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Rms Noise Measurement

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13 Threads found on edaboard.com: Rms Noise Measurement
most spectrum analyzers simply measure the power spectral density of the phase noise, and integrated it to show rms jitter. On the average, it is an accurate calculation.
Hi, I am trying to measure AC rms voltage using PIC microcontroller. I have attached the circuit for measurement. I am connecting a 3V step down transformer out to the input of the circuit.The feedback capacitor has been added to reduce the noise, but I am getting noise if I add this. This is getting smooth after the (...)
Unless there you don't mind measuring Signal + noise, the appropriate method is to convert Peak to rms assuming Sine wave and rms=Peak/Root(2) or 0.707 x Vp as Audioguru stated. If you want to eliminate noise, then a tracking filter is needed.
Just quoting model numbers without even a manufacturers name is of no use to most members of this forum. What you need is a CW signal source with a calibrated attenuator, a receiver with an IF output and a rms power meter that is accurate at IF and an input termination resistor. So what have you not got? Frank
If the input signal aren't guaranteed to have a clean sine waveform (they hardly will), a true rms measurement is required. It can be only performed by summing the squares. For the rms measurement, filtering of the input signals doesn't make much lsense, unless you have high frequency noise that you want (...)
Hello all, I have some questions about noise measurement on op amp... consider that I'm in the broadband zone, so a white noise only is present, I measure the max voltage value on the scope. How can I deduce the rms value ? then if I could have the rms value, I can deduce the noise of my (...)
Hello everyone, Do you have any idea in noise definition and measurement for CMOS image sensor? As far as I know, to find the rms noise of the image sensor, we will get the N sample values of output signal of a pixel at, then calculate the standard derivation of these samples => rms (...)
Hello, We would like to measure the rms output noise voltage, SNR and Minimum detectable signal (MDS) of a transimpedance amplifier (TIA). Do you know the methods, instruments, and measurement setup, please help me. Thanks you and have nice day.
1. Power Meter (peak, average, rms, etc), Two RF Signal Generators with multiple modulations, Spectrum Analyzer, Load Pull Tuners, Power Supply with accurate current and voltage readings. 2. Network Analyzer, Two RF signal Generators, Spectrum Analyzer with NF measurement option. 3. Spectrum Analyzer with Phase noise (...)
Yeah, I grabbed some of those LT1088's before they went into extinsion. In my understanding, for EMG you need very low bandwidth, sub kHz measurement. I would use amplifers shown in those app notes and use decent rms meter. LT1088 will not do anything for sensitivity anyway. You probably came across this ,
Hi, I am designing a transmitter and I want to control jitter measurement by measuring noise on the input signal. Can I request anyone to please help and give me a code, as to how can I measure noise in the input signal for each clock period as I want to get Average voltage and rms voltage for each clock period and then (...)
Hi, I'm desigining a Transimpedance amplifier with the bandpass response, which means the differential output of the TIA is feedback to the input of the TIA for DC cancellation purpose. My question is, how do I calculate input referred rms noise of the TIA in Cadence. I understand that for the forward TIA design (LPF response), i can run the noi
hi all, i'm choosing a POWER SUPPLY equipment for test and measurement on ANALOG CHIP. please give me some advise on the SPEC, thx in advance. 1) what is the MAX "ripple & noise" acceptable for analog chip ? 5mV rms & 3mA rms ? 10mV ptp ? or ? 2) line regulation constant voltage & current ? 0.01% 3mV & 0.2% 2mA ? or (...)