Presentation on theme: "TV Optical Head Description : TV Optical Head GIG No. :"— Presentation transcript:
1TV Optical Head Description : TV Optical Head GIG No. : 348479 Sec Ref No. : 810PGWPart No. : GCost : Rs. 10, 92, 720/-(Assessed)7B/PECHORA/SNR-125/PR/01/06-11 Qty-07(1st & 2nd line servicing requirement)
2COMPOSITION OF TV OPTICAL TRACKER TV optical tracker used in Pechora (MGR) is comprised of the following components:(a) Optical section (Optical head)(b) Light to signal converter (vidicon tube)(c) Video channel(d) Signal to light converter (picture tube )(e) Scanning devices &(f) Synchronizing device
3FUNCTION OF THE ITEMTo enhance the operational capability of Pechora (MGR) under anti radiation missile attack and EW environment, Pechora MGR has been provided withfacility for optical tracking of the target.
4LOCATION ON THE MAJOR ASSEMBLY TV camera is located on the YHB postAnddisplay units in the cabin.
5ROLE IT PLAYSTV optical system is intended for observations of remote objects and determination of their angular co-ordinates. There are two types of CC TV namely 9 Sha 33 A and 9 Sha 38-1 used in Pechora MGR. 9 Sha 38-1 TV optical tracking system is also used in OSA-AK & SPAGU weapon system of Army.
6LOAD IT TAKES 220 V±5%, 400Hz±2.5% ±27V±10% Power Consumption:- Max 450VA for 220V 400Hz mainsMax 200W for 27V mains
7THE EFFECTS OF ITS FAILURE During Anti Radiation Missile attack and EW environment the target can not be tracked without the help of TV system.
8NON-FEASIBLE/COMPLEX OR DIFFICULT ASPECTS THAT MAKE ITNON-FEASIBLE/COMPLEX OR DIFFICULTFOR INDIGENISATIONAdaptability to the existing Radar system and availability of a system which has night/ IR capability and limitations of tracking range.
10SL NoCHARACTERISTICSSPECIFICATIONSREMARKSa.Temperature range:--40 deg C to + 50 deg Cb.Relative humidity95 to 98 % at a temperature of +20 deg C ± 2 deg Cc.Field of vision angleNarrow - 1°27’ x 1°5’Area covered in space will be 1°27’x 1°5’Wide °50’ x 3°38’Area covered in space will be 4°50’ x 3°38’d.Vertical resolutionAt centre – 500 linesAt corner – 450 linesIt is a distinction between rasters in the test chart at centre which is 500 lines and at corner 450 lines to give a clear display
11SL NoCHARACTERISTICSSPECIFICATIONSREMARKSe.Horizontal resolutionAt centre – 600 linesAt corner – 500 linesIt is a distinction between rasters in the test chart at centre ,which is 600 lines and at corner 500 lines to give a clear displayf.Warm up time03 minutesIt is to provide sufficient warming up time after application of filament voltages to vidicon and CRT before the application of high voltages at their respective electrodes and thus increase the life of vidicon and CRT
12SL NoCHARACTERISTICSSPECIFICATIONSREMARKSg.Permissible continuous operation12 hoursParameters may get deviated if operated continuously beyond 12 hoursh.Magnification factorNarrow – F = 500mm – 14.75Wide F = 150mm – 4.4j.Maximum distance between the centre of cross line and test chart on monitor screen15 mm
13SL NoCHARACTERISTICSSPECIFICATIONSREMARKSk.Adjustment of TV camera with respect to the mounting flat(a)In horizontal direction - ± 2°(b)In vertical direction - ± 2°Mechanical adjustment for TV allignmentl.Supply voltage220 v ± 5% , 400 Hz ± 2.5 %± 27 V ± 10%m.Power consumptionMax 450 VA for 220 V 400HzMax 200 W for 27 V mains
14LIMITATIONSTV camera can not be operated during night due to its limitations which affects the operational capability of the squadron during night in case under ARM attack and EW environment.
15FEATURES TO BE IMPROVED Existing Range and field of vision ofangle needs to be improved.(b) Resolution needs to be improved.(c) Night operation facility needs tobe incorporated.(d) Operating temperature range, relative humidity and continuous operation limit should be at least as per existing system.
16FUTURE REQUIREMENTSIf night operation facility can be successfully incorporated, the complete Pechora & OSA-KA fleet will require the new system. Considering the number of FUs of Pechora and OSA-AK, the requirement may be 50 No.s of cameras.