Description of the Klemperer wing strain meter (accelerometer)
A 1922 technical report from the NASA Technical Reports Server describing the Klemperer wing strain meter, an accelerometer instrument, with one photographic plate of its mechanism. The image is a low-contrast, heavily dithered scan of a dark circular dial-like device with coiled springs and fittings against a pale background, so a designer might use it for its grainy halftone texture and the mechanical, instrument-panel geometry of its circular form.
