DESCRIPTION:
The apparatus is designed to determine the Stefan Boltzmann constant. The apparatus consists of a hemisphere fixed to a Bakelite plate, the outer surface of which forms the jacket to heat it. Hot water to heat the hemisphere is obtained form a hot water tank, which is fixed above the hemisphere. The copper test disc is introduced at the center of hemisphere. The temperatures of hemisphere and test disc are measured with the help of temperature sensors.
The present set-up has a facility to interface the system with computer which enables to log the experimental data using computer. The educational software and data-logging package has been developed for unit. The software environment base is of Labview of NATIONAL INSTRUMENTS, USA. This software is compatible to interfacing unit designed by “Lab Smith”. This software package provides a comprehensive educational software environment within which the investigations can be performed. This software is capable to tabulate the sample readings according to the requirement of experiment under study and results obtained can be compared. The real time data acquisition can be done by interfacing the set-up with computer using software. Software allows the user to have control on data logging, printing the stored data, preparing spread sheets in Excel etc
EXPERIMENTATION:
- Determination of Stefan Boltzmann constant and study the effect of hemisphere temperature on it.
UTILITIES REQUIRED:
- Electricity Supply: 1 Phase, 220 V AC, 2 kW.
- Table for set-up support.
- Computer System: Pentium IV with DVD Drive, Windows 7, MS-Office pre-loaded. One USB slot required in PC for DATA ACQUISITION CARD.
TECHNICAL DETAILS:
| Hemisphere |
Dia.-200 mm (approx.) made of Copper |
| Jacket |
Dia. 250 mm (approx.) made of Stainless Steel |
| Test Disc Size |
20 mm Dia. x 1.5-mm thickness made of Copper |
| Water Tank |
Stainless steel 12 Ltrs. cap. |
| Heater |
Nichrome wire immersion heater. |
| Control panel comprises of |
| Digital Temp. Controller |
PID Controller, 0-199.9°C (for water tank) |
| Temperature Measurement |
By Temperature transmitter, Output 4-20 mA -2Nos. |
| Standard make On/Off switch, Mains Indicator etc. |
| An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will beprovided along with the Apparatus |
| The whole set-up is well designed and arranged on a rigid structure painted with industrial PU Paint. |
Ordering Details:
| Catalogue No |
Description |
JIHT-1072
|
COMPUTER CONTROLLED - STEFAN BOLTZMANN'S
APPARATUS(With Data Logging Facility)
|
