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US 6,586,920 B1Granted
Lightning detector
OwnerYoshihiro Hirakawainventor
Life of this patent
Estimating the term…
Abstract
A lightning detector featuring improved reliability over the conventional radar-type or coherer-type lightning detector that measures the intensity of static electricity or the intensity of electromagnetic waves, includes a coherer with an automatically restoring decoherer. The coherer is equipped with a separate coherer for a lightning circuit. The lightning detector detects and operates the (static) position and/or approaching/separating condition (dynamic) data of the thundercloud while protecting its own circuit.
Claims20
A lightning detector comprising:
- an antenna;
- a coherer with a decoherer;
- a low-pass filter installed between the antenna and the coherer;
- an indicator operatively coupled to said coherer;
- and
- a power source coupled to said filter,
- the lightning detector for detecting an intensity of impulse electromagnetic waves of not smaller than a predetermined value produced by a thunder-bolt outside a lightning range, and for smaller than a predetermined value produced by a thunder-bolt outside a lightning range, and for producing at least one of an indication and an alarm on an indicator to notify that the thunder-bolt is approaching the lightning range.
4 more elements
A lightning detector comprising:
- an antenna;
- a coherer in communication with the antenna that detects an intensity of impulse electromagnetic waves not smaller than a predetermined value produced by a thunder-bolt outside a lightning range;
- and
- an indicator operatively coupled to the coherer, wherein the indicator produces at least one of an indication and an alarm to notify that the thunder-bolt is approaching the lightning range.
1 more element
A lightning detector comprising:
- a coherer means for detecting an intensity of impulse electromagnetic waves not smaller than a predetermined value produced by a thunder-bolt outside a lightning range;
- and
- an indicator means for producing at least one of an indication and an alarm to notify that the thunder-bolt is approaching the lightning range.
Dependencies are inferred from the claim text.