Device for measuring at least one distance-related parameter with respect to at least one target surface

A device for measuring at least a distance from one or more target surfaces, said device comprising:

• at least two measuring members each having a distal end and a proximal end spaced from each other along a longitudinal axis of the measuring member, said two measuring members being connected to each other so as to be able to perform pivotal movement about a common pivot axis passing through and perpendicular to a pivot plane of each measuring member, in which its longitudinal axis lies in any angular position of the measuring member with respect to the pivot axis, the pivot axis being disposed closer to the proximal ends of the measuring members than to their distal ends;
• and
• at least one distance sensor at each of the two measuring members, positioned so that its line of sight is transverse to a reference plane perpendicular to said pivot plane and passing through said longitudinal axis, said sensor being configured for producing a signal indicative of the distance between the sensor and a target surface;
• wherein said device is manipulable by pivoting the measuring members relative to each other about the pivot axis, at least between an open state, in which the reference planes of the two measuring members create therebetween an angle greater than 90°, optionally greater than 150°, and a folded state, in which these reference planes create therebetween an angle smaller than 90°, optionally smaller than 30°.