10mm 40kHz Ultrasonic Sensor for Measuring Distance
Specification
Product Overview
The MSO-A1040H07T 10mm 40kHz Ultrasonic Sensor is an open-type ultrasonic transmitter designed for distance measurement, object detection, ranging systems, parking sensors, robotics, automation devices, and embedded ultrasonic sensing applications.
With a 40±1.0KHz center frequency, ≥115dB sound pressure level, 80°±15° directivity, and 0–1200cm detectable range, this ultrasonic sensor provides strong acoustic output for reliable ultrasonic transmission in measuring distance applications.
The compact 10×7mm aluminum housing makes this ultrasonic transducer suitable for space-limited electronic devices that require stable signal transmission, low-profile design, and easy integration into sensor modules or custom control boards.
Key Features
40±1.0KHz center frequency supports standard ultrasonic ranging and object detection systems.
Transmitter-type design provides ultrasonic signal output for distance measurement applications.
≥115dB sound pressure level helps deliver strong acoustic energy for stable detection performance.
80°±15° directivity at -6dB offers wide ultrasonic coverage for sensing applications.
0–1200cm detectable range supports short-distance and long-distance measurement requirements.
Aluminum housing improves mechanical strength and supports durable installation in electronic assemblies.
Technical Specifications
| Item | Value |
|---|---|
| Model | MSO-A1040H07T |
| Dimension | 10×7mm |
| Construction | Open Type |
| Using Method | Transmitter |
| Center Frequency | 40±1.0KHz |
| Sound Pressure Level | ≥115dB |
| Capacitance | 2200±25%pF at 1KHz |
| Directivity | 80°±15° (-6dB) |
| Maximum Input Voltage | 40Vp-p |
| Detectable Range | 0–1200cm |
| Housing Material | Aluminum |
| Operating Temperature | -20℃ to +80℃ |
| Storage Temperature | -20℃ to +80℃ |
Applications
This 10mm 40kHz ultrasonic transmitter can be used in ultrasonic ranging modules, distance measurement devices, obstacle detection systems, robot sensors, parking assistance systems, smart equipment, automation control, liquid level detection, security devices, and IoT sensing products.
It is suitable for OEM and ODM projects that require a compact 40kHz ultrasonic sensor with high sound pressure level, aluminum housing, and stable transmitting performance.
Working Principle
The ultrasonic transmitter converts an electrical drive signal into ultrasonic acoustic waves at 40kHz. In a complete ranging system, the transmitted ultrasonic wave reflects from the target object and is received by a matching receiver.
The control circuit calculates distance by measuring the time between ultrasonic transmission and echo reception. This time-of-flight method is widely used in distance measurement, obstacle detection, and level sensing applications.
Design and Integration Notes
For best performance, drive the sensor near its 40kHz center frequency and pair it with a compatible ultrasonic receiver. The drive voltage should stay within the specified maximum input voltage.
The acoustic path should remain clear, and the sensor should face the target surface directly. Target shape, surface angle, material, temperature, humidity, airflow, and circuit design can affect detection distance and measurement accuracy.
Because this model is a transmitter, it should be selected together with a suitable receiving transducer or ultrasonic sensor module when building a complete ranging system.
Why Choose This 10mm 40kHz Ultrasonic Sensor
The MSO-A1040H07T combines compact 10×7mm size, 40kHz frequency, high sound pressure output, aluminum housing, and wide detectable range. It provides a practical ultrasonic transmitting solution for compact distance measurement and object detection products.
Its standard 40kHz frequency and transmitter-type design make it easy to integrate into many ultrasonic ranging circuits, sensor modules, and industrial or consumer electronic systems.
FAQ
What is this 10mm 40kHz ultrasonic sensor used for?
It is used for ultrasonic distance measurement, object detection, obstacle avoidance, parking sensors, robotics, liquid level detection, automation equipment, and smart sensing devices.
Is this ultrasonic sensor a transmitter or receiver?
This model is specified as a transmitter. It emits ultrasonic waves and is typically used with a matching receiver in a complete distance measurement system.
How does a 40kHz ultrasonic sensor measure distance?
The transmitter emits a 40kHz ultrasonic pulse, and a receiver detects the reflected echo. The controller calculates distance from the echo return time and the speed of sound.
What is the detectable range of this ultrasonic transducer?
The specified detectable range is 0–1200cm. Actual range depends on the target size, surface angle, material, circuit design, and environmental conditions.
How should I choose a matching ultrasonic receiver?
Choose a receiver with a compatible center frequency, sensitivity, capacitance, package size, directivity, and operating environment. Matching the transmitter and receiver helps improve echo detection stability.
What affects ultrasonic sensor performance?
Performance can be affected by drive voltage, frequency matching, target surface, sound path, temperature, humidity, airflow, mounting structure, electrical noise, and receiver circuit design.