Definitions for spherometer
spher·om·e·ter

Princeton's WordNetRate this definition:0.0 / 0 votes

1. spherometernoun

   a measuring instrument for measuring the curvature of a surface

WiktionaryRate this definition:0.0 / 0 votes

1. spherometernoun

   A device used to measure the curvature of a surface, such as a lens.

ChatGPTRate this definition:0.0 / 0 votes

1. spherometer

   A spherometer is a precision measuring instrument used to measure the curvatures of surfaces, such as the curvature of lenses in optics. It consists typically of three small fixed legs of equal length and a fourth movable leg with a micrometer gauge, arranged in a circular frame. The difference in height between a flat surface and the test surface can be measured to calculate the radius of curvature.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Spherometernoun

   an instrument for measuring the curvature of spherical surface, as of lenses for telescope, etc

2. Etymology: [Sphere + -meter: cf. F. sphromtre.]

WikidataRate this definition:0.0 / 0 votes

1. Spherometer

   A spherometer is an instrument for the precise measurement of the radius of a sphere. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens. The usual form consists of a fine screw moving in a nut carried on the centre of a small three-legged table or frame; the feet forming the vertices of an equilateral triangle. The lower end of the screw and those of the table legs are finely tapered and terminate in hemispheres, so that each rests on a point. If the screw has two turns of the thread to the millimetre the head is usually divided into 50 equal parts, so that differences of 0.01 millimetre may be measured without using a vernier. A lens, however, may be fitted, in order to magnify the scale divisions. A vertical scale fastened to the table indicates the number of whole turns of the screw and serves as an index for reading the divisions on the head. A contact-lever, delicate level or electric contact arrangement may be attached to the spherometer in order to indicate the moment of touching more precisely than is possible by the sense of touch. To measure the radius of a sphere—e.g. the curvature of a lens—the spherometer is levelled and read, then placed on the sphere, adjusted until the four points exert equal pressure, and read again. The difference gives the thickness of that portion of the sphere cut off by a plane passing through the three feet.

Matched Categories

1. • Measuring Instrument

How to pronounce spherometer?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say spherometer in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of spherometer in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of spherometer in Pythagorean Numerology is: 7

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=spherometer
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Spherometer
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/spherometer
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=spherometer