digital storage oscilloscope portable oscilloscope usb oscilloscope 100mhz
100mhz digital oscilloscope USB oscilloscope
1. 1GSa/s Sampling rate
2. 2 channels
3. 7” Widescreen LCD color display
4.USB host/device:Support USB printer and USB flash drive
1.Industrial power design,troubleshooting,installation and maintenance.
2.Electronic design,troubleshooting,installation and maintenance.
3.Circuit design and debug
4.Education lab and training institution
5.Repair and service
6.Production test and quality inspection
2.The oscilloscope has a totally new ultrathin appearance design, and is small in size and more portable.
3.7-inch widescreen color TFT LCD displays clear, crisp and more stable waveform display. 25% more viewing area with the menu switched off.
4.Storage/ Memory depth: single channel: 40Kpts; double channels: 20Kpts.
5.Various trigger functions: Edge, Pulse, Video, Slope and Alternation.
6.Unique digital filtering and waveform recording functions. Pass/Fail function.
7.Shortcut key "PRINT" to save screenshot to the attached USB disk.
8.Standard configuration interfaces: USB Host, USB Device, RS-232.
9.USB Host: support storage of USB flash disk and upgrading of USB flash disk system software.
10.USB Device: support PC connection for remote communication.
11.Power cord satisfying the standard of the user's country
12.Packing list :USB cable ,CD (containing PC software GAScope1.0 and user’s manual)
13. 32 kinds of automatic measurement and manual cursor tracking measurement functions.
14.Two groups of reference waveforms, 16 groups of common waveforms, 20 groups of internal storage/output; support waveform setting, external storage and output of CSV and bitmap file by USB flash disc (CSV and bitmaps cannot be output from USB flash disc).
15.Adjustable waveform brightness and screen grid brightness.
16.The pop-up menu display mode realizes more flexible and more natural for users’ operations.
17.Various kinds of language interface display.
18.On-line help system.
Input coupling: AC,DC,GND
Input impedance: 1M?±∥16pF±3pF
Maximum input voltage:
400V (DC+AC peak value, 1MΩ input impedance) (Only to 200MHz
800V (DC+AC peak value, 1MΩ input impedance)
Probe attenuation: 1X, 10X, 100X, 1000X
Packing & Delivery
1.the production packed by a platic bag first.
2.then will packed by the pearl cotton in front and back of the goods.
3.then packaged by a standard of the export carton inner box.
4.then packaged by a standard of the expor carton big box.
1.small order we usually have them in stock, and shipping by express.
2.20ft container ,it's need about 20working days,and shipping by sea.
3.OEM orders,we will discuss the time with you .
How to choose oscilloscope?
You should know what you plan to use the oscilloscope to observe. What is the special feature of the signal you want to capture? Does your signal have complex characteristics? Is your signal repeat signal or single signal? What is the bandwidth, or rise time, of the signal transition you want to measure? What signal characteristics do you intend to use to trigger short pulses, pulse widths, narrow pulses, etc.? How many signals are you going to display at the same time? Analog or digital?
In all, the traditional view thinks that the analog oscilloscope has the familiar panel control, the price is low, therefore always thinks that the analog oscilloscope "USES conveniently". However, with the increasing speed and price of A/D converter year by year, as well as the increasing measuring capacity and virtually unlimited functions of digital oscilloscope, digital oscilloscope has become the leader.
How is the bandwidth?
Bandwidth is generally defined as the frequency when the amplitude of sinusoidal input signal attenuates to -3db, that is, 70.7%. Bandwidth determines the basic measuring ability of oscilloscope to signal. With the increase of the signal frequency, the oscilloscope's ability to display the signal accurately will decline, if there is not enough bandwidth, the oscilloscope will not be able to distinguish the high-frequency change. The amplitude will be distorted, the edges will disappear, and the details will be lost. Without sufficient bandwidth, all the properties of the signal obtained, such as ringing and singing, are meaningless.
A rule of thumb for determining the bandwidth effectiveness of the oscilloscope you need is the "5x rule"; Multiply the highest frequency component of the signal you want to measure by 5. This will give you an accuracy of more than 2% in your measurements
In some applications, you do not know the bandwidth of the signal you are interested in, but you know the fastest rise time, most digital oscilloscopes use the following formula to calculate the associated bandwidth and the rise time of the instrument: bandwidth = 0.35 ÷ the fastest rise time of the signal.
There are too kinds of bandwidths: repeat (or equivalent time) bandwidth and real time (or single time ) bandwidth. Repeat bandwidth is only applicable for repeat signals to display comes from sampling during multiple signal acquisition. Real-time bandwidth is the highest frequency that can be captured in a single sample of oscilloscope, and the requirements are quite demanding when the captured events do not often occur. Real-time bandwidth is associated with sampling rates.
Since wider bandwidth tends to mean higher prices, evaluate the frequency components of the signals you normally look at against your budget.
How is the sampling rate?
Defined as sampling times per second (Sa/s), the frequency of signal sampling by exponential oscilloscope. The higher the sampling rate of the oscilloscope, the higher the resolution and clarity of the waveform displayed, and the lower the probability of important information and events being lost.
The minimum sampling rate becomes important if the slow signal over a long time range is observed. In order to maintain a fixed waveform number in the displayed waveform record, the horizontal control button needs to be adjusted, and the displayed sampling rate will also change with the adjustment of the horizontal control button.
How to calculate sampling rate? Measuring method depends on the waveform measured and the signal reconstruction method adopted by oscilloscope.
To reproduce the signal accurately and avoid confusion, the Nyquist theorem states that the sampling rate of the signal must be no less than twice its highest frequency component. However, the premise of this theorem is based on infinitely long and continuous signals. Since no oscilloscope can provide a record length of infinite time and, by definition, low-frequency interference is discontinuous, sampling rates of twice the highest frequency components are usually insufficient.
In fact, the accurate reproduction of signal depends on its sampling rate and the interpolation method used in the gap of signal sampling points. Some oscilloscope will provide following choice to operator: sinusoidal interpolation method for measuring sinusoidal signal, and linear interpolation method for measuring rectangular wave, pulse and other signal types.
There is a useful rule of thumb for comparing sample rates and signal bandwidths: if the oscilloscope you are looking at has interpolation (filtered to regenerate between sampling points), the ratio (sampling rate/signal bandwidth) should be at least 4∶1. Without sine interpolation, the ratio of 10∶1 should be adopted.
How fast does the screen refresh?
All oscilloscopes flash. That is to say, the oscilloscope captures the signal at a certain number of times per second, and the measurement between these measuring points is no longer carried out. This is the waveform capture rate, also known as screen refresh rate, expressed as the number of waves per second (WFMS /s). Sampling rate represents the frequency of input signal sampled by oscilloscope in a waveform or period.Waveform acquisition rate refers to the oscilloscope acquisition waveform speed. Waveform acquisition rate depends on the type and performance level of oscilloscope, and has a large range of changes. The oscilloscope with high wave acquisition rate will provide more important signal characteristics and greatly increase the probability of the oscilloscope to quickly capture instantaneous abnormal conditions, such as jitter, short pulse, low frequency interference and instantaneous error.
Digital storage oscilloscope (DSO) can capture 10 to 5,000 waveforms per second using a serial processing structure. DPO digital fluorescence oscilloscope USES parallel processing structure, can provide higher waveform capture rate, some up to millions of waves per second, greatly improve the possibility of intermittent capture and difficult to capture events, and allow you to find the signal problems faster.
What is the storage depth?
Storage depth is a measure of how many sampling points an oscilloscope can store. If you need to capture a pulse string continuously, you need the oscilloscope to have enough memory to capture the entire event. The required storage depth, also known as record length, can be calculated by dividing the length of time to be captured by the sampling speed required to accurately reproduce the signal.
Capturing the effective trigger of the signal in the right position can usually reduce the storage capacity of the oscilloscope.
Storage depth is closely related to sampling speed. The depth of storage you need depends on the total time span to be measured and the required time resolution.
Modern oscilloscopes allow users to select record lengths to optimize the details of some operations.Analysis of a very stable sinusoidal signal requires only 500 points of record length;But to parse a complex stream of digital data, you need a million points or more of record length.
What kind of trigger do you need?
The trigger of the oscilloscope can synchronize the horizontal scanning of the signal at the right position, which determines whether the signal characteristic is clear or not. Trigger control buttons stabilize repeated waveforms and capture single waveforms.
Most users of universal oscilloscopes only use edge triggering, and you may find it useful to have other triggering capabilities in some applications. Especially for the fault search of new design products.Advanced triggering allows the event of interest to be isolated, making the most efficient use of sampling speed and storage depth.
Today there are many oscilloscopes with advanced triggering capabilities: you can trigger based on pulses defined by amplitude (such as short pulses), time-limited pulses (pulse width, narrow pulse, conversion rate, build/hold time), and pulses (logical trigger) described by logical state or graph.The combination of extended and regular triggering functions also helps to display video and other hard-to-catch signals, so advanced triggering capabilities provide a great deal of flexibility in setting up the test process and greatly simplify the job.
How many channels do you need?
The number of channels you need depends on your application. For the general economic fault - finding applications, the need is a dual - channel oscilloscope. However, if you want to observe the interrelationship of several analog signals, you will need a 4-channel oscilloscope. Many engineers working in analog and digital systems are also considering 4-channel oscilloscopes.A newer option, called a mixed-signal oscilloscope, combines the logic analyzer's channel counting and triggering capabilities with the oscilloscope's higher resolution into a single instrument with a time-dependent display.
The development of oscilloscope probe
In the past 50 years, the interface design of various oscilloscope probes has been evolving continuously to meet the requirements of increased instrument bandwidth speed and measurement performance. In the earliest days, banana plugs and UHF connectors were commonly used. In the 1960s, the common BNC connector became the common probe interface type because BNC was smaller and more frequent. Currently, the BNC probe interface is still used for test and measurement instrument design, and the current higher quality BNC connector provides a maximum available bandwidth function of nearly 4GHz.
Later, some manufacturers put forward the common workarounds, BNC type probe interface design in the use of the BNC connector at the same time, additional provides a simulation code detection scale coefficients of stitching, as part of the mechanical and electrical interface design, which makes the oscilloscope is compatible with automatic detection and change the oscilloscope display of vertical attenuation range.
Requirements for oscilloscope current probe
Wide frequency range: from dc to tens or even hundreds of megabytes.
The range is large: from milliampere to kiloampere.
Small size: with the improvement of integration and the increase of signal frequency, the external size of components is getting smaller and shorter and pins are getting shorter and shorter.
Easy operation and high accuracy.