Hello everybody, newbie here.
My problem: I am working on an electrically driven platform lifter. The lifting is being done by -two- linear actuators that need to always be equal in height, no matter the weight discrepancy between them.
Retracted State
Expanded State
Encased in the rising boxes are two linear actuators. In order to keep the table stable, they must be rising at the exact same rate.
To do this, I came up with an idea that would get them to rise in sync. I want to place an LED on one box, and based on which one of three sensors picks up the light, three different things will happen:
If the middle sensor on actuator #2 picks up the light, that means that actuator 1 and actuator 2 are at the same height. Therefore, they are both risen at the same time. If the bottom sensor picks up the light, that means that actuator #2 is higher than actuator #1. Therefore, current must be turned off to actuator #2 until actuator #2 catches up in height. If the top sensor picks up the light, that means that actuator #1 is too high, and thus current is turned off to it until actuator 2 catches up.
Heres what I'm trying to do:
My questions:
1. Is this design a plausible solution to my problem? Do you think it will work?
2. If it will work, do you have suggestions on components? I think I will use solid-state relays for the optical sensors.
3. The actuators require 10A each. How should I go about creating this current? I want this machine to work from a standard wall plug.
Any other advice would be GREATLY appreciated... This is a great community!!
-Bzzzt
My problem: I am working on an electrically driven platform lifter. The lifting is being done by -two- linear actuators that need to always be equal in height, no matter the weight discrepancy between them.
Retracted State
Expanded State
Encased in the rising boxes are two linear actuators. In order to keep the table stable, they must be rising at the exact same rate.
To do this, I came up with an idea that would get them to rise in sync. I want to place an LED on one box, and based on which one of three sensors picks up the light, three different things will happen:
If the middle sensor on actuator #2 picks up the light, that means that actuator 1 and actuator 2 are at the same height. Therefore, they are both risen at the same time. If the bottom sensor picks up the light, that means that actuator #2 is higher than actuator #1. Therefore, current must be turned off to actuator #2 until actuator #2 catches up in height. If the top sensor picks up the light, that means that actuator #1 is too high, and thus current is turned off to it until actuator 2 catches up.
Heres what I'm trying to do:
My questions:
1. Is this design a plausible solution to my problem? Do you think it will work?
2. If it will work, do you have suggestions on components? I think I will use solid-state relays for the optical sensors.
3. The actuators require 10A each. How should I go about creating this current? I want this machine to work from a standard wall plug.
Any other advice would be GREATLY appreciated... This is a great community!!
-Bzzzt