What would you call this, in technical language?

[KingNothing]

I'm an EE with a fried brain right now, how would you describe the device in the attached picture in technical language?

So far I've called it a "double-jointed robotic arm with one joint affixed to a mounting surface". That sounds really bad and not descriptive.

 

[Mapes]

2DOF manipulator. This is like a double pendulum configuration: two rotational joints connected in series. Maybe that will give some search terms to narrow down the conventional nomenclature.

 

[Danger]

I wouldn't involve the term "robotic" at all, since there are no actuator mechanisms. It's just a bunch of joints held together with sticks.
The best that I can currently think of is "a 2D representation of a multi-axis linear assembly". That, of course, makes no sense whatsoever unless accompanied by the illustration. (Personally, I'd go with the "joints & sticks" explanation... )

 

[Dr Lots-o'watts]

I'd go with double-jointed arm.

 

[alphy]

In technical language, I would describe the device in the attached picture as a "bilateral kinematic manipulator with a fixed base and two revolute joints." This terminology captures the mechanical structure and function of the device, specifically its ability to move in two axes (bilateral kinematics) and its two revolute joints which allow for rotational motion. This description is more precise and specific, providing a clearer understanding of the device's capabilities.