We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is an Ultrasonic Circuit?

By Paul Reed
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Sounds are heard everywhere in nature, except in the vacuum of space. Humans and animals often rely on sound for communication, navigation and location information. When humans need to interpret sounds above the range of hearing, an ultrasonic circuit can create, send and receive high frequency signals.

Ultrasonics are sound waves with frequencies higher than human ear can normally detect. Typical ultrasonic frequencies are greater than 20,000 Hertz (20 kHz), or cycles, per second. High frequency sounds have a wide range of uses, including distance measuring, medical uses, and security devices.

Sound waves can be used to measure distances. An ultrasonic circuit can create a high frequency sound pulse of short duration that will travel through air or water, measuring the amount of time for the pulse to return to the device. Software then calculates the distance to the object. The speed of sound is different depending on whether air or water is present, so the software may correct for the type of water, temperature and density.

Sonar, or sound navigation and ranging, is used in ships and submarines for navigation and detection. This is an ultrasonic circuit using transducers to send and receive the sound pulses for detection of other vessels or underwater features. Short pulses are used rather than a continuous frequency to provide more sound energy for accuracy.

Another use of sonar ultrasonics is for inspection of underwater structures, geology, and search and rescue. Portable sonar devices can be attached or towed behind surface ships. These devices send ultrasonic pulses in desired directions and create images of undersea structures based on the reflected sounds. Fish finder devices used on private and commercial fishing vessels use a similar system to detect schools of fish below a boat.

An ultrasonic circuit can be used as a medical imaging device, and is typically referred to as an ultrasound machine. The circuit produces a focused ultrasonic frequency in a hand-held probe that can be placed on a patient's body. Software processes the reflected sounds and creates an image of internal organs on a monitor. The resulting images can be used for medical diagnostics, observation of heart and blood vessels, and prenatal observation of a fetus, or unborn child, inside the mother.

Ultrasonic frequencies can travel through solid materials and can be used as a diagnostic tool. A portable device similar to an ultrasound machine can be used on bridges, pressure vessels, or other equipment to look for internal flaws or cracks prior to failure. This technology is used for non-destructive testing of aircraft structural parts during routine inspections. It can find very small cracks and fatigued areas from repeated takeoffs, landings and in-flight stresses.

Sound can be used to provide signals used for security systems. The principle is the same as sonar or ultrasound, with a frequency sent and received by an ultrasonic circuit. In this case, any received signal indicating movement can trigger an alarm circuit. These systems can be used where infrared, or heat sensing, security systems do not operate correctly due to temperature or other conditions.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.