diy lightning detector - circuit 1
DESCRIPTION
circuitry design for a lighting detectorTRANSCRIPT
Skip to posts
Circuits
Forum
Links
Participate!
Policy
Showcase
Contact
Alarm
Audio
Datasheet
DIY
Gadgets
Lights
Measure
Power supply
Radio
Reviews
Service
Solar
Theory
Useful
Various
Search
<< Find more projects
Lightning detector
January 27, 2009 P. Marian 4 comments
category: DIY, Measure tags: lightning
This DIY lightning detector circuit is a very sensitive static electricity detector that can provide an early
warning of approaching storms from inter-cloud discharge well before an earth-to-sky return strike takes
place. An aerial (antenna) formed of a short length of wire detects storms within a two mile radius.
The circuit emits an audible warning tone from a piezo buzzer, or flashes an LED for each discharge detected,
giving you advance warning of impendig storms so that precautions may be observed.
Lightning Warning System
Strike Guard & WAVE Siren Lightning Detection-
Fully Automatedwxline.com
Acrobat X
Now with Custom PDF Portfolios, Guided
185 favoritesStumble! I like it! Share All topics
2011/03/06 DIY Lightning Detector
electroschematics.com/…/lightning-de… 1/4
The primary feature in the lighting detector is the circuit’s ability to be set close to self-oscillation, with its
relaxation optimised via the bias resistor values shown in the circuit diagram. The oscillator is dc coupled and
feedback is routed through the collector of TR1 to the base of TR2, while the overall loop gain is set with the
multiturn(12, 18 or 22) preset VR1.
Lightning detector setting up
To set up the lightning sensor, adjust preset VR1 for oscillation by monitoring test point TP1, which should be
at roughly 7volts peak-to-peak. Test point TP2 should be at +6V dc. Now readjust VR1 back slightly to
stop oscillation; use a screwdriver to touch the aerial-side of C1 several times; the alarm should sound for 1
or 2 seconds then stop. If it continues, make a very small adjustment back and recheck. The other method is
to electrostatically charge a plastic ruler and then draw your finger close to discharge, about two meter away
from the aerial.
Lightning detector schematic
Powered from a 9 volts battery the lightning detector circuit consumes about 600 uA in standby. Powered
continously it could provide a good year of uninterrupted monitoring.
When sounding the alarm, the current will rise to 4mA depending on the low current sounder WD1. A
minimum 3 volts device is required for a good output level and it will produce a “pinging” alarm to warn in
real time of any electrostatic pulse activity.
Now with Custom PDF Portfolios, Guided
Actions, Sharepoint & More!www.adobe.com
SENSOR: CCTV Distributor
The best brands in CCTV: Bosch, CNB Vivotek,
Samsung, Flir, Pinetron...www.sensorsecurity.net
Strike Alert
Lightning Detectors 011 795 9500 Speak to Nazwww.allpronix.com
Leak Detection Equipment
Find water leaks FASTER Prompt delivery
throughout SAwww.sewerin.co.za/Sales
UPS, Surge Prot., AVR
Specialists in UPS's up to 3.6MVA
Manufacturers of surge protectionwww.phdpowerhouse.co.za
InfraRed Sensors-TJC (RSA
Industrial IR safety sensor systems
2011/03/06 DIY Lightning Detector
electroschematics.com/…/lightning-de… 2/4
Enter the email address and subcribe to newsletter: Subscribe
Search
<< Find more projects
Comments
Leave a comment Trackback
Written by steven chiverton on July 8, 2010. Reply
the bc109 transistor aint selling at our closest electronics store so can i use the bc517 darlington
transistor, and if so what do i need to change in the lightening detector circuit to use that transistor
Written by Andrew on December 4, 2010. Reply
You wont be able to swap for a darlington type, try a bc548c, pn100 or a 2n2222
Written by ThierryD on December 17, 2010. Reply
You can find it a lightning detector for DSLR who works fine :
http://rienquepourlesyeux.free.fr/Detecteur%20de%20foudre/Lightning%20detector.htm
it is easy to make and for a very low cost.
It permit to take photo of lightning by night and by day
Written by jithin on January 13, 2011. Reply
i have tried out the mobile sniffer for my project and it came out well…. but i need some help with this,
how can i increase the range of detection of the mobile phones???????? plzzzz help me.
Leave a Comment
Your name
Your email
Industrial IR safety sensor systems
Photoelectric sensors-(011)462-4253www.switches.co.za
Benton Battery Chargers
Benton BX1 & BX2 Motorbike, Boat, Car & Truck
chargers. From R425www.bike2bike.co.za
2011/03/06 DIY Lightning Detector
electroschematics.com/…/lightning-de… 3/4
Your website
Subscribe to comments Leave comment
Notify me of followup comments via e-mail
Previous Post Next Post
Subscribe to newsletter
Receive the projects by email: Subscribe
Related Articles
1. Smoke detector circuit
2. Simple RF Detector for 2 m
3. Presence detector, proximity sensor circuit
4. Simple metal detector circuit
5. Improved Infrared Detector
Recent Articles
Light Dependent Resistor PC Desk Lamp
Sensitive Freezer Alarm with Buzzer
Handy Pen Torch
Quartz 1Hz Timebase
Quartz Controlled Bedroom Light Switch
Recent Comments
Navinesh on Sensitive Freezer Alarm with Buzzer
iuly on Wideband VHF preamplifier
Christopher on Three State Voltage Indicator
Venkat on White LED Flood Lamp
mujawar Abrar on Quartz 1Hz Timebase
© 2008 - 2011 electroschematics.com - My Profile
2011/03/06 DIY Lightning Detector
electroschematics.com/…/lightning-de… 4/4