Scripts and Automation: Delay meterThe delay meter script measures the inter channel delay between channels A and B of the dScope by measuring the arrival times of a burst waveform.
By setting the dScope analyzer inputs so that the generator signal goes both directly to channel A of the Analyzer and through the equipment under test to channel B of the Analyzer, it is possible to measure propagation delay directly. The delay measurement can be accurate to within one sample period and can be several hundred ms long, depending on the FFT buffer size and the burst waveform. The meter also has the option to ignore a user determined period after the detection of a burst on channel A. This is useful if there is crosstalk or direct signal before the delay that is being measured.
This script makes use of an FFT detector to allow a script access to the sample buffer. It reads individual values from the sample buffer to determine the trigger points in order to calculate the delay. The principles used here can be used for other measurements where access to the sample buffer is required. This script could also be easily modified to measure other parameters that can be calculated from the sample data.
The download file is a zip archive containing the required scripts and PDF documentation.
|Resource Type: Scripts and Automation
(File Download) |
Download Link: Delay_Meter.zip
Size: 95 KiB