PASCO TD-8513 Heat Conduction Apparatus - Manual (Page 3)

Heat Conduction Apparatus
TD-8513
®
3
Introduction
The PASCO Heat Conduction Apparatus demonstrates the difference in the rate of heat conduction through bars
of different materials and cross-sectional areas. The apparatus has four metal bars: one aluminum, one stainless
steel, and two brass with different cross-sections. One end of each bar is heated or cooled by a Peltier device.
Each bar has two 10 k
Ω
thermistors embedded about 3 cm from each other. A cable is supplied to connect the
thermistors to a PASPORT Temperature Array (PS-2157) so data can be recorded from all eight sensors simulta-
neously. Foam insulators cover the bars to minimize heat exchange with the environment.
The embedded thermistors are labeled T1 through T8; these labels correspond to the Temperature Array channels
(1 through 8) on which data is collected. The lines printed on the board indicate the lateral positions of the ther-
mistors within the bars.
Temperature
Port
Power Input
Ports
Heat/Cool
Switch
Narrow Brass Bar
Stainless Steel Bar
Wide Brass Bar
Aluminum Bar
Peltier
Device
Heat
Sink
Thermistors Thermistors
Included Equipment Part Number
Heat Conduction Board TD-8513
Heat Sink 624-005
Thumbscrew 617-013
Foam Insulators (qty. 2) 648-09185
Temperature Array Cable 514-09162
Required Equipment Part Number
PASPORT Temperature Array 1
1
Temperature Array requires a PASPORT interface; see PASCO catalog or www.pasco.com
PS-2157
DC Power Supply PI-9877 2
2 Or similar power supply capable of supplying at least 5 volts and 1 amp.
4 mm Banana Patch Cords (qty. 2) SE-9750, SE-9751, or similar