• Thumbnail for 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...
    14 KB (1,669 words) - 10:23, 29 January 2025
  • Thumbnail for Abbe refractometer
    An Abbe refractometer is a bench-top device for the high-precision measurement of an index of refraction. Ernst Abbe (1840–1905), working for Carl Zeiss...
    5 KB (551 words) - 16:13, 25 January 2025
  • Thumbnail for Differential refractometer
    A differential refractometer (DRI), or refractive index detector (RI or RID) is a detector that measures the refractive index of an analyte relative to...
    15 KB (1,437 words) - 19:53, 22 May 2025
  • using a refractometer. A few grapes are crushed between the fingers and the must is dripped onto the glass of the refractometer. The refractometer will be...
    3 KB (284 words) - 01:54, 26 September 2023
  • Thumbnail for Brix
    metalworking processes. Dissolved solids can also be measured in °Bx with a refractometer, but it must be calibrated for the particular dissolved substance, because...
    20 KB (3,016 words) - 11:39, 9 May 2025
  • Inline process refractometers are a type of refractometer designed for the continuous measurement of a fluid flowing through a pipe or inside a tank. First...
    5 KB (578 words) - 10:23, 12 January 2023
  • Thumbnail for Traditional handheld refractometer
    A traditional handheld refractometer is an analog instrument for measuring a liquid's refractive index. It works on the critical angle principle by which...
    2 KB (177 words) - 03:34, 2 May 2022
  • Thumbnail for Gemology
    characteristics and properties. These include: Corrected 10× loupe Microscope Refractometer Polarising filter Magnifying eyepiece Contact liquid for RI (refractive...
    12 KB (1,373 words) - 05:29, 19 June 2025
  • Thumbnail for Refractive index
    various refractometers, such as Abbe refractometer. Measurement accuracy of such typical commercial devices is in the order of 0.0002. Refractometers usually...
    82 KB (9,202 words) - 00:26, 16 June 2025
  • A digital handheld refractometer is an instrument for measuring the refractive index of materials. Most operate on the same general critical angle principle...
    3 KB (350 words) - 19:56, 12 July 2024
  • Thumbnail for Ernst Abbe
    condenser, used for microscope illumination. In 1871, he designed the first refractometer, which he described in a booklet published in 1874. He developed the...
    41 KB (3,387 words) - 15:34, 22 May 2025
  • their composition or purity. A refractometer is the instrument used to measure refractive index ("RI"). Although refractometers are best known for measuring...
    2 KB (326 words) - 08:50, 11 March 2024
  • Thumbnail for Ibn al-Haytham
    Ḥasan Ibn al-Haytham (Latinized as Alhazen; /ælˈhæzən/; full name Abū ʿAlī al-Ḥasan ibn al-Ḥasan ibn al-Haytham أبو علي، الحسن بن الحسن بن الهيثم; c. 965 –...
    135 KB (15,023 words) - 01:52, 12 June 2025
  • Pellin–Broca prism Abbe refractometer, a bench-top refractometer that offers the highest precision of the different types of refractometers Abbe sine condition...
    1 KB (171 words) - 17:30, 30 December 2020
  • direct-reading refractometer for liquids, which has since been used in many practical applications. He designed the "UMIST Refractometer" subsystem for...
    9 KB (649 words) - 03:22, 15 June 2025
  • by using a refractometer by crushing a few grapes between the fingers and letting the must drip onto the glass prism of the refractometer. In countries...
    5 KB (627 words) - 17:39, 2 August 2022
  • gravity—(using a hydrometer test strip or some sort of floating indicator), Refractometer—which measures the refractive index of the antifreeze solution, and...
    33 KB (3,843 words) - 23:55, 2 June 2025
  • Thumbnail for Carl Pulfrich
    Centennial Story of Success Carl Pulfrich Award "Pulfrich refractometer". www.refractometer.pl. Retrieved 2015-10-11. Works by or about Carl Pulfrich...
    5 KB (605 words) - 05:03, 31 August 2023
  • built into the firmware of modern refractometers and is the basis for calibration of purely optical refractometers which read in Brix. Temperature correction...
    3 KB (355 words) - 23:16, 14 August 2020
  • Thumbnail for Kilju
    bubble per minute. Then the sugar reserve is measured with a must weight refractometer/hygrometer. If there's sugar left, then more yeast should be added to...
    17 KB (2,049 words) - 01:57, 12 June 2025
  • Thumbnail for Glucose
    polarimeter. For sugar mixtures, the concentration can be determined with a refractometer, for example in the Oechsle determination in the course of the production...
    124 KB (13,033 words) - 17:20, 8 June 2025
  • Thumbnail for Herbert Smith (mineralogist)
    discovered the mineral paratacamite in 1906, and developed a jeweller's refractometer for the rapid identification of gems. The minerals smithite and herbertsmithite...
    13 KB (1,239 words) - 01:55, 27 May 2025
  • Thumbnail for Honey
    alter its refractive index. Water content can easily be measured with a refractometer. Typically, the refractive index for honey ranges from 1.504 at 13%...
    119 KB (12,850 words) - 23:01, 7 June 2025
  • Thumbnail for Syrup
    an enzymatic process that converts it to sugars. A must weight-type refractometer is used to determine the sugar content in the solution. Food portal...
    11 KB (1,045 words) - 17:46, 4 May 2025
  • Thumbnail for Tanzanite
    distinguished from tanzanite in three ways. The first is by using a refractometer: forsterite will show a refractive index of between 1.63 and 1.67, while...
    24 KB (2,585 words) - 11:59, 16 June 2025
  • Thumbnail for Mead
    before and throughout the fermentation process using a hydrometer or refractometer, mead makers can determine the proportion of alcohol by volume in the...
    54 KB (5,968 words) - 21:11, 18 June 2025
  • Thumbnail for Geissler tube
    transmitters. Another use around 1900 was as the light source in Pulfrich refractometers. Geissler tubes are sometimes still used in physics education to demonstrate...
    7 KB (825 words) - 00:30, 11 November 2024
  • Thumbnail for Saccharimeter
    This is commonly achieved using a measurement of refractive index (refractometer) or the angle of rotation of polarization of optically active sugars...
    1 KB (78 words) - 01:17, 18 April 2021
  • a balloon hydrometer, a nerve gas detector, a lab refractometer and process control refractometers. While from its start the company had been self-financed...
    13 KB (1,003 words) - 18:48, 4 June 2025
  • sensitive detectors which includes UV-VIS absorption, differential refractometer (DRI) or refractive index (RI) detectors, infrared (IR) absorption and...
    19 KB (2,347 words) - 11:04, 24 May 2025