Ultrasonic Signal Detection
With the advancement of AI technologies, the value of MEMS microphones has been greatly amplified. They are no longer merely acoustic sensors but have become essential components of intelligent systems, driving a wide range of innovative applications. 3S MEMS microphones support ultrasonic sensing from 20 kHz to 90 kHz, enabling broader application scenarios:
- Pipeline leakage and fault detection
- Obstacle avoidance (e.g., robotic navigation)
- Parking assistance and auto-parking
- Proximity-based wake-up (e.g., auto wake-up when approaches, sleep mode when walking away)
- Abnormal sound monitoring in industrial equipment (e.g., noise analysis and fault diagnosis for motors, transformers, and bearings)
Selection Guide
Consistency in frequency response and sensitivity of MEMS microphones is critical in ultrasonic applications, as it allows designers to perform one-time calibration and compensation.
Consistency in frequency response and sensitivity of MEMS microphones is critical in ultrasonic applications, as it allows designers to perform one-time calibration and compensation.
| IC Name | Description | Descriptions | Port Location |
| 3SM421LZB1AA | Analog Differential | 3.35 x 2.50 x 0.98mm | Bottom |
| 3SM422KMB1HA-P | Digital | 3.50 x 2.65 x 0.98mm | Bottom |