PASCO TD-8553 - Manuals

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Manual PASCO TD-8553

Summary

Page 2 - CAUTION

2 Thermal Radiation 012-04695D CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN The lightning flash with arrowhead,within an equilateral triangle, is intendedto alert the user of the presence ofuninsulated “dangerous voltage” withinthe product’s enclosure that may be ofsufficient magnitude to constitute a...

Page 3 - Table of Contents

012-04695D Thermal Radiation System i Table of Contents Section ...................................................................................................... Page Copyright and Warranty, Equipment Return .................................................. ii Introduction .......................

Page 4 - ii; Copyright Notice; The PASCO scientific Model TD 8553/; Limited Warranty; Copyright, Warranty, and Equipment Return; Equipment Return

Thermal Radiation System 012-04695D ii Copyright Notice The PASCO scientific Model TD 8553/ 8554A/8555 Thermal Radiation System manual is copyrighted and all rights reserved. However, permis-sion is granted to non-profit educational institutions forreproduction of any part of the manual providing th...

Page 5 - Radiation Sensor; Introduction to Thermal Radiation,; Specifications; Signal Output: Linear from 10; Figure 1 Radiation Sensor; Shutter

1 012-04695D Thermal Radiation System Radiation Sensor Introduction The PASCO Thermal Radiation System includes threeitems: the TD-8553 Radiation Sensor, the TD-8554ARadiation Cube (Leslie's Cube), and the TD-8555Stefan-Boltzmann Lamp. This manual containsoperating instructions for each of these ite...

Page 6 - Table 1

2 Thermal Radiation System 012-04695D Thermal Radiation Cube (Leslie’s Cube) The TD-8554A Radiation Cube (Figure 2) providesfour different radiating surfaces that can be heatedfrom room temperature to approximately 120 °C. Thecube is heated by a 100 watt light bulb. Just plug inthe power cord, flip ...

Page 7 - Stefan-Boltzmann Lamp; Accurately measure the resistance (R; IMPORTANT: The voltage into the lamp; Equipment Recommended; = Temperature coefficient of resistivity for the; Figure 3 Stefan-Boltzmann Lamp

3 012-04695D Thermal Radiation System TD-8555 STEFAN-BOLTZMAN LAMP CAUTION 13 VDC MAX LAMP VOLTAGE FOR MAXIMUM ACCURACY, MEASURE VOLTAGE AT BINDING POSTS USE NO.1196 BULB Stefan-Boltzmann Lamp For large temperature differences, therefore, deter-mine the temperature of the tungsten filament asfollows...

Page 8 - Table 2 Temperature and Resistivity for Tungsten

4 Thermal Radiation System 012-04695D 0 500 1000 1500 2000 2500 3000 3500 Table 2 Temperature and Resistivity for Tungsten Temperature versus Resistivity for Tungsten 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 R T R 300K 20 Temperature (Kelvin) Relative Resistivity 1.01.431.872.342.853.363.88...

Page 9 - Experiment 1: Introduction to Thermal Radiation; — Radiation Sensor, Thermal Radiation Cube; Radiation Rates from Different Surfaces; Connect the Ohmmeter and Millivoltmeter as shown in Figure 1.1.; Millivoltmeter; Figure 1.1 Equipment Setup

5 012-04695D Thermal Radiation System Experiment 1: Introduction to Thermal Radiation EQUIPMENT NEEDED: — Radiation Sensor, Thermal Radiation Cube — Window glass — Millivoltmeter — Ohmmeter. ä NOTES: ① If lab time is short, it's helpful to preheat the cube at a setting of 5.0 for 20 minutes beforeth...

Page 10 - Absorption and Transmission of Thermal Radiation; Data and Calculations

6 Thermal Radiation System 012-04695D Part 2 Use the Radiation Sensor to examine the relative magnitudes of the radiation emitted fromvarious objects around the room. On a separate sheet of paper, make a table summarizing yourobservations. Make measurements that will help you to answer the questions...

Page 11 - What do your results suggest about the Greenhouse Effect?

7 012-04695D Thermal Radiation System Questions (Part 1) ① List the surfaces of the Radiation Cube in order of the amount of radiation emitted. Is the orderindependent of temperature? ② It is a general rule that good absorbers of radiation are also good emitters. Are your measure-ments consistent wi...

Page 12 - Notes

Page 13 - Experiment 2: Inverse Square Law; Top View; Figure 2.1 Equipment Setup; Set up the equipment as shown in Figure 2.1.

9 012-04695D Thermal Radiation System Experiment 2: Inverse Square Law EQUIPMENT NEEDED: — Radiation Sensor— Stefan-Boltzmann Lamp, Millivoltmeter— Power Supply (12 VDC; 3 A), meter stick. Align axes of filament and Sensor Top View X Millivoltmeter Meter Stick Align zero-point of meter stickwith cen...

Page 14 - Rad; ä IMPORTANT: Do not let the voltage to the lamp exceed 13 V.; Radiation Level versus Distance; Ambient Radiation Level

10 Thermal Radiation System 012-04695D X Rad 1/X 2 Rad - Ambient (cm) (mV) (cm -2 ) (mV) 2.5 3.0 3.5 4.0 4.5 5.0 6.0 7.0 8.0 9.0 10.0 12.0 14.0 16.0 18.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 60.0 70.0 80.0 90.0 100.0 ä IMPORTANT: Do not let the voltage to the lamp exceed 13 V. ④ Adjust the distance be...

Page 15 - Calculations

11 012-04695D Thermal Radiation System Calculations ① For each value of X, calculate 1/X 2 . Enter your results in Table 2.2. ② Subtract the Average Ambient Radiation Level from each of your Rad measurements inTable 2.2. Enter your results in the table. ③ On a separate sheet of paper, make a graph o...

Page 17 - — Radiation Sensor; Introduction; Figure 3.1 Equipment Setup

13 012-04695D Thermal Radiation System Experiment 3: Stefan-Boltzmann Law (high temperature) EQUIPMENT NEEDED: — Radiation Sensor — Stefan-Boltzmann Lamp — Ohmmeter — Ammeter (0-3 A) — Voltmeter (0-12 V) — Millivoltmeter — Ohmmeter — Thermometer. Introduction The Stefan-Boltzmann Law relates R, the ...

Page 18 - Procedure; will burn out the filament.; BEFORE TURNING ON THE LAMP, measure T; , the room temperature in degrees; , the resistance of the filament of the Stefan-Boltzmann Lamp

14 Thermal Radiation System 012-04695D Procedure ä IMPORTANT: The voltage into the lamp should NEVER exceed 13 V. Higher voltages will burn out the filament. ① BEFORE TURNING ON THE LAMP, measure T ref , the room temperature in degrees Kelvin, (K=°C + 273) and R ref , the resistance of the filament ...

Page 19 - for each value of T and enter your results in the table.; Questions; (filament resistance at T; Data

15 012-04695D Thermal Radiation System Data and Calculations ① Calculate R, the resistance of the filament at each of the voltage settings used (R = V/I).Enter your results in Table 3.1. ② Use the procedure on pages 3 and 4 of this manual to determine T, the temperature of thelamp filament at each v...

Page 21 - Figure 4.1 Equipment Setup

17 012-04695D Thermal Radiation System Experiment 4: Stefan-Boltzmann Law (low temperature) 1 2 3 4 5 6 7 8 LOW HIGH CAUTION: HOT! CA UT IO N HO T! TH ER MIS TO R Mo del TD -85 54A (LE SL IE'S CU BE ) 100W BULB MAX. ON OFF Figure 4.1 Equipment Setup Millivoltmeter Ohmmeter EQUIPMENT NEEDED: — Radiat...

Page 23 - Teacher’s Guide; Experiment 1: Introduction to Thermal Radiation; Notes on Questions; Absorbtion and Transmission of Thermal Radiation; Experiment 2: Inverse Square Law

012-04695D Thermal Radiation System 19 Calculations ③ 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 0 5 10 15 20 25 30 0 10 20 30 40 50 60 Radiation (mV) Distance (cm) f(x) = 2.060229E+2 * (x^-1.815646E+0 )R^2 = 9.822989E-1 ③ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 5 10 15 20 25 30 0 0.02 0.0...

Page 24 - The graph of Radiation versus 1/x; Notes on Procedure

Thermal Radiation System 012-04695D 20 Notes on Questions ① The graph of Radiation versus 1/x 2 is more linear, but not over the entire range. There is a distinctfalloff in intensity at the nearer distances, due to thenon-point characteristics of the lamp. (A graph ofRadiation versus 1/x 2 using onl...

Page 27 - Technical Support; Contacting Technical Support; Title and Revision Date of software.; To Reach PASCO

012-04695D Thermal Radiation System 23 Technical Support Contacting Technical Support Before you call the PASCO Technical Support staff itwould be helpful to prepare the following information: • If your problem is computer/software related, note: Title and Revision Date of software. Type of Computer...