3b-scientific Bolometer User Manual download pdf

3B SCIENTIFIC

PHYSICS

Bolometer U8461300

Instruction sheet

07/08 ALF

1 Hole for thermometer

2 Cardboard tube

3 End-plate

1. Description

A bolometer is used for measuring the heat radiation

from the sun.

The instrument consists of a solid aluminium

cylinder with a blackened end surface inside a

cardboard tube, which is blackened on its inner

surface and has two plastic end-plates. A hole is

provided in the tube and the cylinder for inserting a

thermometer.

The blackened surface of the aluminium cylinder

prevents reflection of the incoming heat radiation,

and a blackened cardboard tube screens the cylinder

from ambient background radiation.

2. Technical data

Aluminium cylinder: ≈ 30 mm × 40 mm Ø

Cardboard tube: ≈ 195 mm × 50 mm Ø

Weight: 350 g approx.

3. Sample experiments

To carry out the experiments the following

equipment is required in addition:

1 Thermometer +10 ... +30 °C U8451700

1 Tripod stand, 150 mm U13270

1 Stand rod, 470 mm U15002

1 Universal jaw clamp U13261

1 Universal clamp U13255

1 Digital stopwatch U11902

1 Set of Vernier callipers, 150 mm U10071

1 Electronic scale, 2500 g U42058

1 Pipette dropper

3.1 Measuring the quantity of heat transferred to

an aluminium body by solar radiation

Heat from the sun is transmitted to the earth by

thermal radiation. The intensity of the thermal

radiation depends on the position of the sun above

the horizon and the clarity of the atmosphere. The

earth’s atmosphere “swallows up” a fraction of the

solar radiation. That fraction may be smaller

according to how clear the weather is and how high

the sun is in the sky.

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3B SCIENTIFIC 1
PHYSICS 1

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Bolometer U8461300 Instruction sheet 07/08 ALF 1 Hole for thermometer 2 Cardboard tube 3 End-plate 1. Descrip

Page 2

Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com 3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany

3b-scientific Bolometer User Manual

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3b-scientific Bolometer User Manual

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