Measurement and control systems, Electrical Engineering

Electronic signals are used by almost all measurement and control systems to transfer information. Much of this data is in the form of analogue voltages, which are prone to the effects of noise and interference.

Interference is picked up from external sources present in the local environment. These sources are usually beyond the control of the systems engineer and so their effects must be moderated by careful earthing and shielding. Noise is generated within the circuits, and components themselves, and by good design may be reduced but not eliminated.

Answer the following questions.

1 Convert the following gains to dB.

a) power 3, 17, 854

b) voltage 5, 28, 36500

2 Convert the following gains to arithmetic ones

a. power 3 dB , 45 dB , 126 dB

b. voltage 2 dB , 35 dB , 126 dB

3 Express the following powers in dBm:

15 mW, 165mW, 10 µW

Posted Date: 2/18/2013 7:18:58 AM | Location : United States







Related Discussions:- Measurement and control systems, Assignment Help, Ask Question on Measurement and control systems, Get Answer, Expert's Help, Measurement and control systems Discussions

Write discussion on Measurement and control systems
Your posts are moderated
Related Questions
Q. Determine the voltage transfer function of the low pass filter circuit shown in Figure, and find the expression for ω 0 .

Q. Motoring mode of rotating machines? The motoring mode has electric power input and mechanical power output. The electromagnetic torque Te drives the machine against the load

Q. Interpretation and analysis using remote sensing? Interpretation and analysis using remote sensing Various characteristics of a river can be understood by studying its planf

Voltage regulator: A voltage regulator is an electrical regulator intended to automatically keep a constant voltage level. A voltage regulator is an instance of a negative fee

SOD Output Serial output data  single  bit can be sent  out through this pin using SIM  command  discussed in details in chapter8.

How is 8255 (Programmable Peripheral Interface) configured if its control register contains 9B h. Ans. Programmable Peripheral Interface Command Byte B (sets or

Question : a) Embedded Systems will be Hard Real-Time Systems, Soft Real-Time Systems and Hybrid Real-Time Systems. Briefly explain all three types of Real-Time Systems, using

Series-Parallel Magnetic Circuit: Figure shows an electromagnet made of cast steel contain a coil of 500 turns wound on the central limb. The cross-sectional area of the outer

Q. The external - characteristics data of two shunt generators in parallel are given as follows: Load Current, A: 0 5 10 15 20 25 30 Terminal voltage I, V: 270 263 254 240 22

explain how can you find hysteresis loss from hysteresis loop