3B SCIENTIFIC PHYSICS 1008523 Instruction Manual

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3B SCIENTIFIC ® PHYSICS
Instruction manual
02/24 NF/ALF/UD

1. Safety instructions

The Stefan-Boltzmann lamp conforms to the
safety stipulations for electrical measuring, con-
trol and laboratory instruments as specified in
DIN EN 61010 part 1. It is intended for use in
dry rooms suitable for the operation of electrical
equipment.
Safe operation of the equipment can be assured
as long as it is used as stipulated. However,
safety cannot be guaranteed if the equipment is
used incorrectly or handled without due care
and attention.
Stefan-Boltzmann Lamp 1008523
Caution: When in operation, the lamp can be-
come very hot. There is then a risk of burns if it
is touched. This can also result in greasy resi-
dues being burned onto the lamp.
Do not touch the lamp with your fingers.
Allow the lamp to cool after the experiment
has been completed.
Note:
Applying a voltage of more than 13 V to the ter-
minals is likely to destroy the filament.
Never apply a voltage higher than 13 V
across the two 4-mm sockets.
1

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Summary of Contents for 3B SCIENTIFIC PHYSICS 1008523

  • Page 1 3B SCIENTIFIC ® PHYSICS Stefan-Boltzmann Lamp 1008523 Instruction manual 02/24 NF/ALF/UD Caution: When in operation, the lamp can be- 1. Safety instructions come very hot. There is then a risk of burns if it The Stefan-Boltzmann lamp conforms to the is touched.
  • Page 2 5.1 Measurement of filament resistance at 2. Description room temperature The Stefan-Boltzmann lamp is a high tempera- ture source with a tungsten filament. It is de- signed to produce thermal radiation and for in- vestigating how such radiation depends on the temperature.
  • Page 3 5.2 Measurement of radiant intensity as a One possible alternative method for determin- function of the temperature of the fila- ing the temperature T of the filament is to calcu- ment late the quotients R/R and then use Fig. 2 or Tab.
  • Page 4   / n m 1000 1000 2000 3000 T / K Fig. 1: Electrical resistivity ρ of tungsten as a function of absolute temperature T (see Tab. 3). Curve based on measurements made by Zerda, T.W., Texas Christian University, 2001 1000 2000 3000...
  • Page 5  0,016 0,014 0,012 0,010 0,008 0,006 0,004 0,002 0,000 2,00E+009 4,00E+009 6,00E+009 8,00E+009 Fig. 3: Radiant intensity  as a function of temperature T 6. Changing bulbs 7. Disposal In order to change the bulb, the following equip-  Packaging should be ment is also required: disposed of at local re-...
  • Page 6 63.56 1.125 1.173 750 175.46 3.105 3.239 1170 300.69 5.322 5.550 1590 432.26 7.651 7.979 65.93 1.167 1.217 760 178.37 3.157 3.292 1180 303.75 5.376 5.607 1600 435.47 7.707 8.038 68.33 1.209 1.261 770 181.28 3.208 3.346 1190 306.81 5.430 5.663 1610 438.69 7.764 8.098 70.73 1.252 1.306 780 184.19 3.260 3.400 1200 309.87 5.484 5.720 1620 441.90 7.821 8.157 73.14 1.295 1.350 790 187.11 3.312 3.454 1210 312.94 5.539 5.777 1630 445.13 7.878 8.217 75.57 1.338 1.395 800 190.03 3.363 3.508 1220 316.02 5.593 5.833 1640 448.35 7.935 8.276...
  • Page 7                 ρ ρ ρ ρ     1970 556.78 9.854 10.278 2380 696.95 12.335 12.865 2790 843.18 14.923 15.564 3200 995.45 17.618 18.375 1980 560.13 9.914 10.339 2390 700.45 12.397 12.930 2800 846.82 14.988 15.631 3210 999.24 17.686 18.445 1990 563.48 9.973 10.401 2400 703.95 12.459 12.994 2810 850.46 15.052 15.699 3220 1003.0 17.753 18.515 2000 566.83 10.032 10.463 2410 707.45 12.521 13.059 2820 854.11 15.117 15.766 3230 1006.8 17.820 18.585...

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