The purpose of this system is to prevent stray cats from accidentally entering parts of a vehicle’s structure ... Pi 4 that detects the presence of a cat near a vehicle using infrared (IR) sensors, ...

These types of pest repellers are safe to use with dogs and cats, as they cannot hear the ultrasonic sound. They should not be used in areas where guinea pigs, chinchillas, tarantulas or other small ...

The CatStop motion-activated outdoor cat deterrent device from Contech can help restore neighborhood harmony while protecting birds and gardens from the natural instincts of cats. It detects motion ...

Electronic insect repellents are small ultrasonic devices that emit high frequency sound waves, the purpose of which is to repel or scare away insects ... Pest repellents are not harmful for most ...

While the noise of crinkling paper is obviously not in the ultrasonic range, cats may be attracted to it because it mimics ...

In the TBS, the distribution of sound pressure in the sound field is used as a constraint condition to provide a reference for the design of ultrasonic transducers. Considering a focused ultrasound ...