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...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
1977-01-01
|
| Series: | Measurement + Control |
| Online Access: | https://doi.org/10.1177/002029407701000101 |
| _version_ | 1818328491903418368 |
|---|---|
| author | A. R. Churchley |
| author_facet | A. R. Churchley |
| author_sort | A. R. Churchley |
| collection | DOAJ |
| description | 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 light reaching the detector does not interfere with the measurements since the reference beam is coded. This beam is generated by a light emitting diode, avoiding many of the problems of conventional sources. The system has a wide application and its robustness should assure it a position in the field as well as the laboratory. Any change in the intensity of the reference beam can be measured, so the properties of transmissive, reflective or scattering systems may be measured. |
| first_indexed | 2024-12-13T12:33:01Z |
| format | Article |
| id | doaj.art-6b640a6f9e6343e0813a77e1065222d6 |
| institution | Directory Open Access Journal |
| issn | 0020-2940 |
| language | English |
| last_indexed | 2024-12-13T12:33:01Z |
| publishDate | 1977-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Measurement + Control |
| spelling | doaj.art-6b640a6f9e6343e0813a77e1065222d62022-12-21T23:45:57ZengSAGE PublishingMeasurement + Control0020-29401977-01-011010.1177/002029407701000101Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting ConditionsA. R. Churchley0 Formerly with National Carbonising Co Ltd, Mansfield, Notts. Now an Information Scientist with Unilever Research Port Sunlight, Wirral, MerseysideAn 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 light reaching the detector does not interfere with the measurements since the reference beam is coded. This beam is generated by a light emitting diode, avoiding many of the problems of conventional sources. The system has a wide application and its robustness should assure it a position in the field as well as the laboratory. Any change in the intensity of the reference beam can be measured, so the properties of transmissive, reflective or scattering systems may be measured.https://doi.org/10.1177/002029407701000101 |
| spellingShingle | A. R. Churchley Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions Measurement + Control |
| title | Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions |
| title_full | Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions |
| title_fullStr | Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions |
| title_full_unstemmed | Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions |
| title_short | Measurement of the Opacity of Smoke and Suspensions under Ambient Lighting Conditions |
| title_sort | measurement of the opacity of smoke and suspensions under ambient lighting conditions |
| url | https://doi.org/10.1177/002029407701000101 |
| work_keys_str_mv | AT archurchley measurementoftheopacityofsmokeandsuspensionsunderambientlightingconditions |