The scope of the 2D g-value measurement application is to obtain the 2D-angular behaviour of complex fenestration systems. As an extension of the in-situ g-value device, a moveable 2D g-value measurement apparatus including a 2-axis movable mirror as well as a small horizontally rotatable measurement box, allows to measure instantaneous g-values under real sun conditions and definite incident angles.
The scope of the 2D g-value measurement application is to obtain the 2D-angular behaviour of complex fenestration systems. As an extension of the in-situ g-value device, a moveable 2D g-value measurement apparatus including a 2-axis movable mirror as well as a small horizontally rotatable measurement box, allows to measure instantaneous g-values under real sun conditions and definite incident angles.