Instrument TOI
TOI is an optical-electronic observation instrument for ships' radar antennas. The instrument is an additional back-up providing visual observation in the direction on the antennas directional diagram axis.
The instrument provides the following capabilities:
- imaging of objects located in the observation zone on a PC display;
- range finding to observed objects;
- visualization of objects in two fields of view of television cameras.
The instrument is inflexibly fastened to its radar so that the direction of the visor axis of TOI and the directional diagram axis of the antenna coincide. Stabilization of the device is executed by the antenna's stabilization means. TOI performs two main functions: it is a device for visual verification of the radar antenna data; it performs back-up functions in case the antenna is out of order.
Second modification of TOI
Basic specifications:
| Angular size of the vision field of television channels - wide view angle
- narrow view angle |
12 õ 9 angular degree
3 õ 2.2 angular degree |
Maximum range of target detection by the TV-channel
(angular sizes of the target — not less than 5 mRad with the optical contrast not less than 0.2 in the conditions of meteorological range of vision not less than 25 km) | 20 km |
Maximum target range measured with a laser range finder
(angular sizes of the target not less than 5 mRad with the reflectivity coefficient not less than 0.5 in the conditions of meteorological range of vision not less than 25 km with presence of humidity in the air no more than 10 g/m3) | 20 km |
| RMS error of range detection by the laser range finder | no more than 5 m |
| Weight | no more than 36 kg |
| Electric power supply: DC voltage | 27 V |
| TOI power consumption at the nominal voltage | no more than 600 W |
