Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
Arthur Pini
User Rank
Author
Re: Grids
Arthur Pini   6/12/2014 4:56:54 PM
NO RATINGS
Hi bikeron,

Thanks for the great reference. It certainly shows the state of the art on the 1950's.

I agree that grids were associated with scopes from the very first commercial models.

The reference to the 1970's in the article was associated with the advent of cursors in scopes. 

 

Regards

Art

 

 

bikeron
User Rank
Author
Grids
bikeron   6/12/2014 2:33:49 PM
NO RATINGS
Grids were on scopes long before the 70's.

http://en.wikipedia.org/wiki/Tektronix_analog_oscilloscopes

 Here is from 1950's!

http://richardsears.wordpress.com/2012/01/07/near-the-beginning-of-an-era-the-tektronix-511a/

gah4
User Rank
Author
Re: Analog scope
gah4   6/5/2014 9:11:12 PM
NO RATINGS
In between the traditional analog scope and the digital version was the storage CRT. The elecron (charge) image would be stored on the screen, and made visible with a flood electron gun. 

But yes, with cheap digital storage, that is the best way to do it.

Arthur Pini
User Rank
Author
Re: Analog scope
Arthur Pini   6/4/2014 8:16:17 AM
NO RATINGS
Hi Martin,

You could align cursors with the waveform visually if the waveform were repetitive or you could use the persistence of the phosphor (P7 would remain visible for about 20 seconds in a dark room or with a hood).  What I intended to say was that cursors could not 'ride ' on the waveforms as they do in a digitical scope because the scope did not retain the waveform.  Having cursors move on the waveform avoids visual alignment errors that can happen with simple overlaid cursors.

Art 

MeasurementBlues
User Rank
Author
Analog scope
MeasurementBlues   6/3/2014 11:17:41 PM
NO RATINGS
Arthur,

Could you use persistence to display the waveforms longer, maybe even with whough time to place your cursors?

The first cursors were horizontal and vertical lines superimposed on the display that you could use to measure the amplitude and time differences of points on the waveform. Cursors couldn't do more on an analog oscilloscope since the waveforms were transient -- they only existed for the duration of the sweep.



Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...