Appendix A INTRODUCTION The goal of this lab project was to calibrate temperature and pressure measurement systems. The systems we calibrated‚ were the Omega Model PX-236-060GV Piezoresistive Pressure Transducer‚ a thermocouple‚ and a thermistor. In order to obtain more accurate and precise readings‚ an AMTEK Model RK Deadweight Pressure Tester was utilized to calibrate an Omega Model PX236-06GV Piezoresistive Pressure Transducer. We had to add metal plates in increments
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Electric currents are measured in amperes (A)‚ hence the name. Neither type of basic dc PMMC meter movement will correctly indicate an alternating current. There are‚ however‚ four basic types of meter movement that will indicate ac values:- Thermocouple Hot wire Electrodynamometer Iron-vane Electrodynamic ammeters An electrodynamic meter uses an electromagnet instead of the permanent magnet. This instrument can respond to both alternating and direct current and also indicates true RMS for
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Experiment 5 Polytropic Expansion of Air Object The object of this experiment is to find the relation between pressure and volume for the expansion of air in a pressure vessel – this expansion is a thermodynamic process. Introduction The expansion or compression of a gas can be described by the polytropic relation ‚ where p is pressure‚ v is specific volume‚ c is a constant and the exponent n depends on the thermodynamic process. In our experiment compressed air in a steel
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and state examples of such properties. Recognise the need for and identify fixed points. Describe the structure and action of liquid-in-glass thermometers. Demonstrate understanding of sensitivity‚ range and linearity. Describe the structure of a thermocouple and show understanding of its use for measuring high temperatures and those that vary rapidly. 1. A clinical thermometer is designed to respond quickly to a change in temperature and to have a high sensitivity. Which design features should
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Experiment 8 - Free & Forced Convection Convection Heat Transfer.doc EXPERIMENT ON FREE AND FORCED CONVECTION HEAT TRANSFER 8.1 OBJECTIVES To study experimental data for heat transfer in order to evaluate the overall heat transfer coefficients and heat balances for the following cases of heat transfer in a .shell and tube heat exchanger. (a) Natural convection and (b) Forced convection. 8.2 THEORY A basic diagram of a shell and tube heat exchanger is shown in Figure 8.1. Here steam at a temperature
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Process Control for undereducated students Instructor: Dr. Karima Marogi Typical Questions & Answers Process Control Problems Problem (1) Solution a) Energy balance for the thermocouple‚ where m is mass of thermocouple C is heat capacity of thermocouple h is heat transfer coefficient A is surface area of thermocouple t is time in sec Substituting numerical values in (1) and noting that Taking Laplace transform‚ Problem (2) A thermometer having a time constant of 0.2 min is placed in
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1. Place the remaining salad into a 200 half hotel pan and spread evenly to cool CCP: to 41 or below; if not reached within 2 hours‚ then discard. Reheating N/A Sanitation Requirements: 1. Measure all temperatures with a thermocouple. 2. Wash your hands before and after handling any food or any activities that may contaminate your hands to prevent cross contamination. 3. Properly wash‚ rinse‚ and sanitize equipment or any utensils before and after using. 4. Return all
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coiled heater around it which travels the length and has proper insulation. There are seven thermocouples placed along the test section as shown in Fig 1. The exit section of the test pipe has a radial temperature and pressure measuring device as shown in figure 2. Pressures and temperatures are measured along the test section with Pitot tubes (pressure measurement) and thermocouples (temp measurement). The measured values are output on digital displays and the desired
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Sensors Content: 1. Introduction……………………………………..3 2. Sensor types………………………………….....4 3. Temperature sensors…………………………....6 4. Thermistors…………………………………..…6 5. Thermocouple…………………………………..7 6. Pressure sensors………………………………...8 7. Level sensors………………………………..…..9 8. Electromagnetic sensor……………………..…..9 9. Differential pressure sensors…………………..10 10. Classification of measurement errors………….11 11. List of used literature…………………………..12 2 Introduction A sensor (also called detector) is a converter
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gradually replacing the ordinary shaft kiln.The Hengrui rotary kiln wireless temperature measurement system‚ using the latest wireless communication technology‚ kiln thermocouple measured temperature data to the operating room display. The kiln temperature transmitter‚ battery-powered‚ can simultaneously acquire multiple thermocouple signal. Install it in a kiln‚ a rotation with the cylinder‚ take insulation measures‚ able to tolerate the tube radiation high temperature above 300 ℃‚ anti-rain‚ sunscreen
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