of gm s mainstream platforms year, last 1 more year. new c-body 1940 pontiac torpedo shared cadillac series 62, buick roadmaster , super, , oldsmobile series 90 featured cutting-edge torpedo styling. shoulder , hip room on 5 in (127 mm) wider, running boards eliminated , exterior streamlined , 2–3 in (51–76 mm) lower. when combined column-mounted shift lever cars offered true 6 passenger comfort. these changes had been influenced cadillac sixty special. the 1940 torpedo had larger windows , wider seats other pontiacs, front , rear ventiplanes on 4-door sedans , long gracefully streamlined rear decks. concealed hinges used on doors. doors wide. hood ornament had plastic indian head ...
Read more

1920–1923 List of 1920s jazz standards

-
1920 – avalon song written al jolson, buddy desylva , vincent rose. jolson introduced song, taking number 2 on charts in 1921, , used in musicals sinbad , bombo. song possibly written rose, jolson s popularity performer allowed him claim co-credit. opening melody taken giacomo puccini s aria e lucevan le stelle opera tosca, , composers sued puccini s publishers in 1921 $25,000 , subsequent royalties. 1920 – margie song composed con conrad , j. russel robinson lyrics benny davis. introduced original dixieland jazz band , popularized eddie cantor s 1921 recording. song 1 of first hits both conrad , davis, , later used in films margie (1946) , eddie cantor story (1954). name inspired cantor s five-year-old daughter. song known little margie . 1921 – sheik of araby song composed ted snyder lyrics harry b. smith , francis wheeler. written in response popularity of rudolph valentino film sheik. club royal orchestra introduced song on first recording in 1921. 2 recordings of trombonist...
Read more

Sovereign Building Zollinger-Harned Company Building

-
the sovereign building in 2011 the whitehall mall store sold leh s department store, several years flagship store on hamilton street in allentown remained vacant. added national register of historic places in 1979. in december 1982 allentown store purchased sovereign realty , development. building renovated , reopened sovereign building in may 1984. renovations included glass-arched entrance pedestrian plaza between hamilton , court streets leading grapefruit-domed lobby decor of antique brass, mirrors, greenery , wing-backed chairs. main floor , basement developed retail spaces, while upper floors turned 42 private office suites. sovereign later went financial difficulties , building sold @ sheriffs sale on 22 september 1989. today building operated office building owner resides in philadelphia.
Read more