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Why the output of the envelope detector changed frequency when the audio frequency was varied?
answer for me please
Am detector wave form?
It is high frequency carrier signal and low frequency carrier signal in Am detector in the same way of wave form as a result of graph...
What is the frequency that a smoke detector alarm can be heard at?
Most smoke alarms are about 3000 Hz according to Wikipedia, but they do make them in different frequencies for the hearing impaired.
How do u use PLL as FM detector?
To use the PLL (Phase Lock Loop) as FM detector, you need to know the Free-running frequency.
How to trip a motion detector?
A: There are photo detector that sense changes in light as movement and there are frequency detectors that sense frequency shift as a person disturb the signal. Both are effective withing a certain range depending on environment and sensitivity. HOW TO TRIP IT IS UP TO YOU.
How are coins found using a metal detector?
Coins are found by the detector sending a pulse which picks up metal signals. Now there are two types a low frequency and a pulse indicator, the low frequency is used to pick up deeper objects
What is mien by carrier frequency?
High range of frequency that carries the message signals in transmission of data.after receiving the signals, the detector seperate the message and carrier .
How do you test uv flame detector?
To test a UV flame detector, you can use a UV flashlight to simulate the presence of a flame by shining the light near the detector. The detector should respond by triggering an alarm or other designated response. It is important to follow the manufacturer's guidelines for testing procedures and frequency.
What is the function of intermediate frequency transformer?
intermediate frequency transformer (ift) acts as a band selective n/w. the ift which is 455 khz is then given to IF amplifiers which is then given to detector.
How phase lock loop is used as a universal detector for Amplitude Modulation?
A phase-locked loop (PLL) can be used as a universal detector for Amplitude Modulation (AM) by utilizing its ability to track the phase and frequency of the incoming modulated signal. The PLL locks onto the carrier frequency of the AM signal, allowing it to demodulate the envelope variations caused by the modulation. By comparing the output of the PLL with the original carrier frequency, the modulation information can be extracted as the difference between the two signals. This makes the PLL an effective detector for demodulating AM signals across a wide range of frequencies and modulation depths.
Am demodulator diode detector circuit?
demodulator circuit is a circuit which is used for remove all high frequency components from modulated signal.
What does an EMF detector do and how does it work to measure electromagnetic fields?
An EMF detector is a device that measures electromagnetic fields. It works by detecting the presence of electromagnetic radiation in the surrounding area. The detector uses sensors to pick up on the strength and frequency of the electromagnetic fields, providing a reading that indicates the level of exposure to these fields.
