Oscilloscope Definition and 144 Threads

Hello! My collegue and I are having hard time to understand what is happening. Basically we have a tapping device that work with Arduino and a pneumatic pump. The pump allows the tapping of two surfaces which perform triboelectric effect. We are connecting to those a logic analyzer (Seleae), to...

I have a Tektronix 2465A oscilloscope. There is on the rear panel a ch.2 output. How can I change that to a vertical output as was the case for the older 500 series scopes. The mode control determined what output was present.

Hello! I am building a bow-tie cavity and I am trying to lock it using the PDH method. From reading some stuff online I understand the concept but the figures they show in the tutorials online are different from what I see on my oscilloscope. I am attaching below two pictures (the second one is...

I want to synchronize the RF power supply (having jitter or delay over temp/time) to RF reference frequency with a digital delay generator, and I thought of two ways. 1) phase locked loop: it is commonly used for synchronizing the high-frequency signal, but as I know it is proper for a periodic...

I am having some issues when viewing tracings of my induction heater tank. It has to do with the grounding. First, I will explain the situation; then, I will ask the question. The images show the inverter voltage in yellow which results in a current in light blue. The dark blue is the 90 deg...

Hello! I have this photodiode which I connect to an oscilloscope using a normal BNC cable to an oscilloscope, terminated with a 50 Ohm resistor. I measure the output from an optical cavity (which is basically laser light), which in my case looks like a flat signal close to zero, and regular...

Question: Why does the oscilloscope double almost the exact value of rotational speed measured by Tachometer? Rotational speed from Tachometer = 1930 [RPM] Frequency of 1 period = 64.3 [Hz] which means 3857.91 [RPM] The output waveform of hall-effect sensor is attached. Can you have any...

Hi experts, I am a student of electronics engineering and a new member. I have few questions related to Oscilloscope, function generator and Digital Multimeter. 1. what does the DC offset on the function generator do? 2. What is the frequency range and type of signals available? 3. What is the...

I have an Textronics oscilloscope with 500 MHz sampling rate and using an 50 ohm cable for the measurement. I can’t find the measurement uncertainty in the manual or the calibration sheet. In the calibration sheet it says an ‘uncertainty’ for the used channel in divisions, for example 1m up to...

I built a guitar (fuzz) effect, and analysed the sine wave from a tone generator through an oscilloscope. Wondering what the wave means and how it got to be the way it is. I will attach a picture of the oscilloscope screen + the circuit I used for the Fuzz effect. My question is what the cause...

I started by working out the time constant of the Capacitor = RC = 300 * 1.5*10^-9 = 0.45 *10^-6 and the time period (t) of the square wave signal produced by the signal generator : 1/(1*10^6 )= 10^-6 Then I drawed the graph as follows...

I know the following equations for if the damping ratio is less than 1: $$\sigma = -\zeta \omega_n$$ $$\omega = \sqrt{(1 - \zeta ^2)\omega^2_n}$$ I am given the following circuit that I built on LTSpice: Measuring the voltage between node 2 and ground (blue), and the voltage Vc4(t) (green) I...

Hi, I am unsure of what uncertainty to get, so here is my full question: I used the CRO for an experiment, and since what I need is frequency, I read the period, so for the uncertainty of the period, it is the smallest division divided by two. So if my uncertainty for period is 0.001s, then what...

can some one help me understand this problem conceptually I'm doubting the explanation given below (superposition happens on when they are on the same axis right but this problem two frequencies are on orthogonal basis). My thought was since frequency on Y is twice as many as on X. so i picked E

Hello, This is my first post in this domain and I am fairly novice in this subject, so please bear with me. I have a GDS-20174A Digital Oscilloscope. I am trying to measure the delay between two BNC cables using a Square Pulse of 2V with an offset of 1 V using the oscilloscope. I am using...

can anyone explain why the voltage reading is negative for the resistor over a time period , yet the capacitor reading always stays positive ? In AC generation the voltages goes from negative to positive, how exactly does this affect the circuit components voltages? I am not sure how AC affects...

I have collected a large number of oscilloscope traces (these relate to the modes of a laser cavity). Four sets are shown here: There are two ways for finding the average spacing ##\Delta t## between the adjacent dips: 1. Measure all the individual ##\Delta t##s from each measurement...

Hello, I have a very specific problem and didn't find any way to solve it. My signal is very slow changing at 5V +-100mV When I want to display this signal on my RIGOL Oscilloscope, the problem is, that with AC-mode I don't see those slow changes and in DC-mode the offset range is limited to...

So, I'm a student of electrical engineering and I want to buy an oscilloscope to learn more about stuff and have in mind some projects to do. At the moment I'm working on project "supervision of pellet furnace" with ESP8266 and automatic refilling. For that project I build my own schematic and...

Does anyone know if there is a textbook on the design and construction of high frequency oscilloscopes (up to 10 GHz)? I am guessing they would be some form of ADC circuit with perhaps a mixer and could use a lap top as the "DSP" and display. How would such an O-scope be calibrated/tuned...

There has been some discussion on another thread about possible problems with mains spikes and lighting LEDs. I have decided that I could use an entry level scope to capture and measure any that are around on my supply. My regular analogue scope is hopeless for this purpose. I am sure that there...

Hi guys, I am working on a project that involves measuring the phase angle between two sinusoidal voltages. The circuit under examination is an RL type (the resistor was in series with the inductor), where the phase of voltage across the inductor is measured relative to the voltage input of the...

I just started learning about oscilloscopes and I am confused on how to calculate the uncertainty. The uncertainty measurement on the device says '1/2 the smallest division'. I am unsure which 'division' this refers to since there are horizontal scales and vertical scales. In my experiment I...

I'm new to electronics, and using my new equiptment I would like to generate a sine signal on my function generator and display it on my oscilloscope. Equipment: * The scope is Rigol DS1054Z * Function generator is a $60 digital chinese. My problem is: When I plug connect the function...

Hi, I am a new student and trying to to measure the power and voltage output from B200 SDR device (https://www.ettus.com/content/files/b200-b210_spec_sheet.pdf) using oscilloscope (TDS3000 Series: https://www.atecorp.com/ATECorp/media/pdfs/data-sheets/Tektronix-TDS3000_Series_Manual.pdf)...

I have 2 rubidium clocks which both are generating 10MHz sine wave. Some reason my system is giving bad data. So, I am deciding to inspect every single part of the system. I am trying to check the rubidium clock and make sure it have to be in nanosecond time variation, because: t=1/f = 1/10e6 =...

Homework Statement In this part of the lab you tracked a single peak as you moved a microphone in order to get a good value of the speed of sound. This question will lead you through a similar process with just two measurements. (The lab set up: speaker emitting the signal faced one microphone...

Homework Statement Hello! The problem is the one I attached. Homework EquationsThe Attempt at a Solution They say the answer is A, but I am not sure why. From what I remember from lab class, when you put 2 signals on x and y-axis you get usually a closed loop, like D or E. I think D happens...

Homework Statement In a AC to DC rectifier the DC signal was Vdc= (6.3+0.4)V and AC signal was Vac=(0.25+0.04)mV. What is the error on the quality factor of the rectifier? Homework Equations σQ=√((σr^2)/(Vdc^2 )+(Vr^2 σdc^2)/(Vdc^4 )) The Attempt at a Solution I know this is the correct...

I have a technical question, for research purposes. I have LED that we probe in AC mode. To measure the applied voltage in AC and the light-response in AC is no problem. However I would like to measure the current going through the device as well and I would like to link it to an oscilloscope...

Hi, I am frequently concerned with audio "noise" coming from a guitar amp. I can inject a 500hz signal for example and obviously see that signal at the output transformer. There are other frequencies also being produced by the amp at the same time which are typically hard to see or not...

We have a waveform that is composed of several waves, maybe something like this: If we Fourier transform the graph we get something like this: My question is, does the value of the largest column represent the peak to peak voltage of the waveform pictured above?

Today in my electronics class, we were introduced to the amp op concept. After going through some fundamentals, the teacher challanged us to find v0 of a simple circuit with a battery and two resistances of 1M ohm each(v0 is in between these resistances). Afterwards he asked us if this same...

I am measuring a communications bus with an oscilloscope at various points along the line. I understand that there will be reflections at each stub as well as at the ends of the bus if the impedance doesn't match. I also understand that these reflected signals will add/subtract with the...

Dear All, how to know whether electronic components such as spectroscopy amplifier (canberra 1413 or 2010), single channel analyzer (from ortec) and NaI Scintillator counter with its basis are working good. Are there any testing methods using a oscilloscope. I have a Mössbauer radioactive...

Homework Statement V1 = 10cos(10^4t) V2 = 5cos(10^4t + pi/3) Time Base setting = 0.1msec/div By how many divisions will these two traces differ? Homework Equations W = 2pi/T[/B] The Attempt at a Solution W = 2pi/T T = 2pi/W W = 10^4 T = 0.628 milliseconds 0.628milliseconds/(0.1msec/div) =...

Hello, I recently did the Franck-Hertz experiment (a short summary of the experiment can be found here http://inpp.ohiou.edu/~roche/3701_web/man-fh-a3b.pdf). I am currently doing data analysis and am having a hard time determining the accuracy of the oscilloscope, the Tektronix TDS2004B. I am...

Hi everyone. I am tasked with amplifying an input voltage of around 1nA at anywhere between 10,000kHz to 1MHz to a sufficient amount. We've been using op-amps in multiple stages in series to amplify the signal. At our disposal we have a function generator, oscilloscope, breadboard and...

Hello everyone, In my lab class we've been given task of using op-amps to amplify a current of 1nA and frequency of order of madnitude 1MHz to a discernable level. We've been given breadboards, a selection of different op amps, resistors, an oscilloscope etc to achieve this task. We've made...

Hello! I am trying an interferometry experiment using the Michelson Morley experiment. I managed to obtain the interference pattern on a screen, but I want to use an photodetector and I am not sure what should I obtain. As I know, the oscilloscope shows the intensity of the light, so if I modify...

So I was given an oscilloscope, which I thought would be quite useful for my electronics dabbling. It does appear, however to be ancient and have a few bits missing, as one would expect when something is free. I managed to be lucky enough to guess the power requirements to be 6VDC, based on the...

Hi all, I'm looking for an oscilloscope for hobby/diagnostic use. I'd like it to be useful for automotive and mains/power supply type stuff as well as battery-powered electronics. What would you recommend? It would have to be a used one as budget is tight. I've seen some simple 'build your...

Hi I'm a beginner on using an oscilloscope and I'm sorry if my question may be repeated in other posts. I was working on a circuit with the following materials: (1) an Al plate (5mm thick) (2) a disk-shaped piezo transducer with special electrodes (product...

I recently purchased my first oscilloscope, a Rigol 1054Z. I have been using it for a few days with one of ARRL's educational boards and always feel awkward when I simply power it off after use. It didn't come with much of a manual and I was just wondering if there is a better way to power it...

So I have a vintage analog TEKTRONIX 2465 Oscilloscope that I bought used on eBay for a bargain of $300 last year. When I got it worked okayyyyy except when there was no input the CRT would display Channel 1 and 2 lines slanted and pressing the BEAM FIND button didn't help(nor adjusting the...

I have been fighting it for days and no matter what I try I can't make the waves bigger. The signal I'm putting in is a 1 volt peak to peak wave and if I adjust the voltage on the scale to 1 volt I can't see the wave and if it set it to 10mv I can see it but barley. I have tested the voltage...

Hi all, I've been using a HV step up transformer (10kV-20W on secondary) lately and I'm wanting to look at the HV pulses on an oscilloscope. The coil is isolated from ground. I know connecting a probe directly to it is dangerous and would ruin my scope. I want to use a differential probe but...

Hello Forum, I know a little bit about how the oscilloscope works: an electron beam hits the scope screen and traces the waveform. Once the beam reaches the right side of the screen it zaps back to start tracing again. Is it possible that while the beam returns to the lefthand side of the...

Homework Statement "An instrument (oscilloscope) is prepared to measure a sinusoidal periodic wave, compute the measurement error if the same instrument is used to measure the wave indicated in figure 1 (The wave is much more like a sawtooth wave, sorry for bad drawing)Homework Equations...

What methods could I utilise to find the individual values of the components - resistor, inductor and capacitor - of a series RLC circuit using an oscilloscope, signal generator and 10 ohm resistor. Where each component can be isolated in order to find the voltage etc. I've already found the...