Description
- Component Type: Raw Ultrasonic Transducer Pair (1 Transmitter, 1 Receiver)
- Diameter: 10mm
- Size: 10x07mm
- Center Frequency: 40.0 ± 1.0 kHz
- Bandwidth: 2.0 kHz (-6dB)
- Sound Pressure Level (Tx): ≥ 112dB (at 10Vrms, 30cm)
- Sensitivity (Rx): ≥ -70dB (at 40kHz)
- Capacitance: 2000pF ± 20%
- Housing Material: Aluminum (Open Type – Indoor Use)
- Directivity (Beam Angle): ~60° to 80°
- Operating Temperature: -20°C to +70°C
Applications
- Micro-Robotics: Ideal for “Sumo” or “Micro-Mouse” robots where every millimeter of frontal area counts.
- Custom PCB Integration: Embed distance sensing directly into your motherboard instead of using daughter boards.
- Liquid Level Sensing: Non-contact measurement for small tanks or dispensers.
- Object Detection: Invisible “tripwire” security systems.
- Gesture Control: Create short-range hand wave interfaces.
Project Evolution:
From Module User to Circuit Designer
- Prerequisites (The Past): You have likely mastered the HC-SR04 Module. You know how to use trigger and echo pins, but you are limited by the module’s physical size and fixed gain.
- The Upgrade (This Product): The 10mm Transducer Pair unlocks Custom Acoustic Design. By building your own amplification and driving circuit (using Op-Amps like LM358 or specific driver ICs), you can adjust the gain, pulse width, and sensitivity to suit your specific environment.
- Effort Level: Advanced. Requires knowledge of analog electronics (Op-Amps, Signal Filtering).
- Minimum Hardware: You will need an oscillating circuit (to drive the Tx) and an amplifier circuit (to read the Rx).
Wiring & Safety Guide
Identification:
- T (Transmitter): Usually marked with a ‘T’ on the underside. This unit sends the pulse.
- R (Receiver): Marked with an ‘R’. This unit listens for the echo.
Warning: While the transducers can handle up to 20Vrms pulses for maximum range, most logic-level circuits drive them at 5V or 12V. Do not connect directly to a microcontroller pin without a driver transistor or buffer, as the current draw and capacitive load can damage the MCU.
Package Includes:
- 1 x Ultrasonic Transmitter (Tx) 10mm
- 1 x Ultrasonic Receiver (Rx) 10mm
Explore more from our collection.
Reviews
There are no reviews yet.