Stereology
In this simplest form, stereology is the science where information about a three dimensional object is obtained from only a two-dimensional section of that structure.
Measurements are usually made with these graticules in the following manner:
- An adequate representation of sections of a specimen is obtained.
- The graticule is superimposed upon the specimen (or micrograph/projected image of the section).
- Finally, the interaction between the superimposed graticule and the test sections are recorded.
An overall introduction is given by: L.B. Brianrty. "Stereology: Methods for Quantitative Light and Electron Microscopy."
The Mertz Graticule (36 Points) - NGM1
Used to estimate the three-dimensional surface areas or the surface density of a component in a given volume, when the component does not have a random orientation. It comprises a test system with parallel curved lines used for measuring the intersection of points.
Reference
- W.A. Mertz. "Mikroskopic" Vol. 22 1967 pp 132-142.
| Pattern |
Description |
Dia |
Cat # |
| NGM1 |
Mertz for Stereology.
Surface chrome image. |
16 mm |
68035-16 |
| 19 mm |
68035-19 |
| 21 mm |
68035-21 |