Astronomy View all facts Glossary Help| Astronomy View all facts Glossary Help |
| physical object > artifact > device > instrument > optical device > detector > microphotometer |
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| microphotometer comparison table | ||
| Subject | has definition | is a kind of |
|---|---|---|
| detector | optical device | |
| microphotometer | A device for measuring the variations in density in a photographic emulsion. | detector |