Ultrasonic distance sensor

Ultrasonic distance sensors, also known as ultrasonic proximity sensors or sonic transducers, are non-contact measurement devices that use high-frequency sound waves (typically 20 kHz to 400 kHz) to detect the presence, distance, or level of an object. These sensors operate on the principle of time-of-flight (ToF), emitting an ultrasonic pulse and measuring the time it takes for the echo to return after reflecting off a target. Key technical parameters include sensing range (from a few centimeters up to several meters), beam angle (typically 5° to 60°), resolution (down to sub-millimeter), and output type (analog 4-20 mA, 0-10 V, or digital switching outputs like PNP/NPN). They are available in various housing styles, such as cylindrical M12, M18, M30, or rectangular designs, with protection ratings up to IP67 or IP69K for harsh environments. The frequency and power of the transducer determine performance in terms of accuracy and immunity to ambient noise.

Ultrasonic distance sensors are widely deployed in industrial automation, process control, and facility management. Common applications include liquid level measurement in tanks (water, chemicals, fuels), object detection on conveyor belts, presence sensing in packaging machinery, and collision avoidance in mobile robotics. They are also used in parking assistance systems, silo level monitoring, and paper or web tension control. These sensors excel in environments with dust, fog, or light interference, where optical sensors may fail, making them ideal for outdoor or dirty industrial settings.

Within this category, Electric Automation Network offers a comprehensive range of ultrasonic sensors, including subcategories like analog output sensors (e.g., code series UC-20-30-A for 4-20 mA output), digital switching sensors (e.g., UC-18-50-D with PNP/NPN outputs), and compact M12 sensors (e.g., UC-12-10-S for short-range detection). The article codes typically follow a pattern: UC (ultrasonic) followed by housing diameter (e.g., 12, 18, 30), then range in meters (e.g., 10 for 1 m), and output type (A for analog, D for digital). For example, UC-30-50-A indicates a 30 mm diameter sensor with a 5 m range and analog output. These sensors are available with optional accessories like mounting brackets, reflectors, and cable connectors.

Partnering with Electric Automation Network ensures access to genuine, high-quality ultrasonic sensors from leading manufacturers, with real-time pricing and stock availability. Our express worldwide shipping guarantees fast delivery to your facility, minimizing downtime. Our team of specialized engineers provides personalized technical support, helping you select the right sensor for your application, whether it requires specific beam angles, output configurations, or environmental ratings. We also offer detailed technical documentation for each article, including datasheets and wiring diagrams, to streamline integration into your automation system.