A year ago, Research and Markets predicted the global digital oscilloscope market will experience market growth of nearly 20% through 2016. This growth represents more than just a transition from older technologies. More companies require sophisticated electronic test equipment to eliminate errors or bugs, and as digital oscilloscopes become more user friendly in terms of the ability to test and store electrical signals, more developers will harness their capabilities.
One of the more obvious trends in high-end digital oscilloscopes is the rise in frequency bandwidth handled by the instrument. Most of the major oscilloscope vendors carry instruments that offer 33 GHz or more of bandwidth. In 2012, the 60-GHz threshold was passed for commercial oscilloscopes, and in 2013 instruments exceeding 90 or 100 GHz have been demonstrated.
The maximum bandwidth, whether 20 MHz or 10 GHz,A helical bevel gearbox is a toothed gear in an angular design. describes the highest frequency sine wave that can be digitized with minimal attenuation.
Delivering signal integrity to high-frequency electronics, however, is a major design challenge for oscilloscope manufacturers. Flat frequency response from direct current is difficult at frequencies of 63 GHz or more.We have over a hundred of the knife sets as well as other brands of Kitchen Knife Sets. When designing its Infiniium 90000 oscilloscope series, Agilent Technologies, Billerica,High quality Isuzu Vacuum truck from Professional Isuzu Vacuum truck suppliers and manufacturers. Mass., had to develop a new set of technologies, called RealEdge, that preserved signal integrity to the oscilloscope’s graticule.
The X-Series, introduced in 2011, incorporated several advances that replaced the three key chips in the oscilloscopes front-end: the pre-amplifier, sampler and trigger chips. By elevating the capabilities of all three (32 GHz for the pre-amplifier, 20 GHz for the trigger and 80 GS/sec for the sampler), Agilent was able to preserve the input electronic waveform at higher frequencies. The key to these improvements was transistor speed, up to 200 GHz, made possible with the use of indium phosphide in the chips, packaged using a new technology.
These chips played a part in Agilent’s next advance, the 2013 R&D 100 Award-winning Q-Series oscilloscope. This 63-GHz update to the 90000 Infiniium line also incorporates RealEdge, which uses a hybrid filter bank to accurately capture rise times as fast as 5 psec and data rates up to 120 Gbit/sec. This permits applications in gigabit Ethernet development.
Bandwidth alone does not dictate the most appropriate digital oscilloscope for a given application. The buyer must make a host of considerations for specifications like sample rate, sampling modes, memory, dynamic range, resolution, and special capabilities, such as multi-instrument synchronization.
Sample rate is one of the most important, and plays a big part in determining how much of an oscilloscope’s bandwidth offers useful information.
This rate, which is clocked to digitize the incoming signal to either the digitizer or the ADC in a digital oscilloscope, determines how effectively an oscilloscope can accurately reproduce time-domain signals.