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India - Member - Sensors Technology Popular Science - Cosmology - Dream, Think and Act

Join Date: Aug 2006
Location: Gwalior, Madhya Pradesh, India
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ESD Gun - Shocking? Yes!
08/30/2006 10:49 AM

I discovered ESD Gun and published many articles in EDN magazine few years ago. Perhaps many of you may find it interesting again so here are the details.

Piezoelectric gas lighter is $1 ESD gun prime part. On squeezing the gas lighter trigger you get about 15000V at its sparking tip point. That spark you see comes at minimum 4000V / mm electric field generated by mechanical energy you apply in impulse hit on a Piezoelectric Crystal. Generally 3mm to 5mm is the distance between central electrode and side metal wall at the sparking end. It can give mild shock if you let it discharge through your body.

ESD supper Gun is made by collecting the generated electric charge by the ESD Gun on a high voltage capacitor. You may have to squeeze the trigger of the ESD Gun many times to get enough charge on the capacitor. Use a high voltage diode in series such that capacitor is not discharged by leakage current from reverse flow. Fully charged capacitor of about 10000pF/20kV can easily kill a man as it can dump 10A current in 100ns at lightening speed. Shocking? Yes!

Do not have fun with this $1 technology. It is a real danger.

Shyam
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Prof. (Dr.) Shyam, Managing Director for Sensors Technology Pvt. Ltd. Gwalior, MP474020, India. www.sensorstechnology.com/
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