Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley KPCI KPCI3100_PulseWdth

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.



Image preview - the first page of the document
KPCI3100_PulseWdth


>> Download KPCI3100_PulseWdth documenatation <<

Text preview - extract from the document
                           Measurement of Pulse Width

Programming a counter for gated event counting performs pulse width
measurement. The signal of interest is connected to the gate of the counter.
The number of accumulated counts, of a known timebase, is indicative of the
pulse width at the gate.

Often the internal timebase of a multifunction board is too fast to allow just a
single 16bit counter to be used for the gated event counting. For example, the
multifunction boards of the KPCI3100 driver (KPCI-3101, KPCI-3102, etc.) have
an internal timebase of 20MHz. A single 16bit counter will reach full scale in 3.27
msec.




            Gated Event Counting, counts pulses of the timebase but only when the
            signal of interest is at logic 1 state.




If the pulse of interest is longer than 3 msec in duration, then additional counters
must be used to perform the task. One approach is to use a counter in square
wave generation mode to provide a slower timebase signal to the gated event-
counting channel. If the two counter channels are immediately adjacent, the
square wave output can be routed to the input of the next channel by an internal
cascade (no jumper wire required).




            SqWave Generation provides slower timebase signal for the event counting
            channel to use.



◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo