Ultrasonic sensors have various applications, such as Robotic, Automobile, Agriculture, Petroleum, Metallurgy, Medicine, and even in food industry. In every materialistic condition which sound waves can move,we can use ultrasonic sensors, therefore they can be a lot of applications for it.超声波传感器有着广泛的应用，如机器人、汽车、农业、石油、冶金、医药，甚至在食品工业中。在声波可以运动的任何物质条件下，我们都可以使用超声波传感器，因此超声波传感器具有广泛的应用前景。
In medical application although it has rival technologies such as X-ray and magnetic resonance imaging, but it has desirable features such as Doppler motion study which other technologies can’t provide. 在医学应用方面，虽然它有x射线和磁共振成像等竞争技术，但它具有其他技术无法提供的多普勒运动研究等令人满意的功能。
In addition, among the various modern techniques for the imaging of internal organs, ultrasonic devices are by far the least expensive. Ultrasound is also used for treating joint pains and for treating certain types of tumors for which it is desirable to produce localized heating.此外，在各种用于内部器官成像的现代技术中，超声波设备是迄今为止最便宜的。超声波也用于治疗关节疼痛和治疗某些类型的肿瘤，这些肿瘤需要产生局部加热。
