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I need to receive the starting time of the water breakthrough in absorbers. For that I do following: Filtering the signal of water content to smooth it. Creating the derivative of the water content to use it further to find where the water content increasing Creating the conditions: A. when the inlet valve is open (adsorbtion cycle) B. when the water content is higher than 0.5 (for 5 min) C. when the derivative is higher than 0.0001 to find the increasing of the water content 4. Creating the composite conditions: AA. intersection of A
FAQ: I've got a signal with drop-outs and I want to filter my signal to only visualize samples with values above a threshold. Is there a quick way to do this in Seeq? Solution: We can use Seeq's Signal Filtering capabilities to break down a signal into individual samples and create a new signal that keeps the samples only above your specified threshold. 1. Visualize your signal with drop-outs and determine the threshold value. For this example, we will filter out all samples with a value of less than or equal to 40F. 2. Open a new Seeq Formula window and use th
FAQ: I want to identify the change in value of my signal after a change has occurred. My signal is generally constant (with typical noise) aside from when an event occurs during which there is a step change in the value of the signal. Solution: In order to compare the actual value of the signal before and after some event, you must first identify the event. Method 1: Running Delta. Note: an approach using the running delta function can be preferred to the derivative function (Method 2) when step changes are present as the derivative is infinite during these steps. Using the
I have a condition that represent unit procedures. These capsules come from a batch execution system connector. Each capsule in the condition contains a property called 'Max Temperature'. I am trying to create a condition that just have the hot capsules. I am using a Seeq formula and filter to do this. Here's my formula: $c.filter( $cap -> $cap.getProperty('Max Temperature').isGreaterThan(170) ) I don't get any errors from this formula, but, I don't get any results. I know some of the max temperatures are higher than 170 because I can view that in the Seeq Details pane: W