Skip to main content
. 2020 Oct 23;27(Pt 6):1707–1719. doi: 10.1107/S1600577520011327

Figure 2.

Figure 2

(a) Acquisition scheme for tomograms in the parallel-beam geometry (SPEC: control software; and TG4001: pulse generator). (b) Comparison of the rotary encoder signal (red/green) and the 35 ms trigger signals from the pulse generator (purple). Two projections are separated by 0.12°. Within 50 ms the rotary encoder returns three oscillations with a step size of 0.04° per oscillation. (c) Unwrapping the arctangent signal of the rotary encoder delivers a linear angular position curve over time.