The Nyquist Theorem says that the sampling frequency should be twice the bandwidth to avoid aliasing. Thus if the bandwidth of the system is bw then the sampling frequency f=2*bw.
For analyzing the feedback amplifier, it is necessary to go through the following steps. Step 1 : Identify topology ( Type of feedback) 1. To find the type of sampling network (i) By opening the output if feedback signal becomes zero, then it is called "voltages sampling" (ii) By shorting the output loop if feedback signal becomes zero, Then it is called "Current Sampling" 2. To find the type of mixing network (i) If the feedback signal is subtracted from the externally applied signal as a voltage in the input loop, it is called "Series Mixing" (ii) If the feedback signal is subtracted from the externally applied signal as a current in the input loop, it is called "Shunt Mixing" Thus by finding the type of sampling network and mixing network, type of feedback amplifier can be determined. for example, If amplifier users a voltages sampling and series mixing, then it is called a voltages series amplifier
What are the steps for waterfall model for Railway reservation system
1) Changing Engine Speed to Vary Output FrequencyPresent-day generators consist of an engine directly connected to an alternator to produce electricity. One of the most common ways of changing the output frequency of a generator is to change the rotation speed of the engine.The two factors are related as per the following formula -Generator Frequency (f) = Number of revolutions per minute of the engine (N) * Number of magnetic poles (P) / 120Conversely, P = 120*f/NAs per the above formulae, a 2-pole generator producing an output frequency of 60 Hz has an engine speed of 3,600 rpm. To change the output frequency to 60 Hz for the same generator configuration, the engine speed needs to be reduced to 3,000 rpm. Similarly, for a 4-pole generator, an engine speed of 1,800 rpm produces output of 60 Hz. Reducing the engine speed to 1,500 rpm yields an output of 50 Hz.In the case of small or residential generators, you can alter the engine rpm settings by making a few changes on the control panel of your unit. Follow the steps given below to alter your generator frequency from 60 Hz to 50 Hz:(a) Run your generator engine and tune the frequency meter on your control panel to read 50 Hz.(b) Check the AC voltmeter or potentiometer as the case may be and read the voltage output of the generator. The output voltage decreases as you reduce the frequency and may be lower than the desired value.(c) Adjust the AC voltmeter or potentiometer on your control panel till you obtain the desired output voltage at 50 Hz.(d) By making similar modifications on the control panel, you can increase the frequency from 50 Hz to 60 Hz.(e) If the control panel does not display the frequency, you will need to first connect a device that will measure the frequency while the generator is in operation and then change the engine rpm.Generator controller units undertake real-time monitoring and control of your unit. Built-in protective functions automatically shut down your generator in the case of excess engine rpm or very low output frequency. For addtional information on the functionality of a generator please read the following article, How Generators Work.
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A current transformer works on the same principle as that of a simple transformer however it steps down the high current into a low level so that it can be measured using an ammeter of a suitable range. In some current transformers extra cores are provided. This is done in order to prevent the faulty currents i.e. the over currents, earth faults, differential protections. The extra cores of a C.T. gets saturated as soon as the faulty currents starts flowing and thereby does not harm the main core of the transformer and the ammeter connected. The C.T. is always connected in the line carrying current. It first steps down the current to a measureable form and further gives this current to the ammeter.
what are the steps involved in the mark and re-capture method in population sampling
The steps involved in microwave installation typically include selecting a suitable location, ensuring proper ventilation, mounting the microwave securely, connecting it to a power source, and testing its functionality.
The steps involved in outdoor faucet installation include selecting a suitable location, shutting off the water supply, drilling a hole in the wall, attaching the faucet to the wall, connecting the water supply lines, and testing for leaks.
Selecting, Organizing and Interpreting.
When planning a bathroom tile renovation, key steps to consider include setting a budget, choosing the right tiles, measuring the space accurately, preparing the surface properly, selecting a suitable grout and adhesive, and hiring a professional if needed.
The steps involved in a successful doggie door installation include measuring the door size, selecting a suitable location, cutting a hole in the door, installing the door frame, securing the door flap, and testing the door to ensure it functions properly.
Sampling in Motif XS is hard. It will take a lot of steps and time.
The process and steps itself mainly depends on the workflow of the user interface provided by the broker. But some general steps include: selecting the stock to sell, selecting the exchange where to sell, selecting the number of shares to sell and finally choosing the price.
The key steps in submitting a paper to a journal include selecting a suitable journal, formatting the paper according to the journal's guidelines, writing a cover letter, preparing any supplementary materials, and submitting the paper through the journal's online submission system.
Some steps for forming an LLC include Selecting a Name, Selecting a Registering Agent and Determining ownership of the LLC. You may also want to order an LLC stamp for your company.
The key steps in reverse osmosis system installation include selecting a suitable location for the system, connecting the system to the water supply, installing the pre-filters and post-filters, connecting the system to a drain line, and testing the system for proper operation.
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