Q2. Consider a thermistor device, where the following relationship between temperature T (°C) and resistance R...
QUESTION A thermistor is a device whose resistance varies with temperature. At 200 Cathermistor's resistance is 100 When connected to a 1.2 V battery, the current through the thermistor increases by 30 y as the temperature is increased to 30°C. What is the thermistor's resistance at the higher temperature? QUESTION 7 What is the magnitude of the current in the wire above the junction in amperes indicate the direction of current flow by making your answer positive to indicate the...
"consider an analog signal x Consider a thermistor in a voltage divider circuit. The reference resistance is Rf-3KS2 and the sensor is a thermistor with a nearly linear relationship of slope 100Ω"K at a nominal R0-3KΩ at TO-298 K nominal temperature. Analyze this transducer for a voltage source of V-1.5V froma battery. Use a temperature range of 20 to 30 °C Make sure you understand a. Plot of the response Vout as a function of temperature b. Full scale voltage...
(20) A platinum temperature sensor operates over a broad temperature. Its resistance is related to the temperature by R Ro Gt+ C2t2, where t is temperature in C and R is in Ω. Suppose one platinum temperature sensor has a resistance of 100 Ω at a reference temperature 0 °C; its resistance is measured as 139.4 Ω at a temperature 1. at a temperature of 200 °C. (a) Find the values of coefficients Ro. C and C2
14. A thermistors resistance varies with temperature as: R=R0eBT where R is in ohms Ω, T is in kelvins, and R0 and B are constants. If R=8991.9 Ω at the ice point and R=358 Ω at the steam point, Ts=373.15K. Determine B.
The plot below shows the ratio of the resistance at temperature T with respect to R at 0 degree C, R(T)/R(T=0 degree C) versus Temperature (degree C) The sensitivity of a resistivity sensor (a thermoscope) is defined as rate of change of the resistance with respect to the independent variable, in this case temperature. Which sensor is better suited for measuring temperature changes in the range -80 deg C to -50 deg C with better precision and why?
Where q1 and q2 is the amount of charge in Coulombs r is the distance in meters between the charges k is the Coulomb’s Law constant = 9×109 N•m2/C2 or 9,000,000,000 N•m2/C2 1. What is the force between two identical positive charges with a magnitude of 6 x 10-6 coulombs each and separated by 1m? (Related to chapter 23) Ohm's Law deals with the relationship between voltage (V) and current (I) and resistance (R). This relationship gives Ohm's Law. V...
(a) The resistance of a RTD, RT, at a given temperature T is given by the following equation: RT = R0 (1 + αT) where R0 is the resistance of the RTD at the reference temperature 0°C, α is the temperature coefficient at 0 °C. It is found that the resistance of the RTD are 130 Ω and 150 Ω at 10°C and at 50°C respectively. Calculate: (i) the temperature coefficient a, and (ii) the resistance of the RTD at 0°C, R0.(b) The RTD in part...
can someone help please Q2 (14%) Consider the circuit below where R1=25 Ω, R2=1,5 Ω, c,-18F, and C2=1/10F a) Find the transfer function between the input voltage and output voltage, that is, H(s) - Vo(s)/N(s) (b) Draw the bode plots for the transfer function. 0-2 0. Ri 2. m@ cT쿠 e(t) Ci c2
using matlab to find steps 1-10 Calibration and sensing Consider a thermistor temperature sensor (Fig. 1) with a pull-up resistor R1 connected to a 10-bit analog-to-digital (ADC) converter (a full scale No-210-1=1023 counts corresponding to the reference voltage Vref). The thermistor is used to measure temperature in the total input span from -10°C to 110°C. knots n(t VO R1 A/D GND Temperature Fig. 1 The output count of the thermistor measurements circuit can be modeled by a nonlinear function of...
2. Consider the Wheatstone bridge shown above in a platinum resistance thermometer between 0°C and 50°C. The resistance temperature rate is 8.2/°C. At 0°C, the nominal resistance is 500 12. This indicates that the three arms have a resistance of 500 12 each (R = R2 = R3 = 500 l) with an excitation voltage of 10 V. (a) Calculate the output voltage, V, at balance (0°C). (b) What is R4 at 25°C and 50°C? (c) What is the output...