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Electronics/Cathode Ray Oscilloscope Interfacing with Printer.

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Electrocardiogram
Electrocardiogram  
CRO
CRO  
QUESTION: Dear ZZ

http://en.wikipedia.org/wiki/Oscilloscope
http://en.wikipedia.org/wiki/Electrocardiography
http://faraday.physics.utoronto.ca/IYearLab/EKG.pdf

1. Is it possible to interface Cathode Ray Oscilloscope (CRO) with a printer via USB, Serial port ?.

Interface cable between the USB/Serial port on the CRO Device with the Printer output device.

2. Could this be a useful function as certain waveform for electrical circuits can be Visualized, inspected as well as printed similar to a electrocardiogram ?.


3. http://www.nhlbi.nih.gov/health/health-topics/topics/ekg/printall-index.html

Is it possible in real time to take print out of a Waveform (Sine, Square, Triangular) seen in the Scope display for some electrical circuits directed to a printer output device interfaced to the Digital Cathode Ray Oscilloscope Device ?.

Is it possible to interface a printer with a CRO Device directly and take printouts of signal waveform in real time without using a computer viz desktop, server, laptop, smartphone ?.

In ECG Medical Device, the Heart beats/pulses recordings are directly printed on the Graph Paper. Is this possible in a Digital or a Analog CRO Device without interface of a Computer and which is similar to a ECG Device ?.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Here is one solution that you might take interest in (software):

http://www.printcapture.com/

Here is another solution (hardware):

http://www.eecs.umich.edu/emag/labmanual/Appendix_DO.pdf

There are other methods such as doing a screen image with screen grabber software, then print from the saved jpg file.

I think every hospital and medical clinic already have ways of storing images, depending on the testing being done and purpose.  Some are using poloroid photos to photograph off the screen.

But, I think to go directly from oscilloscope requires some modification of the hardware and software to produce the image and data in the format that will go to the printer.  Some conversion of the data is required if not already included in the oscilloscope model being used.

Hope that is clear.



---------- FOLLOW-UP ----------

QUESTION: Dear ZZ

Thank you.

http://www.nhlbi.nih.gov/health/health-topics/topics/ekg/printall-index.html

Is it possible in real time to take print out of a Waveform (Sine, Square, Triangular) seen in the Scope display for some electrical circuits directed to a printer output device interfaced to the Digital Cathode Ray Oscilloscope Device ?.

Is it possible to interface a printer with a CRO Device directly and take printouts of signal waveform in real time without using a computer viz desktop, server, laptop, smartphone ?.

In ECG Medical Device, the Heart beats/pulses recordings are directly printed on the Graph Paper. Is this possible in a Digital or a Analog CRO Device without interface of a Computer and which is similar to a ECG Device i.e. Printing facility is inbuilt within the Electrocardiograph.

Between the two oscilloscope modifications which system is more feasible to manufacture ?.

1. Inbuilt Printing Mechanism / Facility similar to a ECG/EKG device i.e. Graph Paper/s are inserted in the Oscilloscope device, A print soft button on the Oscilloscope will produce output on the Graph Paper/s from the Oscilloscope Device similar to a polaroid camera.

http://www.polaroid.com/‎
http://www.youtube.com/watch?v=g3ewEPgLksg

2. The Oscilloscope is externally interfaced with a Printer Device via USB, Serial Ports. A print soft button on the Oscilloscope will produce output from the printer interfaced with the Oscilloscope.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
your question about the integrated vs external printer is more of a marketing and application question.  For example, in the medical fields it is often required for the service provider to report the data collected to government agencies and insurance companies.  Also, the hospital may want to keep records in some central storage area. Therefore, the implementation is one of best fitting the application within the management of the service providers environment.  Don't you agree?

Since it is a marketing question, I will not dive into that area, this being an allexpert column devoted to electronics technology.

Appreciate your question.  

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Expertise

Electronics questions about AC, DC and digital theory.

Experience

Graduate electrical engineer with over 40 years in electronic design, manufacturing, project organization and patent review. Experience in fields of industrial and consumer electronics (audio, video, acoustics, etc.)

Organizations
IEEE (Institute of Electrical and Electronics Engineers); Senior Life member AES (Audio Engineering Society), Fellow Life member

Education/Credentials
BSEE University of North Dakota

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