Figure 4 | Scientific Reports

Figure 4

From: The MyoPulser field stimulator, a do it yourself programmable electronic pacemaker for contracting cells and tissues

Figure 4

Multiphasic pulsing and effect of the “phase-multiplier”, measured with an oscilloscope. (A) Shows the measured output of the MyoPulser, with “polyphasic”-pulsing, a pulse time of 10 ms and a “phase-multiplier” of P = 0 applied. The AC-frequency of the according pulse was about 32 kHz, the maximum frequency the device can deliver. Increase of the phase-multiplier to P = 1 resulted in polarity inversion every single millisecond (1 kHz), shown at (B). Further increase of the multiplier to P = 2 results in polarity inversion every 2 ms (0.5 kHz), displayed in (C). The vertical dashed lines include the adjusted pulse time of 10 ms.

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