A cheap and simple device for recording infrasound is presented. Costs for this project are in the order of 150 EUR. A subwoofer converts the pressure variations created by infrasound into a voltage signal, a homemade preamplifier is used for magnifying the signal amplitudes to a detectable level. Finally, a commercial data logger acts as second amplifier stage and allows data storage at sampling rates of up to 500 Hz via USB port. Using a subwoofer with a 10 inch membrane, the resulting detector offers excellent sensitivity down to frequencies of Hz.
The excellent suggestion of using a subwoofer as detection element has been proposed by Oona Räisänen (Low-frequency exploration microphone, The device presented here is a refined design based on this idea.
1 view
99
23
2 months ago 00:20:02 1
NEW Thermaltake TH360 V2 Ultra ARGB Sync AIO CPU Water Cooler With IPS LCD Screen
2 months ago 00:10:52 1
Kartoffeln mit Zwiebeln sind schmackhafter als Fleisch. Warum kannte ich dieses Rezept nicht? asmr
2 months ago 00:25:10 1
Let’s Make - Palm Trees (Battlefield Pacific Series)
2 months ago 00:03:37 1
Electric Callboy - WE GOT THE MOVES (OFFICIAL VIDEO)
2 months ago 00:20:25 1
The DEADLY self-cleaning litter boxes that have flooded the market
2 months ago 00:09:24 1
Beans & Cornbread in my Cauldron |ASMR Hearth Cooking| Justine’s Own
2 months ago 00:06:10 1
Ultra Realistic Trees - Cheap Trees That Look Amazing! - Model Scenery
2 months ago 00:25:38 1
Build and paint your first Warhammer model: perfect for beginners
2 months ago 00:27:25 1
Searching For LOVE In Bello Colombia 🇨🇴 Dangerous Idea?
2 months ago 00:05:23 1
Consumer Crypto 🔥Abstract: Revolutionizing Blockchain with Speed and Low Fees
2 months ago 00:00:23 1
Purchase Cheap Reverbnation Promotion for your Songs
2 months ago 00:04:27 1
Korn - Freak On a Leash (Official HD Video)
2 months ago 00:13:10 1
Обзор SMSL DO200 Pro: стационарный ЦАП на 12 чипах конвертера
2 months ago 00:02:35 1
DRUNK MUMS - NEW AUSTRALIA
2 months ago 00:03:09 1
Love Comes a-Tumblin’ Down
2 months ago 00:18:02 1
Технологии будущих чипов | Нанолитография, рентген
2 months ago 00:08:03 1
Family Builds Cheap House From Earthbags | Start to Finish by @CaseyYoungblood
2 months ago 00:40:01 3
Белинда Дэвидс об Уитни Хьюстон, Майкле Джексоне, пандемии и чипах Илона Маска