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Optical proximity sensors for manipulators
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnson, A. R. |
| Copyright Year | 1973 |
| Description | A breadboard optical proximity sensor intended for application to remotely operated manipulators has been constructed and evaluated in the laboratory. The sensing head was 20 mm x 15 mm x 10 mm in size, and could be made considerably smaller. Several such devices could be conveniently mounted on a manipulator hand, for example, to align the hand with an object. Type 1 and Type 2 optical configurations are discussed, Type 1 having a sharply defined sensitive volume, Type 2 an extended one. The sensitive volume can be placed at any distance between 1 cm and approximately 1 m by choice of a replaceable prism. The Type 1 lateral resolution was 0.5 mm on one axis and 5 mm perpendicular to it for a unit focused at 7.5 cm. The corresponding resolution in the axial direction was 2.4 cm, but improvement to 0.5 cm is possible. The effect of surface reflectivity is discussed and possible modes of application are suggested. |
| File Size | 628568 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740005038 |
| Archival Resource Key | ark:/13960/t11p2vm9s |
| Language | English |
| Publisher Date | 1973-05-01 |
| Access Restriction | Open |
| Subject Keyword | Proximity Systems Engineering Surface Properties Manipulators Sensors Electronic Transducers Optical Measuring Instruments Reflectance Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |