digital oscilloscope - a device that allows you to monitor electronic signals.With it, scientists can make different measurement parameters.Thus vibrations can be monitored visually or directly recorded on a carrier.With a special converter additionally have the opportunity to explore the non-electrical processes.
When monitoring vibrations, scientists are looking at the amplitude of the signal, as well as its duration.Older oscilloscopes work by deflecting the light beam.This recording fluctuations had a special paper tape.In turn, a stylus were black.In modern models of the electron beam is focused on the screen and the result is a picture with the data.
Benefits oscilloscopes
The first is the possibility of freezing the image.This can be done at any time, which is very convenient.You also need to mention the high-precision measurement.This bandwidth is wide.Regardless of the speed of scanning the screen image is always clear and bright.Before launching the moment the signal is already displayed.
Identify transients during operation possible.Measurement of the signal is automatic.If necessary, a digital oscilloscope may be connected to a personal computer.To print the data it is possible to use the printer.Processed final signal not only mathematically, but statistically.In addition, there are means for self-test.
Homemade device
homemade digital oscilloscope can be done.The most important element of this device is a cathode ray tube.All the beam deflection, it fixes it.The voltage in the device reaches 300 V. Also, for the design of digital signal amplitude oscilloscope (shown schematically below) must have an amplifier.He also is able to control the rate of acceleration lyuminografa.
To eliminate violations of the multiplicity of locking the frequency is set.It blocks the beam during the return stroke.In turn, the sweep generator transmits data to the modulator.To correct the deviation of the signal has a phase shifter.Also equipped with a homemade digital oscilloscope control for stabilizing the oscillation.Diodes generally set tunnel.
How to choose a quality oscilloscope?
First, we should pay attention to the high sampling rate.This parameter must be within 400 - 600 mV / s.Additionally good oscilloscopes are capable of doing the equivalent sample.The screen resolution should be at least 480 x 234 pixels.Frequency welcomed only six-digit.Another device must support the SR-programming commands.From the oscilloscope functions check the data record as well as reproduction.Extras must be installed on the test limits.It should be a digital oscilloscope an average of 15 thousand. Rub.
Models Company "Siglent"
Oscilloscopes This brand has great potential.Average bandwidth they is 25 MHz.Models can be used in a variety of industries.They are characterized by low noise.The average sampling rate reaches 500 mV / s.This amount of memory is 32 thousand. Pixels.
Among other things, the device displays a comfortable 7 inches with a resolution of 480 by 234 pixels.Support CP programming commands available.It should be noted, and user-friendly interface.In general, the above-mentioned companies oscilloscopes are suitable for laboratory and research projects.
Oscilloscope "Siglent SDS 1022": performance and price
This digital storage oscilloscope resolution is 6 bits.The error is equal to 0.001%.Shown on all signals that are captured synchronization system.Frequencies are shown in the range of 10 to 100 Hz.In total, this model provides 3 modes: auto, normal and single.Synchronization can be done on the level.Scan speed varies in the region from 100 to 200 ms.Support CP commands available.You should also highlight the presence of recording and playback.This model will cost the customer 16 thousand. Rub.
What is the difference "Siglent SDS in 1052?"
This digital multimeter, oscilloscope from the previous model is more bandwidth.The index rising edge of 5.8 ns.In total, this model provides 2 channels.Additionally there is an input for external synchronization.Vertical sensitivity is quite high.Display resolution is in the area of 8 bits.
speed scanning of up to 100 ms.The maximum input voltage of 400 V. According to the parameters of the pulse synchronization can be carried out.The sample data in real time.The total amount of memory is 32 thousand. Pixels.As a result, the model was very simple and comfortable to use.It costs about 15 thousand. Rub.
Oscilloscopes brand "Rigol"
Oscilloscopes of this company with high productivity.The sensitivity can be very precisely adjusted.It should further be noted that false positives device virtually eliminated.This is largely due to the high quality filter.The display in the oscilloscope has a dual time base.To view the run schemes can be used.The use of oscilloscopes are fairly simple.To this end, manufacturers are equipped with the device an authorized signal strength.Typically, the channel provides 2 average rise time is 4 ns.Outside the vertical resolution is 8 bits.Input Connections DC and AC installed.
oscilloscope (digital) Rigol DS1102C is the most common.Run the device can be in front or tilt mode.The interface has a fairly intuitive.Total provides 2 channels and external trigger.The average rise time of 5 ns.Setting the vertical resolution is in an area of 8 bits.Frequency is set fairly accurate, and error he comes to a maximum of 0.001%.Manual fixing cursors provided.Also noteworthy feature tracking signal.In total there are 2 modes of formation (vector and spot).The total amount of memory is 32 thousand. Pixels.The price of this model is around 20 thousand. Rub.
Oscilloscope "Tektronix TDS 3064"
Most often this digital storage oscilloscope is used for setting up electronic lines.Among other things, he is able to cope with the checking function of the board.The maximum sampling rate is exactly 1 GB.In total there are 2 channels with a bandwidth of 100 MHz.The digital filter is pretty simple to configure.Additionally oscilloscope equipped with the registrar.In total, the model provides 20 automatic measurements.The function of the storage and playback of stock.
Record data can frame by frame.All the basic mathematical functions are installed.Among other things, you can highlight the presence of the inverter "Fourier".Run the device can be on the front or pulse length.Also, the device is able to operate with a delay start.Auto-calibration in this model is provided by the manufacturer.The hardware has a built-in frequency type.Overall, the model turned out pretty compact.Also of note is its pleasing design.It should be a digital oscilloscope (portable) "Tektronix TDS 3064" in specialized stores about 22 thousand. Rub.
Features "Tektronix MSO 4104"
maximum bandwidth in the model up to 100 MHz.The sampling frequency is at the start at 1 Hz.The average rise time is equal to 5 ns.From features can distinguish the presence of the input impedance.Horizontal scanning time averages 50 seconds.Total manufacturer provides 2 channels.Wherein the external trigger is attached.Total memory oscilloscope is 1 MB.
Vertical sensitivity is around 1-10 V Trigger Modes are provided for video, as well as the front.All the basic mathematical functions in a device can perform.In automatic measurement of the rise time is taken into account.Cursor data can be obtained automatically.Overall, the model turned out pretty compact.It weighs assembled only 2.4 kg.Cost digital storage oscilloscope (portable) "Tektronix MSO 4104" buyer in 18 thousand. Rub.
Oscilloscopes company "AKIP"
Digital oscilloscopes "AKIP" different user-friendly interface.Furthermore, they are multifunctional.Bandwidth is usually hovering around 60 MHz.The average sampling rate of 550 MB / s.The amount of memory provides a standard 32 thousand. Pixels.Resolution screens at 480 by 234 pixels.Hardware frequency counter installed on all six-digit model.Support CP commands available.
Among other things, it should be noted the function test.There it is on the outside of the "Passing" and "Fal".Scanning speed oscilloscopes have high enough.Among the shortcomings noted poor vertical resolution.There are also some problems with the measurement errors.This is largely due to the input impedance.The maximum voltage of 400 V. The oscilloscope Correction sampler can be carried out.Are oscilloscopes above brand, compared to products of other manufacturers, is fairly cheap.
model parameters "Owono DS 10"
Digital Oscilloscope Owon DS 10 has an average strip of 55 MHz bandwidth.Rise time is around 7 ns.All channels in this model has 2. Measurement error is 3%.The index screen resolution vertically is only 5 bits.This scanning speed is quite large.The input impedance of the oscilloscope in this guest.The maximum voltage of the device is 400V correction sampler can do.The main synchronization modes are automatic and unique.Signals system takes absolutely all kinds.
total amount of memory is 32 thousand. Point.Mode shape the present.Also note the signal reconstruction algorithm.The sample can be carried out directly or averaged.The color scheme in the model inverted.The operating temperature of the device varies between 10 and 40 degrees.In this humidity should be a maximum of 85%.Standard equipment includes the following: cable usb, digital oscilloscope, probe, power cord, software disk and instructions.Should this model is about 19 thousand. Rub.
Oscilloscope "Owono DS 20"
This digital oscilloscope can be used for various laboratory tests.It differs high sampling rate.Capture rate while also good.A total of two channels in the device.Set up a digital filter can be quite simple.Additionally, the device is installed recorder.With it, you can do a variety of vibration measurement.Automatic mode in the oscilloscope provided.It is possible to write data to the HR.
Another model is able to maintain and reproduce the waveform on a PC.If necessary, it can be printed.All mathematical functions are supported model.Converter "Fourier" is provided in this oscilloscope.From auto-calibration features can be identified.Calibration is done pretty simple and does not take much time.Hardware frequency set built-in.Average working frequency is around 1 Hz.
indicator of growth is at around 6 ns.The display in this model is set to 5.6 inches.Scan function in offline mode.Accuracy of time intervals is equal to 0.01%.Additionally installed external synchronization delay.The measurement of the duty cycle can be carried out.Overall, the model turned out pretty easy.It stands in the stores about 22 thousand. Rub.
Summary
most versatile oscilloscopes are the company "Siglent."The first thing to note their great performance.Models "Siglent SDS 1022" can boast high accuracy measurements.In addition, they have a reasonable price, and this is an important factor.In turn, the company Oscilloscope "AKIP" more suitable for young researchers.They possess acceptable properties, and the interface is simple and intuitive.
