Need some terms definitions

[popat_panjaru]

hi to all.

I requiered the definations for the following items....

1. Input Sensitivity.
2. DC Gain Accuracy
3. Input Coupling
4. Offset Accuracy
5. what is Offset?..
6. Vertical Resolution
7. Trigger Jitter..also what is Jitter Noise Floor
8. What is FFT & TFT?..what is the base of each...i mean which one is Time domain
and which one is frequency domain?..
9. how Data Acquisition system works?..can any one tells me the block diagram?
10. AUX Trigger...

Plz apply "what" at the starting of each question?..

Popatlal

 

[cydi]

Definations

All these have diff meaning for diff situations.. wats ure ref situation, ADC?

 

[electronics_kumar]

Definations

offset voltage or current is the value given to maintain the output as zero if input is zero

 

[mkhan]

Re: Definations

FFT is Fast Fourier Transform and its the transformation of signals in frequency domain, I dont know about TFT.

 

[Pavel_S]

Re: Definations

1. Input Sensitivity.

Value in volts needed to deflect beam by one graduation (1 cm).

2. DC Gain Accuracy

Accuracy of input amplifier setting for dc voltage.

3. Input Coupling

DC coupling - input amplifier amplifies input signal with it dc bias
AC coupling - capacitor cut off dc bias of input signal before input to Y amplifier

4. Offset Accuracy

5. what is Offset?..

Value of DC voltage added to amplified input signal to shift waveform on the
screen up or down (for example to balance DC bias of input signal)

6. Vertical Resolution

Gives information about least value possible to read out on vertical scale.
(to how many different levels is diveded full vertical SCREEN voltage range)
1V/cm, screen is 8 cm height, 8 bits

8cm*1V/cm/2^8=31.25 mV

7. Trigger Jitter..also what is Jitter Noise Floor

Uncertainity of triggering for the same input signal and the same settings due to internal trigger circuit noise.

8. What is FFT & TFT?..what is the base of each...i mean which one is Time domain
and which one is frequency domain?..

FFT - Fast Fourier Transform - Fast computation algorithm of Discrete Fourier Transform (DFT) - related to periodic signals and periodic spectrum

DTFT - Discrete Time Fourier Transform - aperiodic discrete signals and continuous frequency spectrum

https://www.dspguide.com/ch10/6.htm

10. AUX Trigger...

Auxilary trigger ???

(Sorry for language mistakes, English is not my native language