Lab 4_TemperatureCal

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2:45 ull 4G A moodle1.du.edu.om 1- A J-Type thermocouple referenced to 80°F has a measured output emf of 2.878 mV. What is the temperature of the measuring junction? 2- Assume that the measured temperature is 250° F, what should be the output voltage if the reference temperature is 90 °F. RK: if the temperature values are not in the table, you have to use interpolation. Response to question 2: The measured output voltage (mV) Select one: O a. 2.764 b. 4.769 c. 5.762 O d. 3.768

A. A customer asked you to explain your choice of a temperature sensor that you used for his PCB. Initially, there were two sensor options. To compare between them, you decided to test their accuracy and precision. Accuracy of a sensor is a measure of how near its reading is to the real value, the nearer the measured value to the real value the better. While precision is a measure of how widely spread the readings of a sensor are [relative to each other] when measuring the same variable, the narrower the spread the better. So, you tested the two sensors by measuring the same temperature, which was 100 C of boiling water, and you recorder the following 10 measurements of each sensor. Which Sensor has higher accuracy, and which one has higher precision. Sensor Sensor readings when measuring 100 C 99.65 100.05 103 102 99.3 s1 100.1 99.1 100.5 99 98.8 98.78 96.9 101.4 98.88 99 S2 99.12 98.9 99 98.69 99.2

QUESTION 2 Thermocouples are devices used to measure temperature of a given sample or the surrounding medium. These devices feature a "bead", which has a spherical shape, and produces voltage upon change in temperature. For an engineering application at a pharmaceutical company, thermocouple devices are being tested for their responsiveness, i.e. how fast it can detect temperature changes in the environment (surrounding air). The engineers at this company have specified design constraints for an ideal thermocouple: it must detect temperature changes no later than 1.5 minute, and the reported temperature value must be reasonably correct: at most %3 difference between measured and actual temperature values is allowed. Four thermocouples from different vendors are being tested. Relevant properties of these devices are listed below: Thermal conductivity Density 36 W/m*K 36 W/m*K 42 W/m*K 33 W/m*K Specific Heat 140 kJ/kg*K 120 kJ/kg*K 150 kJ/kg*K 160 kJ/kg*K Device Bead Diameter…

Record the dimensions of the known (calibration) block using the caliper and dial gauge on the table below. Indicate the units of each measurement. Calculate the average length of each side of the block. Dimension Caliper (Units) 0.995 1.455 0.985 Ruler(in) A: 0.9 B: 1.5 C: 0.9 A B C Dimension A B Instrument Use the average dimensions (see Problem 2a) of the known block to calibrate the LVDT at your workstation. Record the voltage on the table below: LVDT Offset: 0.556 (Do not include the offset value in your average dimensions) C Ave Dimension (Units) (Dial Gauge) 0.997 1.659 0.949 0.964 in 1.538 in 0.945 in oltage Average Dimension 1.244 volt 1.994 1.28 0.964 in 1.538 in 0.945 in

Truncation errors are increased as the round-off errors are decreased.Group of answer choices True False Say, you have a thermometer and you are checking the temperature of a body that has a temperature of 36o Using your thermometer five times, it gives you the following measurements: 29oC, 29.2oC, 29.3oC, 28.9oC, and 29.1oC. What can we conclude about the accuracy and the precision of the thermometer?Group of answer choices The thermometer is not accurate and not precise The thermometer is faulty. The thermometer is accurate and precise The thermometer is not accurate but precise. Say, you have a thermometer and you are checking the temperature of a body that has a temperature of 36o Using your thermometer five times, it gives you the following measurements: 36oC, 35.6oC, 36oC, 37oC, and 36.2oC. What can we conclude about the accuracy and the precision of the thermometer?Group of answer choices The thermometer is accurate and precise. The thermometer is accurate but not precise. The…

Task 3-a: If you have four instruments used to measure a temperature of 50.02 C inside the factory. However, the instruments gave different readings for different trials as follows: Instrument 1 20 30 40 50 60 70 80 51 49 Instrument 2 49 49 49 49 49 49 49 49 49 Instrument 3 48.01 48.03 49.02 49.01 50.00 48.02 47.09 47.05 47.80 Instrument 4 17.01 17.02 17.09 17.03 17.01 17.03 15.09 19.02 17.00 1. Define the resolution of an instrument. 2. Define the sensitivity of an instrument, then explain how the sensitivity of an instrument can be calculated. 3. Define the accuracy of an instrument system and explain using your own words how the accuracies of different instruments are compared. 4. Define the precision of an instrument system and explain using your own words how the precisions for different instruments are compared.

Chapter 3: 13. What type of geometric tolerance has no datum features? 14. A theoretically exact dimension is called a 15. The feature symbol specifies that a group of two or more interrupted features of size are to be considered one single feature of size. 16. For an individual regular feature of size, no element of the feature shall extend beyond the maximum material condition boundary (envelope) of perfect form. This statement is the essence of 17. What is the name of the symbol used to identify physical features of a part as a datum feature and must not be applied to centerlines, center planes, or axes? 18. The is the condition in which a feature of size contains the maximum amount of material within the stated limits of size. 19. The total positional tolerance equals the sum of the tolerance and the tolerance.

A chamber of unknown volume is filled with an unknown amount of ideal gas. A cylinder with an open bottom and calibrated volume is connected to the chamber and is closed with a movable piston. A gas pressure sensor is also mounted on the chamber as shown in the figure. The whole experimental setup is kept at a constant temperature of 300 K. Doris moves the piston from mark 0 to mark 200 mL in steps of 50 mL and records the corresponding pressure in the chamber (see the table below). She moves the piston very slowly and waits several minutes before recording the pressure values.   VCyl(mL) P(105N/m2)) 0 4.35 50 3.85 100 3.50 150 3.15 200 2.90   Determine the volume of the chamber using Doris's data in the table. (Note: This is a problem that requires linearization of data.)   Determine the number of moles of gas. (Note: This is a problem that requires linearization of data.)

Lab 2-Measurement Asynch - Tagged.pdf Page 4 of 7 ? Part I: Taking Measurements & Estimating Uncertainties for a single measurement www.stefanelli.eng.br The mass of the object is_ 0 i Parts on a tripie peam palance 0 0 10 20 30 1 100 2 3 40 200 4 +/- 50 60 70 5 300 7 400 80 Qv Search 8 90 9 500 100 9 10 g www.stefanelli.eng.br

ISOBARIC PROCESS / ISOMETRIC PROCESS   answer D please fast. Thank you!!!

e IY: %VY OLD ? د ميکانيك شهري 2021.pdf UNIVERSITY OF BASRAH - COLLEGE OF ENGINEERING DEPARTMENT OF CIVIL ENGINEERING Subject: Engineering Mechanics-Static Class: 1st year, 1st term Exam. : Semester Date: 16/3/2021 Examiner: Dr. Mazin, Dr. Aqeel, Dr.Ahid and Dr.Jaffar Time: 1.5Hours Q1] (10 Marks) A- In Fig.A , If the resultant force acting on the bracket is to be 642 N directed along the positive x axis, determine the magnitude of F. B- In Fig.B , Determine the magnitude of the resultant force acting on the screw eye and its direction measured clockwise from the x axis. C- In Fig.C , Resolve the 100N force into components along the u and v axes, and determine the magnitude of each of these components. D- In Fig.D, Determine the moment of the force about point O. 300 N 60N 25° 32 45° 60° 505 N 50° 40N Fig. A 50 N Fig. B 400 N 100N 28° 18 2.12 m Fig. C 2.12 m Fig.D Q2] (10 Marks) A- In Fig.A , Replace the loading system by an equivalent resultant force and specify where the resultant's…

Datum dimension the isometric view

b) A linear variable displacement transducer (LVDT) senses displacement and indicates a voltage output, which is linear to the input. Figure 1 shows an LVDT setup used for static calibration. It uses a micrometre to apply the known displacement and a voltmeter for the output. i) Suggest the independent, dependent and extraneous variables in this calibration. ii) Indicate the basic functional elements of the device in Figure 1 in the form of block diagram. 10 Micrometer Fixed mounts Connector Excitation voltage in Figure 1 Primary coil xx_w_ LVDT E Output voltage 10.135 Voltmeter Secondary coil Core

Newton's Law of cooling states that the rate at which heat is lost by a heated body is proportional to the difference in temperature between the body and the surrounding medium. Match the following statements/phrases with the corresponding item in the drop down box. Choices in the box 1. In accordance with the stated law obove, we have the equation? 2. If a thermometer is taken outdoors where the temperoture is 5 deg C, from a room in which the temperature is 20 deg C and the reading drops 10 deg C in one minute, the working equation is? 3. In the obove problem, separoting the variables and integrating will result to? 4. In the obove problem, how long, in minutes, after its removal from the room will the reading be 6 deg C? 5. In the obove problem, ofter 30 seconds, whot will be the thermometer reading? 5.2 dT(body temp)/dt = k(Temp of medium - 5) dr(body temp)/dt = k(Temp of body - Temp of medium) Temp of body = Cenkt +5 2.5 13.7 dr(body temp)/dt = k(Temp of medium - Temp of body)…

Q (2): A laboratory experiment has been executed to calculate the thermal conductivity of a specimen. The specimen is a bar with (Diameter= 0.04 m) and (length = 0.06 m). At steady state condition, the following data have been recorded: Voltage(V) Current(A) 8 0.8 T₁ (°C) 46.8 T₂ (°C) T3 (°C) 42.2 34.6 T. (°C) 31.4 By taking into consideration that the temperature changes linearly with position, refer to the figure aside, and calculate he thermal conductivity for the specimen (intermediate section). T₂ T₂ The face Told face T₂ T₂ 6 cm 4 cm 6 cm 4 cm 6 cm Hot section Int. section Cold section

2) A device used in a ground radar system has age to failure that is described approximately by a Weibull distribution with mean life 83 h, shape parameter 1.5, and location parameter zero. When it fails it takes on average 3.5 h to repair: a) Calculate the reliability over a 25 h period, and the 'steady state' availability of the device. b) Calculate the reliability over 25 h, and the ‘steady state' availability of a subsystem that consists of two of these devices in active parallel redundancy.

6. Determine the correct statement Mark only one oval. It is preferable to have a temperature sensor or pressure sensor with non-linear response to the measured property Density is an extensive property Sum of the macroscopic energies of the pure substances is called internal energy Work transfer out of the system is taken to be negative as convention None of the given 7. Tyre pressure is 2 bar of gage pressure and it has volume of 14 litres. Determine the density inside the tyre if the tyre is in thermal equilibrium with the environment at 25

a) Describe static sensitivity and time constant of instrument?b) A thermometer having a time constant of 1 min is initially at 50 oC. It is immersedin a bath maintained at 100 oC at time = 0. Express temperature in oC at time = 1.2min

Berserk - Chapter 2- Read Berserk compressor. reggienet.illinoisstate.edu https://reggienet.illinoisstate.edu/access/content/attachment/f6b18576-acf9-... Hint. Both power-sizing and indexing will be used. Ć + Question 3. The purchase price of a natural gas-fired commercial boiler (capacity X) was $181,000 eight years ago. Another boiler of the same basic design, except with the capacity 1.42X, is currently being considered for purchase. If it is purchased, some optional features presently costing $28,000 would be added for your application. If the cost index was 162 for this type of equipment when the capacity X boiler was purchased and is 221 now, and the applicable cost capacity factor is 0.8, what is your estimate of the purchase price for the new boiler? Hint: Use both indexing and power-sizing methods. 88 Illinois State University: TEC 330 001 FA2022 - Applied Economic Analysis For...

EXPERIMENT -1- TEMPERATURE MEASUREMENT AND CALIBRATION Discussion 4-State any possible error source in the experiment? 5-State any suggestions to improve the experiment?

4:07 3G l. Moodle A bbb2.du.edu.om EE ...Session (15-3- Said Grami O College of Engineering Vision for the Future Question 3 During a step function calibration, a first-order instrument is exposed to a step change of 200 units. 1- If after 1.5 s the instrument indicates 140 units, find the instrument time constant. 2- find the error in the indicated value after 2 s S. 3- Find the raise time at 90 % of the system. y(0)=0 units; K=1 unit/unit. Question 4 A first order instrument with a time constant of 2 seconds is to be used to measure a periodic input. If a dynamic error of ±2% can be tolerated, 1- determine the maximum frequency of periodic input that can be measured. 2- What is the associated time lag (in seconds) at that frequency? MECH374: Instrumentation and Measurement Said Grami Practice

The rate of infections with respect to time t (measured in days) within a population is seen to be rising exponentially according to the relation: I = e(k–1)t (Infections per day) This occurs over a period of 20 days from time t = [0, 20], where k = 1.4. a) What is the period of time t required for the initial infection rate I(t = 0) to double in number? State answer to within 3 decimal places.

E and 5 v X O file:///C:/Users/Hp/Desktop/mm/OUTCOME%20NO.2%20and%205%20with%20Problems.pdf + O Fit to page D Page view A Read aloud 1 Add notes Problems 1. A brass rod of diameter 25 mm and length 250 mm is subjected to a tensile load of 50 kN and the extension of the rod is equal to 0.3 mm. Find the Young's Modulus or Modulus of Elasticity. 99+ to search hp delete prt sc 14 DI backs & 7 8 24 4 P EJR -0 J K H D. F

THERMODYNAMICS 2 SUBJECT Pleaseee answer with complete handwritten solution, Schematic and TS diagram with correct dimension analysis. Thankssss! I'll give a thumbs up. ❤️

Discussion: 1) discuss the methods of temperature measurement. 2) What is the reference of thermometers calibration tool? 3) What is the meaning of the temperature? What its units? 4) What is the faster method of temperature measurement? 4) Do you have another method or appearance that may be used temperature measurement?

Q:02 Write Down the application of manufacturing processes in the field of mechanical Engineering?

The left side of this equation tells how much energy Q the cylinder gives to the water while it cools. The right side of this equation tells how much energy Q the water and aluminum cup absorb from the cylinder to warm up. Because it is the same energy, they are equal. What is known in this equation? Mcyl 411.7 g, malum 46.5 g, malum+water = 175 g Can you find: mwater =? g Twater = Talum = 20°C (water and cup of room temperature) 90°C, T; = 35°C (hot cylinder and cool "cylinder+cup+water" temperatures) Tcyl kCal Calum = 0.22, Cwater 1 (specific heat of water and aluminum, measured in units kg-°C What are we looking for is Ccul - How we find it? Plug all the numbers into the equation (1), Ccul will be one unknown which you can calculate from the equation. Important, convert all the masses from grams to kilograms! After you find Ccyl, compare it to known value for the copper 0.093(our cylinder is made out of copper). |Ceyl -0.093| % : · 100% 0.093

Read each statement carefully and answer by True or False (if False then, correct the statement). 1- Process control combines how physics, chemistry, and biology work in operating equipment and an understanding of dynamic systems. 2- When a second letter is used in instrumentation symbols, e.g., Pressure Indicator Controller (PIC), it defines the measured or initiating variables. 3- P&ID contains the sensor details such as physical principle and measurement range. 4- FRC 82516: Flow Recording Controller, area no 825, process unit 8, loop number 16. 5- P&ID excludes equipment identification.

b) Figure 1 shows the calibration data of a sensor. Determine the static sensitivity at the input of X= 0, X= 5 and X= 10. For which input values is the system more sensitive? Calibration Data 300 250 y = 0.875x1.055 200 150 100 50 20 40 60 80 100 120 Input value, cm Figure 1 c) Suppose you found a dial thermometer in a stockroom. Discuss several methods by which you might estimate random and systematic error in the thermometer? How would you estimate its uncertainty? Output value, V

3. a) With neat diagram, State the principle of RTD sensor b) A platinum resistance thermometer has a resistance of 100 ohm at 25°C. The Resistance temperature coefficient of platinum is 0.00392 ohm/ohm°C. (i) Find its resistance at 700C (ii) Let the thermometer has a resistance of 400 ohm, calculate the value of temperature.