enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Refractometer - Wikipedia

   en.wikipedia.org/wiki/Refractometer

   A refractometer is a laboratory or field device for the measurement of an index of refraction ( refractometry ). The index of refraction is calculated from the observed refraction angle using Snell's law. For mixtures, the index of refraction then allows the concentration to be determined using mixing rules such as the Gladstone–Dale relation ...

3. Krüss Optronic - Wikipedia

   en.wikipedia.org/wiki/Krüss_Optronic

   Krüss Optronic. Coordinates: 53°36′28.4″N 10°00′27.8″E. A. Krüss Optronic GmbH is a German manufacturer and distributor of optical and electronic laboratory equipment as well as instruments for gemology. The Hamburg -based company is one of the traditional Hanseatic family-owned enterprises and one of the oldest companies in Germany.

4. Diamond simulant - Wikipedia

   en.wikipedia.org/wiki/Diamond_simulant

   A diamond simulant, diamond imitation or imitation diamond is an object or material with gemological characteristics similar to those of a diamond. Simulants are distinct from synthetic diamonds, which are actual diamonds exhibiting the same material properties as natural diamonds.

5. Gemology - Wikipedia

   en.wikipedia.org/wiki/Gemology

   Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a geoscience and a branch of Stoneology and mineralogy. Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify and evaluate gems. [ 1][ 2] Examining a pink sapphire under a gemmological microscope.

6. Gemstone irradiation - Wikipedia

   en.wikipedia.org/wiki/Gemstone_irradiation

   Gemstone irradiation is a process in which a gemstone is artificially irradiated in order to enhance its optical properties. High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1] As a result, the gem­stone's color may be significantly ...

7. Abbe refractometer - Wikipedia

   en.wikipedia.org/wiki/Abbe_refractometer

   Ernst Abbe(1840–1905), working for Carl Zeiss AGin Jena, Germany in the late 19th century, was the first to develop a laboratory refractometer. These first instruments had built-in thermometers and required circulating water to control instrument and fluid temperatures. They also had adjustments for eliminating the effects of dispersionand ...

8. Refractive index - Wikipedia

   en.wikipedia.org/wiki/Refractive_index

   A handheld refractometer used to measure the sugar content of fruits This type of device is commonly used in chemical laboratories for identification of substances and for quality control . Handheld variants are used in agriculture by, e.g., wine makers to determine sugar content in grape juice, and inline process refractometers are used in, e ...

9. Refractometry - Wikipedia

   en.wikipedia.org/wiki/Refractometry

   Refractometry is the analytical method of measuring substances' refractive index (one of their fundamental physical properties) in order to, for instance, assess their composition or purity. A refractometer is the instrument used to measure refractive index ("RI"). Although refractometers are best known for measuring liquids, they are also used ...