In which one of the following smoke meter the sample of emission gas is passed through a tube, which has a light source at one end photocells at the other end
fuEu eas ls fdl /q¡kvk ekfi= eas mRltZu xSl ds uewus dks ,d ,slh V~;wc eas ls xqtkjk tkrk gS] ftlds ,d fljs ij izdk'k L=ksr o nwljs fljs ij QksVks lsy yxs gksrs gS
Bosch smoke meter
Hartidge smoke meter
Van brand smoke meter
Gas Analyser
Hartidge smoke meter
Measurement of smoke:
The main purpose of smoke measurement is to quantify the black smoke from diesel engine.
1. Hartridge smoke meter.
2. Bosch smoke meter.
Hartridge smoke meter:
The arrangement is shown in the figure. This consists of two optically identical tubes, one containing clean air and other the moving sample of the smoke.
The clean air tube is taken as reference. A light source and photo-electric cell mounted facing each other on swinging arms.
Movement of the change-over knob alters their position from 0-100, indicating the light absorbed by the smoke in hartridge units.
A small fan blows air into the clean air-tube. The air flow the open ends of the tube across the surfaces of the light source and the photo-electric cell, to provide cooling and to protect them against sooting by the smoke.
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's