Hello Rudolf and thank you for the feedback. It looks like you have got a result and the E0.5 vibration order has dropped dramatically. I can still see it is slightly evident but this could now be down to characteristics, If our customer is now happy, we are happy. To help with an explanation of E0....

Hello and thank you for the feedback, sorry for the late reply. The formula for the crank math channel is LowPass(freq(A);8) for a crank signal utilising a pick up of 60 - 2 teeth on channel A The LowPass feature allows for the removal of those annoying spikes as a result of a momentary drop in the ...

I thought I would post this editorial I wrote some time ago as it has some useful hints and tips with regards to graphing and filtering (Especially RPM from our crank signal) It is often said that there are two skill sets required with oscilloscope diagnosis, one in the capture and one in the analys...

Hello Rudolf and thank you for the feedback, no need to apologise I know what it’s like Forgive me here as I am just trying to clarify the following: We are unable to confirm if this vibration was present before the repairs? Given the customer is complaining of the vibration in the cabin, lets stick...

Hello and thank you for your feedback and so sorry this is not resolved. Could I ask if you have access to a double headed USB 2.0 lead I ask this because it does sound like current limitation to the Pico Device via USB 3.0 sockets/laptop At the point of connection to your scope (Handshake) load is ...

Hello Brian, thank you for the post. You are correct and I apologise in advance as we should have a Guided Test to incorporate CDI This is on our list and we will get to it rest assured. The Waveform Library has a number of examples of Motorcycle ignition systems (inc. CDI) which is also utilised on...

Hello Rudolf thank you for your post. Looking at your captured data we have a considerable E2 (Second order engine vibration) This is characteristic with 4 cylinder engines but certainly not at this level (Unless the accelerometer was mounted on the engine itself) You mentioned in your post the acce...

Here is a brief video on the method for graphing the Fan Motor Speed.
I have opted for RPM as this is easier to interpret.

I hope this helps, take care.......Steve

Hello and thank you for the feedback The speed signal of the Fan Motor was captured using the Pico Optical Sensor kit https://www.picoauto.com/products/nvh-accessories/optical-sensor-kit Here we place a piece of reflective tape anywhere about the motor armature. The Optical Sensor light beam is then...

Hello Nev, welcome to the forum Please feel free to use all the training and education facilities at your disposal here and also at our website https://www.picoauto.com/ The following links will most certainly help https://www.picoauto.com/library/training https://www.picoauto.com/library/automotive...