James Wren was Sales & Marketing Manager for Prosig Ltd until 2019. James graduated from Portsmouth University in 2001, with a Masters degree in Electronic Engineering. He is a Chartered Engineer and a registered Eur Ing. He has been involved with motorsport from a very early age with a special interest in data acquisition. James is a founder member of the Dalmeny Racing team.3837class="post-3837 post type-post status-publish format-standard hentry category-p8000 category-tutorial tag-bridge tag-bridge-completion tag-calibration tag-excitation-voltage tag-p8000 tag-strain tag-strain-gauge"
I’m often asked whether the Prosig P8000 systems support strain gauges. And what configuration of strain gauge bridges are supported? The answer is all types of all the different configurations. Continue reading Does the P8000 support strain gauges? And which types?3813class="post-3813 post type-post status-publish format-standard hentry category-dats category-signal-processing category-tutorial tag-dats tag-moving-average tag-p8000 tag-trend"
This tutorial guides a DATS user through the steps required to perform a moving average on a given signal. The tutorial explains the concept of the ‘Integration Length’ and the ‘Output Interval Step’.
Initially a signal is required to perform the moving average on. In this tutorial a sine wave will be generated. A sine wave is generated using the parameters shown in Figure 1.
Continue reading Example of performing a Moving Average3687class="post-3687 post type-post status-publish format-standard hentry category-p8000 tag-bnc tag-differential tag-ground tag-grounding tag-noise tag-p8000 tag-poor-grounding tag-single-ended"
A question was recently posed regarding the grounding conditions of a BNC type input. The shield or outer of a BNC cable or connector is not connected to the chassis or ground. What would happen if it was connected to ground?
Continue reading Is it possible to connect the BNC outer to ground when using a P8000?3676class="post-3676 post type-post status-publish format-video hentry category-dats category-tutorial category-video post_format-post-format-video"
3541class="post-3541 post type-post status-publish format-standard hentry category-dats category-signal-processing category-tutorial tag-analysis-frequency tag-anti-alias tag-anti-aliasing tag-antialias tag-downsample tag-frequency tag-maximum-frequency tag-nyquist"
The maximum analysis frequency is always half the sample rate of the input signal.
So if your data is captured at 50kHz the maximum analysis frequency will be 25kHz.
Continue reading What is the maximum analysis frequency for a waterfall in DATS?3644class="post-3644 post type-post status-publish format-standard hentry category-dats category-tutorial tag-color-plot tag-harmonics tag-intensity tag-order tag-order-plot tag-order-track tag-waterfall tag-waterfall-plot"
In this tutorial we will be creating order plots using waterfall and intensity displays using use the DATS.toolbox and Rotating Machinery Analysis option.
To begin, a noise, vibration or other signal of interest should be captured along with a tachometer signal.
In Figure 1 we have loaded a time series (in this case an acceleration signal) and a time series of a tachometer pulse train into the DATS software.
Continue reading Creating Order Plots Using The DATS Rotating Machinery Software3625class="post-3625 post type-post status-publish format-video hentry category-dats category-tutorial category-video tag-dats tag-graph tag-noise tag-orbit tag-orbit-plot tag-vibration post_format-post-format-video"
A short video tutorial describing how to create an orbit plot using the DATS software
When using an analogue channel input channel of a P8000, with a tachometer sensor, is it possible to utilise the tachometer processing functions as you would if you were using a tachometer input of the P8000?
For example could you display an RPM on an analogue channel?
When using an analogue channel it is possible to select, from the signal setup matrix, ‘Trigger Type’, with this option set to ‘Tacho’ and the ‘Trigger Level’ set to the voltage crossing threshold several features become available in terms of tachometer processing.
By selecting the above options the user will be able to use the ‘Digital Panel’ display type from the signal display and thus by selecting the ‘Speed’ option in the ‘Display Type’ drop down list an RPM will be available.3575class="post-3575 post type-post status-publish format-video hentry category-dats category-tutorial category-video tag-acoustics tag-dats tag-mapping tag-noise tag-sound tag-sound-mapping tag-sound-pressure-mapping post_format-post-format-video"
3543class="post-3543 post type-post status-publish format-standard hentry category-dats category-signal-processing category-tutorial tag-block-size tag-blocksize tag-fft tag-fft-block-size tag-frequency-domain tag-frequency-spacing tag-waterfall tag-waterfall-frequency-spacing tag-waterfall-plot"
Let us try to understand what waterfall frequency spacing is. Waterfall frequency spacing is the gap between spectral lines in an FFT plot.
For example, if you had an analysis frequency of 0Hz to 100Hz and 100 spectral lines, then Frequency Spacing is 1Hz.
So why is there a ‘Requested Frequency Spacing’ and an ‘Actual Frequency Spacing’? Continue reading What is waterfall frequency spacing? And how does the DATS parameter ‘Requested Frequency Spacing’ work?Proudly powered byWordPressDesign byBlogoLife