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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

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TaserX26 current increases with dart depth.

Amit J Nimunkar¹, John G Webster

¹Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706, USA. ajnimunkar@wisc.edu

Physiological Measurement

|September 3, 2010

Summary

This summary is machine-generated.

The Taser X26

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Area of Science:

Electrical Engineering
Biomedical Engineering
Forensic Science

Background:

The Taser X26 device delivers electrical current for electromuscular stimulation.
Understanding its current waveform and interaction with physiological loads is crucial.

Purpose of the Study:

To model the Taser X26 current discharge during the stimulation phase.
To investigate the impact of load variations, specifically dart penetration depth, on the electrical output.
To assess the Taser's efficacy in stimulating cardiac cells.

Main Methods:

Developed a simplified overdamped series R-L-C circuit model for the Taser X26 current discharge.
Simulated a physiological load using saline solution to mimic human torso resistivity.
Conducted experiments on pigs to validate model predictions regarding dart depth and resistance.
Utilized an R-C circuit to measure cardiac cell stimulation thresholds.

Main Results:

The R-L-C circuit model reasonably approximated the Taser X26 current waveform and load variation effects.
Dart penetration depth significantly influenced peak current and load resistance more than separation distance.
Pig experiments confirmed decreased resistance and increased current with deeper dart penetration.
Cardiac cell stimulation was 2.05 times more likely with 9 mm dart penetration compared to surface contact.

Conclusions:

The simplified circuit model effectively explains Taser X26 electrical output under varying load conditions.
Dart penetration depth is a critical factor affecting Taser effectiveness and physiological impact.
Taser X26 demonstrates a significantly increased likelihood of stimulating cardiac cells with deeper penetration.