Explain the significance of the following information given in the specification of the following transducer, Thermocouple Sensitivity: nickel chromium/nickel aluminum thermocouple: 0.039 mV/ºC when the cold junction is at 0 ºC.
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Explain the significance of the following information given in the specification of the following
transducer,
Thermocouple Sensitivity: nickel chromium/nickel aluminum thermocouple: 0.039 mV/ºC when the
cold junction is at 0 ºC.
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- Explain the significance of the following information given in the specification of the following transducer, Thermocouple Sensitivity: nickel chromium/nickel aluminum thermocouple: 0.039 mV/PC when the cold junction is at 0 °CWhat are the types of temperature sensors / devices used in industrial applications? (Give atleast 5 thermocouple sensors).A thermocouple has an output emf as shown in the following table when its hot (measuring) junction is at the temperatures shown. Determine the sensitivity of measurement for the thermocouple in mv/"C. Temperature (C) 3.5 13 4 12 Voltage imv) Sensitivity, S
- A special instrument that will accommodate type E thermocouples operating over the range of -125 to 1000°C is going to be designed. At some stage of design, the sensitivity at 0°C is needed. What is the sensitivity of the thermocouple at 0°C?A J-type thermocouple is used to measure the unknown steady-state temperature of a liquid. The sensor outputs a voltage of 2.532 mV. Using Equation 2 and Table 1.2, determine the unknown temperature. Show all calculations and assume the thermocouple is referenced to 0 °C. T = a₁ + a₂V + · ...+ a₂V² a a₁ 0.000 000 1.978 425 x 10-² -2.001 204 x 10¹7 1.036 969 x 10-¹1 -2.549 687 x 10-16 3.585 153 x 10-21 -5.344 285 x 10.26 5.099 890 x 10:³1 Table 1.2 -J-type thermocouple polynomial coefficients over the range of 0°C to 760°C ± 0.04°C 8₂ a3 a4 (2) as as a7Annealing is a critical process in semiconductor manufacturing where silicon wafers get rapidly heated to get temperatures using powerful infrared heaters. Annealing helps to reduce defects in materials after implantation or deposition processes. a) You have been asked to design a temperature sensor an annealer with a range of up to 1500°C.Select a suitable thermocouple from the table below and give an explanation for your choice. 80 E 70 60 K 50 40 -C 30 20 10 0. 500 1000 1500 2000 2500 Temperature ("C) b) To record the temperature, you use a microcontroller with an ADC. The ADC is referenced to a 2.048V reference voltage source. To make use of the entire range of the ADC, what gain does the amplifier require for your chosen Thermocouple? c) You want to read the temperature with a resolution of 0.5°C. What is the minimum number of bits that your ADC requires? d) The thermocouple has a time constant, t, of 300ms. If the annealer heats from room temperature (20°C) to 820°C. What…
- 3. Microfluidic channels will need to be fabricated on a key micro-scale sensor used by aerospace industries. Before running machining tests and analyzing machined quality, preliminary efforts are needed to evaluate selected materials and factors affecting machining process¹. Three material candidates have been selected, including 422SS (stainless steel), IN718 (nickel alloy), and Ti64 (titanium alloy) with their measured tensile properties and equation of true stress-true strain relationship used listed below. Tref25°C. Specifically, three factors will need to be evaluated, including different materials, temperature, and size effect. Please calculate true stress values for true strain ranging between 0-3 for each case listed below. Material A (MPa) & (S-¹) Tm (°C) 870 0.01 1520 422SS (Peyre et al., 2007) IN718 (Kobayashi et al., 2008) Ti64 (Umbrello, 2008) 980 1 1300 782.7 1E-5 1660 Material 422SS (CINDAS, 2011) IN718 (Davis, 1997) Ti64 (Fukuhara and Sanpei, 1993) 0 = X G (GPa) 1+ B…A K- type thermocouple is used to measure the temperature in a heating process. The length of the bare material is 100mm and thickness is 1.5mm. Find the time constant of the bare material. Турe of Thermo-Material couple K ( Q W/m- (kg/m³)| k) |(J/Kg- oc) J Iron- Constantan 46 8535 345 Kromel- Alumel 35 8738 380 T Copper- Constantan 160 8902 316 Cromel - Contantan 33 8825 336 IN Nicrocil- Nisil 34 8702 376 Pt(30%)Rhodium - B 19 15718 56 Pt(6%)Rhodium Platinum(13%)Rodium 55 16628 99 Platinum Platinum(10%)Rodium - Platinum IS 52.9 16745 99 Time constant of the bare material is, T=O Estimate the MRR (in cc/sec) of an alloy containing 18% cobalt, 62% nickel and 20% chromium during ECM with current of 500 ampere. The density of the alloy is 8.28 g/cc. The following data is available. Metal Gram atomic weight Velency Cobalt 58.93 Nickel 58.71 2 Chromium 51.99 Assume Faraday's constant is 96500 coulombs/ mole.
- (Q4) A thermopile 18 constructed with Iron-constantan materials. Four junctions are maintained at 300°C and for junctions are maintained at 40°C. The output of the thermopile is connected to a potentiometer. What voltage will be indicated if both terminals of the potentiometer are at the same temperature? What is the temperature indicated in this case?A thermometer with time constant 7 sec and showing a steady temperature of 27 "C issuddenly immersed in an oil bath at 160 °C. Find the,(a) Temperature reading on the thermometer after 7 sec(b) Time required for 90% response(c) Time required for temperature reading of 100 "CThe temperature of a fluid is measured by immersing a type K thermocouple in it. The reference junction of the thermocouple is maintained at 0 °C in an ice bath and an output e.m.f. of 9.435 mV is measured, provided sensitivity of K thermocouple is 41 ⴏV/ °C. What is the indicated fluid temperature in K ?