babones
Member
I have started what is turning out to be a difficult project. We are filling bags with a material and trying to hit a target weight, 60 lbs. What is making it difficult is the flow rate is not consistent, 15 lbs/s - 30 lbs/s, because we are using air to move the material. I am trying to calculate the pre-act or weight to close the pinch valve to account for the reaction time of the system and varying flow rate. I started using an ABG filter to filter the weight as well as calculate and filter the flow rate. I am then using the flow rate and change in flow rate from the ABG filter to calculate how much the weight will increase during the constant reaction time of the system. I am then closing the pinch valve the resulting number of lbs before the target.
I have made many adjustments to the reaction time parameter and the parameters in the ABG filter but still unable to hit a consistent weight.
I am open to any ideas on other filters or algorithms to hit the target weight consistently.
Any help would be greatly appreciated.
Thanks
Brent
I have made many adjustments to the reaction time parameter and the parameters in the ABG filter but still unable to hit a consistent weight.
I am open to any ideas on other filters or algorithms to hit the target weight consistently.
Any help would be greatly appreciated.
Thanks
Brent