Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions
An entirely solid state photoelectric meter for the measurement of optical density is described. No light sealing arrangements are required, greatly simplifying the cleaning of the optical cell and facilitating the entry and exit of material when measurements are taken on flowing systems. Ambient li...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
1977-01-01
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| Series: | Measurement + Control |
| Online Access: | https://doi.org/10.1177/002029407701000101 |