Capacitive type pressure sensors are widely used to determine the pressure applied. It consists of two parallel plates with som gap between them. Capacitance is given by : where, A is the area of the plate, is the permittivity of the material between the plate and d is the distance between the plates.
Voltage developed is given by
When the plates is pressed the distance between the plate is changes ie. reduced which causes a voltage change.This change in voltage is measured. SO we can tell that applied pressure is directly proportional to output voltage which is directly proportional to distance between the plates.
Hypothesize and design a capacitive pressure sensor of parallel plate capacitor type. Your 4. design and...
i need help please A 1.24-pF, parallel-plate, air-filled capacitor with circular plates is to be used in a circuit in which it will be subjected to potentials of up to 2.00 times 10^2 V. The electric field between the plates is to be no greater than 6.00 x 10^4 N/C. As a budding electrical engineer for Live-Wire Electronics, your tasks are the following. Design the capacitor by finding what its physical dimensions and separation must be. radius 1.528 cm plate...
(b) (6 marks) A certain parallel-plate capacitor is filled with a dielectric for which K= 5.5. The area of each plate is 0.034 m², and the plates are separated by 2.0 mm. The capacitor will fail (short out and burn up) if the electric field between the plates exceeds 2.0 x 10% N/C. What is the maximum energy that can be stored in the capacitor? (c) (4 marks) Two resistors are wired to a battery. (i) In which arrangement, parallel...
I want to design a microchannel which incorporates a biological sensor. To work, the sensing element must be exposed to enough analyte to reach its detection threshold. This sensor has a detection threshold of 0.1 micrograms of cocaine. My sample contains cocaine at a concentration of 100 nM. Due to size constraints of the chip and sensor, the channel must be 1 mm long. If I want to determine if this sample has cocaine within 20 minutes, what is the...
Problem 3 Design a parallel plate capacitor of canaritanec and yollape rating of V = 10kV. The deign objective is to store maximum amount of electrical energy for a given cost of the dielectric material Material figure of merit Fau. Material ) Cost per unit mass CS/kg 3.80 2.40 7.20 3.00 Mass density p[kg/m 870 950 2,200 Relative dielectric constant (E) 2.2 2.5 2.1 9.8 Dielectric strength ERDIMV/m) 10 20 30 Transformer oil Polypropylene Teflon Alumina 3,950 a) Propose an...
pport 4 Your answer is partially correct. The figure shows a parallel-plate capacitor of plate area A = 10.6 cm² and plate separation 2d=6.75 mm. The left half of the gap is filled with material of dielectric constant Ky = 23.2; the top of the right half is filled with material of dielectric constant Ky = 41.8; the bottom of the right half is filled with material of dielectric constant K3 = 57.9. What is the capacitance? A/2 -A/2 KI...
Please explain your reasoning. 4. You have a square parallel plate capacitor with capacitance C. The plates are separated by a distance d and each square plate has a side length of L. Ifyou double the separation distance to 2d and half the side length to 0.5L, what is the new capacitance? A. 8C В. С C) 0.125C D. 4C E. 0.25C If the electric potential in space is given by the function V (x, y) = [2x3 + x2...
what is b plz . Consider a disconnected parallel plate capacitor with area Ao and width --4, 3do. There is a magnitude of charge density g, on each plate. For this problem you may assume the plates are large enough to neglect fringing fields. 3d How much energy is stored in the capacitor?2 z a. For the purpose of simplifying the math, assign this value 3E. A large conducting slab of area A and width do is now placed within...
Experiment 7 - The Resistor Capacitor Circuit Learning Objectives: Understand the short and long time behavior of circuits containing capacitors. Understand the and the mathematical relationshin between the current through the circuit as a function time, resistance, capacitance, and potential difference 1. Understanding the models for the behavior of a capacitor in a circuit A capacitor is a device that stores energy in a circuit as potential energy in an electric field. In the simple circuit drawn on the night,...
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2. A 4-lane expressway (onee direction) is carrying a total volume of 4500 veh/h when an incident occurs resulting in the closure of two lanes. If it takes 1.5 h to clear the obstruction, determine the following: Assuming that the capacity of the highway is 2200 veh/h/In i. The maximum queue length that will be formed ii. The total delay ii. The number of vehicles that will be affected by the incident iv. The average individual delay. 7:38 PM Task-1...