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A goniometer is an instrument that either measures angles or allows an object to be rotated to a precise angular position. The term goniometry is derived from two Greek words, gonia, meaning angle and metron, meaning measure. This article is about angles in geometry. ...
Measure can mean: To perform a measurement. ...
There are many types, each specialised for its particular application.
 A ramé-hart Contact Angle Goniometer The contact angle goniometer was invented by Dr. William Zisman of the United States Naval Research Laboratory in Bethesda, MD and the first of this type of instrument was built by ramé-hart during the 1960's. Currently, ramé-hart instrument co. builds not only classic manual contact angle goniometers based on Dr. Zisman's design, but also automated instruments that use cameras and software and are used not only for contact angle and surface energy applications, but also surface tension using pendant drop, sessile drop, and myriad other techniques. The manual contact angle goniometer uses an eyepiece with microscope. The newer generation of instruments use a camera and software to capture and analyze the drop shape. Image File history File links Goni_std. ...
Image File history File links Goni_std. ...
Bust of Thomas Edison at the front gate of the Naval Research Laboratory. ...
Bethesda is an urbanized, but unincorporated area in Montgomery County, Maryland, near Washington, DC. It takes its name from a church once located there, the Bethesda Presbyterian Church (built 1820), which in turn was named from a passage in the Christian New Testament. ...
Surface energy quantifies the disruption of chemical bonds that occurs when a surface is created. ...
In physics, surface tension is an effect within the surface layer of a liquid that causes the layer to behave as an elastic sheet. ...
 A goniometer for crystallography Goniometers are used in crystallography for measuring angles between crystal faces. They are also used in X-ray diffraction to rotate the samples. Other versions range from devices which measure human joint movement to ones which determine the angle of contact between a liquid droplet and a flat substrate. Image File history File links Goniometer. ...
Image File history File links Goniometer. ...
Crystallography (from the Greek words crystallon = cold drop / frozen drop, with its meaning extending to all solids with some degree of transparency, and graphein = write) is the experimental science of determining the arrangement of atoms in solids. ...
X-ray crystallography is a technique in crystallography in which the pattern produced by the diffraction of x-rays through the closely spaced lattice of atoms in a crystal is recorded and then analyzed to reveal the nature of that lattice. ...
See also
It has been suggested that this article or section be merged with Instrumentation engineering. ...
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