Name: Lab No and Title: Date and time of lab: MEEN 3210 MEASUREMENTS LABORATORY Spring 2023 Grading Sheet John Doe Laboratory 1 - Solar Lab Monday, Jan 24th at 9.10 AM Points Allocated Point Received Technical Content (40%) Introduction Theory (with references) Results 55 Collected Data Tables 5 Final Results (10) Tables Figures Discussions Appendix 550 10 Sample Calculations Writing, Format, and Style (10%) Spelling, Grammar, Word Usage Readability, font, format, white space Tables (title, column headings, units, etc.) Figures (captions, labels, units, etc.) Overall arrangement TOTAL Instructor's Comments: 5 22222 50 50 1 Date: To: From: 01/29/2019 Dr. Ajit Patki John Doe Subject: - Lab 1 Solar Lab Introduction: Theory: MEMORANDUM 2 Results: Table 1: (name for the table) Table 2: (if any) --Explanation/information about tables or upcoming figures 3 Figures or graphs (if any) Name Figure 1, Figure 2 etc · Explanation/information for figures and tables + More figures or graphs or tables (if any) Explanation for figures and tables 5/n TEMPERATURE MEASUREMENT LABORATORY Temperature, like pressure, is a fundamental property that is very common in many engineering applications. This lab introduces different types of temperature sensors and their calibration. Objectives The main objectives of the laboratory are: (1) To familiarize students with different temperature measurement devices such as thermocouples, RTDs, thermistors, thermometers, and infrared thermometers (2) (3) To calibrate an infrared thermometer using a portable calibrator To calibrate a type J thermocouple using a liquid bath and a dry block Experiments Experiment 1: Temperature measurement devices This experiment is to familiarize the students with different types of temperature measuring instruments, thermometers, thermocouples, RTD, thermistors, and a radiation pyrometer. Record the specifications of these temperature measuring instruments in a table. Experiment 2: Calibration of an Infrared Thermometer In this experiment, the students will calibrate three infrared thermometers using a 3-point calibrator. The calibrator is a blackbody surface with emissivity of 0.95. The calibrator has three set temperatures: 50, 100 and 150 °C. A calibration curve for each thermometer needs to be generated and plotted. TH CELARR Figure 1 Experiment Setup of Calibration of an Infrared Thermometer Table 1 Raw Data Sheet for Calibration of an Infrared Thermometer Set Temperature (°C) Infrared Thermometer (°C) OMEGA CEN-TECH DWYER 50 100 49.5 49.8 50 98.1 102.6 101 150 147 154.3 152 Possible discussions: Discuss the nature of the calibration curve (whether it is linear, parabola, exponential). Compare the accuracy of the three thermometers. What are the possible sources of errors associated with the experiment? Experiment 3: Calibration of a type J thermocouple In this experiment, the students will calibrate a type J thermocouple using two calibrators: a liquid bath and a dry block. THERMOCOUPLE CALIBRATION 0001 34 at SC Figure 1 Experimental Setup of Calibration of a J-type Thermocouple A liquid bath has a digital temperature controller that controls and maintains the temperature of the liquid inside the bath. Using the temperature of the liquid, a type-J thermocouple is calibrated in this experiment. The output of the thermocouple is read by a 5-digita digital multi-meter. In order to determine the temperature of the surroundings, a separate thermocouple is used. To calibrate the thermocouple, the room temperature must be taken into account as the output of the thermocouple is the voltage corresponding to the difference in temperature between the surroundings and the bath. Find the equivalent voltage for the room temperature from the thermocouple data for a J-type thermocouple. Add the voltage to the output of the thermocouple and fill the table below. Convert the voltage into temperature using the standard thermocouple table for a J-type thermocouple. Compare with the bath temperature and plot a calibration curve for the thermocouple. Discuss the nature of the calibration curve and errors associated with the thermocouple. Liquid Bath Thermocouple Temperature Output Room Temperature Table 3 Calibration of a J-type Thermocouple Using a Liquid Bath Total voltage of the Temperature given by the thermocouple Voltage equivalent of Room Temperature sensor (C) (mV) (C) (mV) (mV) (C) 30 0.395 22 1.22 1.51 29.6 40 0.944 22 1.22 2.06 40.13 50 1.46 22 1.22 2.68 51.79 60 1.99 22 1.22 3.11 59.93 The same procedure will be repeated for a dry block calibrator. Dry block calibrators are easier and faster to use so they are more popular in field calibration. Dry block calibrator is a block that can provide a set temperature quickly. Set the dry block calibrator to a desired temperature. Insert the thermocouple and read the output of the thermocouple. Using the table, convert the thermocouple reading in volts into temperature. Compare with the set temperature. Repeat the procedure for three to five temperatures and produce a calibration curve. Dry Block Table 4 Calibration of a J-type Thermocouple Using a Dry Block Set Temperature Total voltage of the sensor Temperature given by the thermocouple Thermocouple Output Room Temperature Voltage equivalent of Room Temperature (C) (mV) (C) (mV) (mV) (C) 50 1.49 22 1.22 2.61 50.5 100 4.2 22 1.22 5.32 100.97 200 9.75 22 1.22 10.87 201.68 250 12.54 22 1.22 13.66 250.8 Possible discussions: Compare the two calibration methods and their results. Discuss on their accuracy, fast response and other aspects. Table 1: Temperature Measurement Devices Device and Model Number Liquid Bath Thermocouple Calibrator -TE 10A and TE 10D Dri-block Thermocouple Calibrator Omega - CL355A Kerosene Thermometer Bimetal Thermometer Dwyer - PIR I Temperature Range (°C and "F) -20 to 95 °C -40 to 120 °C -5 to 400 °C (782 °F) -10 to 100 °C 0 to 250 °F -20 to 315 °C 0 to 600 °F Accuracy ±2°C ±1 °C ±0.6°C Omega Infrared Thermometer - OSXL650 -32 to 538 °C Omegascope Infrared Pyrometer - OS -25 to 100 °F -30 to 1370 °C -20 to 2500 °F 2000A Affordable 3-Point infrared calibrator 50, 100, 150 °C 122, 212, 302 °F ±2% ±4 °F ±2°C ±3 °C from -32 to 20 °C +2 °C from -20 to 100 °C ±2% from 100 to 538 °C ±1%> 75 °C +1.5% +2% 100 °C 100 °C ±1 °C -9135 Digisense (J-type)-8528-30 Digisense (K-type) - 8528-40 -190 to 1000 °C -310 to 1832 °F -250 to 1375 °C -418 to 2507 °C Thermistor Thermometer - 08403-30 to 50 °C (-22 to 122 °F) Series Digital Thermometer - HH504 Fluke Thermometer 50S and 50D 0 to 100 °C (32 to 199.9 °F) -200 to 800 °C -382 to 1472 °F J-type: -200 to 760 °C (-328 to 1400 °F) K-type: -200 to 1370 °C (- 328 to 2498 °F) ±0.25% ±1°C ±0.25% ±1 °C ±0.4 °C ±1 digit ±0.75 °F +1 digit ±0.05% rdg+0.2 °C ±0.05% rdg+0.4 °F J-type: [0.1% of reading + 0.8 °C (1.4 °F)] K-type: [0.1% of reading +0.7 °C (1.3 °F)]