RHK Technology R9 - Transient Recorder and Transient Recorder FFT; Figure K.35. Transient Recorder Output

Reference Guide
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K.6. Transient Recorder and Transient Recorder FFT
The R9 controller has two high speed inputs that sample at 100 MHz each. This data is digitized by the
A/D conversion and is sent to both the FPGA and to the Transient Recorder buffer. The Transient
Recorder buffer can hold 512*1024 = 524,288 samples for both the CH1 Input and the CH2 Input. The
buffer can be filled with every sample at 100 MHz in roughly 5.25 ms, or the input can be decimated by
reading in every n-th sample in order to see a longer timeframe.
The Transient Recorder can be armed and triggered inside of a procedure. An example application for
this would be to arm the transient recorder before beginning to approach the probe to the sample and to
trigger it at the instant of surface interaction. This way one could get a better idea of how well the
feedback parameters assist the approach. An example output of the Transient Recorder is shown below
where the decimation was set to 50.
Figure K.35. Transient Recorder Output