Ultrasonic Technology Blog

Read the latest articles on ultrasonic sensors, transducers, instruments, applications and OEM/ODM solutions.

Showing 1-10 of 23 articles

Ultrasonic transducer connected to an impedance analyzer and oscilloscope with resonance and ringing measurements

2026-08-13

How to Test an Ultrasonic Transducer: Impedance, Sensitivity, Ringing, and Pair Matching

An ultrasonic transducer cannot be accepted or rejected from its frequency label alone. “40 kHz” may describe a nominal operating region, while the measured resonance, impedance, bandwidth, sensitivity, and decay depend on construction, mounting, cable, temperature, acoustic load, and test method. A useful test plan begins with the decision it must support: incoming inspection, supplier comparison, circuit design, matched-pair selection, production screening, or failure analysis.

Clamp-on ultrasonic flow meter diagnostic screen connected to external transducers on a pipe with signal checks marked

2026-08-12

Clamp-on Ultrasonic Flow Meter Troubleshooting: No Signal, Low Q Value, and Unstable Readings

A clamp-on ultrasonic flow meter fault can originate in the instrument, transducers, cables, entered pipe data, coupling, mounting geometry, pipe condition, liquid, flow profile, power, or output mapping. Several causes produce the same visible symptom. Moving the sensors and changing five parameters at once may restore a number, but it removes the evidence needed to know which cause mattered.

Car reversing with ultrasonic parking sensors detecting a curb and nearby obstacles behind the vehicle

2026-08-12

How Automotive Ultrasonic Parking Sensors Work

Automotive ultrasonic parking sensors help drivers detect nearby obstacles when reversing or maneuvering in tight spaces. They are widely used in modern parking assistance systems because they provide fast and reliable short-range obstacle detection. By sending ultrasonic waves and analyzing the reflected signals, the system can estimate the distance between the vehicle and nearby objects and warn the driver in real time.

Open channel flow meter with ultrasonic level sensor installed above a flume

2026-08-12

Open Channel Flow Meter: Working Principle, Applications, and Benefits

An open channel flow meter is designed for applications where the liquid surface is exposed to the atmosphere, or where the pipe is not completely full. In these conditions, conventional full-pipe flow meters are often not suitable because they require the pipe to remain full during operation.

LoRaWAN smart water metering system diagram showing cloud data service, remote meter reading, smartphone reading, user checking, and decision support

2026-08-12

LoRaWAN Smart Water Metering Solutions for Remote Meter Reading

Smart water metering is becoming an important part of modern water management. Compared with manual meter reading, a LoRaWAN-based system can improve data collection efficiency, reduce labor workload, and support more accurate usage monitoring across residential, commercial, municipal, and industrial projects.

Ultrasonic water meter selection guide showing DN15 to DN500 smart metering options for remote reading, valve control, and large-diameter water flow measurement.

2026-08-12

Ultrasonic Water Meter for Smart Metering: DN15 to DN500 Selection Guide

An ultrasonic water meter is a flow measurement device that uses ultrasonic signals to measure water flow without mechanical moving parts in the measuring channel. Instead of relying on an impeller, piston, or turbine, it measures the time difference between ultrasonic signals traveling with and against the water flow.

Ultrasonic level meter comparison showing integrated, split, and bottom-mounted types

2026-08-12

Ultrasonic Level Meter: Integrated, Split, and Bottom-Mounted Types Explained

An ultrasonic level meter is a level measurement device that uses ultrasonic sound waves to measure the distance between the sensor and the surface of a liquid or solid material. In many tank and process applications, this distance is then converted into a level value based on the tank height or installation position.

Ultrasonic transducer for distance measurement showing 14kHz to 400kHz frequency range, beam angle, blind zone, and OEM design options.

2026-08-12

Ultrasonic Transducer for Distance Measurement: 14kHz to 400kHz Selection Guide

An ultrasonic transducer for distance measurement is the acoustic component that converts electrical energy into ultrasonic sound waves and converts returning echoes back into electrical signals. In a distance sensing system, the transducer transmits sound into the air, receives the reflected echo from a target, and affects whether the final signal is strong and stable enough for measurement.

Industrial liquid level measurement as one of the applications of ultrasonic sensors

2026-08-12

Various Applications of Ultrasonic Sensors

An ultrasonic sensor is a non-contact sensing device that emits high-frequency sound waves and measures the time it takes for the reflected echo to return after reaching a target object. This method is commonly known as time-of-flight measurement.

Ultrasonic water meter installation with full pipe flow direction and commissioning checks

2026-08-12

Ultrasonic Water Meter Installation and Commissioning Guide

An ultrasonic water meter measures the transit-time difference between signals travelling with and against the water flow. The electronic calculation may be accurate, but the measurement still depends on the hydraulic condition inside the meter body. Air, an incompletely filled pipe, severe flow disturbance, a misaligned gasket, reverse installation, or incorrect scaling can create a poor result even when the meter itself is functional.