US 4,386,834 AGranted

Kirlian photography device

AssigneeKirlian Equipment Corporation

InventorWilliam K. Toolan

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Abstract

A battery-powered corona discharge photography device for holding a photographic recording medium adjacent an electrode, with a specimen in contact with the recording medium. A highly regulated voltage source is coupled by a voltage step-up circuit to a capacitor for storage of an increased level voltage. A silicon controlled rectifier is triggered by a pulse generator to discharge the capacitor, causing a voltage pulse across a transformer primary. Once the pulse generator is activated, it generates a series of pulses of a number determined by the setting of a switch, and so a like series of high voltage electrical pulses is generated across the transformer secondary, and this secondary is connected to the electrode. Either of two transformers can selectively be utilized, to provide selectivity in the frequency characteristics of the high voltage electrical pulses. Means are also provided for reversing the polarity or adjusting the voltage level of the high voltage electrical pulses.

Claims12

Dependent claims

A corona discharge photography device comprising electrode means;

means for holding a photographic recording medium adjacent said electrode means to contact a specimen to be subjected to corona discharge photography;
a source of electrical control pulses;
activating means for activatin g said electrical control pulse source;
a counter for counting electrical control pulses from said electrical control pulse source and deactivating said electrical control pulse source in response to counting of a preset number of electrical control pulses;
a voltage source;
voltage regulator means for regulating the voltage level of the voltage from said voltage source;
high voltage generating means coupled to said voltage regulator means and said electrical control pulse source and responsive to each electrical control pulse for generating from the regulated voltage a high voltage electrical pulse;
and means coupling said high voltage pulse generating means to said electrode means for application of the high voltage pulses thereto to cause corona discharge about a specimen contacting a photographic recording medium adjacent said electrode means to make a corona discharge photograph of the specimen on the photographic recording medium.

5 more elements

Dependencies are inferred from the claim text.