DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
6B40.00 | Blackbodies | | |
6B40.10 | variac and light bulb | PIRA 200 | Vary the voltage to a 1 KW light bulb with a variac to show color change with temperature. |
6B40.10 | variac and light bulb | 6B40.10 | Vary the voltage to a 1 KW light bulb with a variac to show color change with temperature. |
6B40.10 | variac and light bulb | L-99 | Vary the voltage across a clear glass lamp from zero to 50% overvoltage. Also measure the intensity and plot against power. |
6B40.20 | hole in a box | PIRA 500 | |
6B40.20 | hole in a box | 6B40.20 | Holes in black boxes are blacker than the boxes. One box is painted white inside. |
6B40.20 | hole in a black box | Hf-2 | A box painted black has a hole in the side. |
6B40.20 | Bichsel boxes | Disc 24-25 | Two black boxes have blacker appearing holes in them. One box actually is painted white inside. |
6B40.25 | carbon block | PIRA 1000 | |
6B40.25 | carbon block | 6B40.25 | A carbon block with a hole bored in it is heated red hot with a torch. The hole glows brighter. |
6B40.25 | hole in a hot ball | 38-5.5 | A iron ball with a hole is heated red hot. |
6B40.26 | carbon rod | PIRA 1000 | |
6B40.26 | carbon rod | 6B40.26 | Bore a hole in an old carbon arc rod and heat electrically. The hole glows brighter. |
6B40.30 | radiation from a black body | Hf-3 | Heat red hot a carbon block the has both a drilled hole and a white porcelain plug. |
6B40.30 | carbon block and porcelain | 38-5.4 | Two holes are drilled in a carbon block, one is filled with a porcelain insulator, and the block is heated with a torch. |
6B40.30 | graphite and porcelain | H-158 | Graphite and porcelain heated red hot look the same. A pattern on a porcelain dish shows brighter when heated. |
6B40.35 | good absorbers - good radiators | L-97 | An electric element (E-171) with chalk marks or china with a pattern are heated until they glow. |
6B40.40 | X-Y spectrum recorder | PIRA 1000 | |
6B40.40 | X-Y spectrum recorder | 6B40.40 | The black body radiation curve is traced on a X-Y recorder from a thermopile. detector riding on the pen arm. |
6B40.41 | IR spectrum on galvanometer | PIRA 1000 | |
6B40.41 | plotting the spectrum | 38-5.11 | Measure the output of a thermopile. as it is moved across a spectrum. Monochrometer in appendix, p. 1362, Plots. |
6B40.41 | radiation intensity curve | L-98 | Explore the energy distribution of the continuous spectrum of a carbon arc with a sensitive thermopile. and galvanometer. |
6B40.41 | infrared in spectrum | Disc 23-22 | Hold a thermopile. connected to a galvanometer in different parts of a spectrum. |
6B40.42 | mapping the spectrum | L-112 | Use a thermopile. and galvanometer to show the infrared energy in the continuous spectrum. Insert a water cell. |
6B40.45 | IR camera and projected spectrum | PIRA 1000 | |
6B40.50 | IR camera and soldering iron | PIRA 1000 | |
6B40.55 | project sprectrum and change temperature | PIRA 1000 | |
6B40.55 | radiation vs. temperature | 38-5.13 | A more detailed look at varying the temperature of a black body and measuring with a thermopile. |
6B40.55 | radiation spectrum of a hot object | Disc 24-18 | Project the spectrum from a projector lamp and change the voltage. |
6B40.62 | Stefan-Boltzman equation | 38-5.12 | Measuring sigma by the relative method using a Hefner lamp as a standard radiator. |
6B40.70 | microwave blackbody | AJP 43(11),1004 | Microwave radiation emitted or absorbed by a cavity is detected and displayed on an oscilloscope. |