Svenska ElektronikForumet

Murata och även andra har en del info i sina App.Notes: https://www.murata.com/en-eu/products/s ... evelopment
https://www.infineon.com/dgdl/Infineon- ... ation_note
https://www.renesas.com/us/en/document/ ... -interface
https://www.ti.com/lit/an/slaa907d/slaa ... 3610594775
https://www.ti.com/lit/an/snaa220a/snaa ... 1002150929
https://www.nxp.com/docs/en/application-note/AN4841.pdf
https://www.migatron.com/ultrasonic-det ... lications/

Lite off topic kuriosa....Elefanter hör riktigt långt ner i frekvens, stora öron kanske hjälper?

humans 20 20,000
cats 100 32,000
dogs 40 46,000
horses 31 40,000
elephants 16 12,000
cattle 16 40,000
bats 1,000 150,000
grasshoppers and locusts 100 50,000
rodents 1,000 100,000
whales and dolphins 70 150,000
seals and sea lions 200 55,000