Capacitance Transducer

Please see attachment for full question with diagram. Please help with parts a,b and c. Thanks. (a) Calculate the change in output code from the ADC for the transducer if the gap is changed from 500 mm to 600 mm. (b) If the transducer was removed from the circuit what would be the DC offset voltage measured at the output. (c) What is the bandwidth of the system response to changes in input gap?

battery charging

in order to charge a battery there must be a potential difference between the charger and the battery,i.e.a charging voltage.As a battery is being charged this potential difference reduces and since the charging current is related to this charging voltage the rate of charging also reduces. A battery is put on charge.The relationship between the charging current,i amperes,and the time,t hours passed,is given by this formula, i=3e to the power of -0.36t (cannot type in proper inequality symbols) Q1,construct a table showing the current for values of time between 0 and 9 hours at intervals of 1 hour.Hence draw a graph of i against t for 0 is smaller or eq... click for more

Torque sensor with strain gauges - calc output voltage

A steel tube, 24mm OD and 20mm ID is used to create a torque sensor. Four gauges are fitted to the tube in a bridge configuration and the bridge is supplied from a 10V source. Gauge Factor = 2.125 Shear modulus for steel = 82GN/m^2 Young modulus for steel = 210 GN/m^2 Max shear strain = 1000x10^-6 What is the output voltage from the bridge if the applied torque is 50Nm?

Voltage by volt-ohmmeter & EVM

A voltage of 500 V is impressed on a 150 ohm resistor. The impedance of the voltage source is 10 kΩ. Two meters are used to measure the voltage across the 150-kΩ resistor: a volt-ohmmeter with an internal impedance of 1000 Ω/V and an EVM with an impedance of 11 MΩ. Calculate the voltage indicated by each of these devices.

Lowpass Filter

Design a lowpass filter with a cutoff frequency of 500 Hz with a load resistance of 1000 ohms.