How can I measure the position of platform?

I have a simmechanics model like in photo. I want to know angle information this platform which ı draw in photo. How can I measure with using scopes?

[Birdman]

What is your upper platform connected to? Can you also attach a figure for that as well?

[bayram özmen]

Upper platform connect to one more things like three servo motors and kardanbasit_1_RIGID. you can see the model.

[Birdman]

Second question, which joints actuate the platform? Can you mark them on figure?

[bayram özmen]

I applied some input the joints and then platform moved. So ı want to learn angle of platform.