User Manual

3B SCIENTIFIC

PHYSICS

Thermopile 8441301

Instruction sheet

07/06 SP

1 Inlet (funnel)

2 Shaft

3 Metal housing

4 Measurement output (4-mm safety connec-

tors)

1. Description

The thermopile is a highly sensitive apparatus used

for measuring radiation (e.g. heat radiation from

black bodies, reflection of long-wave heat radiation).

Integrated in a metal housing with a polished funnel,

the thermopile consists of a black surface of 15 mm

diameter to which 17 thermocouples are connected.

The thermocouples generate a thermoelectric poten-

tial U which is proportional to the intensity of the

incident heat radiation.

2. Technical data

Sensitivity: 0.14 μV/μW approx.

Setting time: 40 s for 95% of the meas-

ured value

Black surface: 15 mm ∅

Internal resistance: 1 Ω

Connections: Two 4-mm safety connec-

tors

Dimensions: 94 mm x 40 mm ∅

Shaft: 10 mm ∅

Weight: 200 g approx.

PAGE 1
3B SCIENTIFIC® PHYSICS Thermopile 8441301 Instruction sheet 07/06 SP 1 2 3 4 Inlet (funnel) Shaft Metal housing Measurement output (4-mm safety connectors) 1. Description 2. Technical data The thermopile is a highly sensitive apparatus used for measuring radiation (e.g. heat radiation from black bodies, reflection of long-wave heat radiation). Integrated in a metal housing with a polished funnel, the thermopile consists of a black surface of 15 mm diameter to which 17 thermocouples are connected.
PAGE 2
3. Operation To conduct the experiment, the following apparatus is additionally recommended: 1 Instrumentation amplifier for students’ experiments 8532161 1 x 4-mm high-frequency BNC cable U11257 1 Multimeter ESCOLA 10 8531160 1 Stand base 8611210 In order to prevent any drifting of the output voltage, the metal housing of the thermopile should be at room temperature. • After setting up the experiment, wait for a few minutes before taking readings.