Product Overview
The YUJIE KQ-112KH ultrasonic transducer operates at 112kHz and combines transmit and receive sensitivity in a compact cylindrical package. With IP65 sealing, 7-meter range, and robust -20°C to 70°C operating window, it integrates into automation control systems, robotics platforms, and proximity detection setups without demanding complex environmental management.
Technical Specifications
| Parameter |
Specification |
| Operating Frequency |
112kHz ± 4% |
| Detection Range |
15cm ~ 7m (Pulse-Echo Mode) |
| Min. Transmit Sensitivity |
107dB re 1μPa/V at 1m |
| Min. Receive Sensitivity |
-170dB re 1V/μPa |
| Parallel Resistance |
420Ω ± 30% |
| Free (1kHz) Capacitance |
1000pF ± 200pF |
| Beam Width (-3dB) |
12° ± 2° (full angle) |
| Max Driving Voltage |
800Vpp (2% duty cycle tone burst) |
| Operating Temperature |
-20°C to 70°C |
| Waterproof Rating |
IP65 |
| Weight |
14g |
| Housing Material |
Glass filled polyester |
Key Benefits
- Transmit & Receive in One Unit — High transmit sensitivity of 107dB paired with -170dB receive sensitivity enables reliable detection across the full 15cm to 7m range
- Automation-Ready 112kHz — Operating frequency chosen for compatibility with common industrial drive circuits and signal processing routines
- Robotics Integration — Compact cylindrical form factor at 14g mounts easily in robotics frames; IP65 rating handles workshop dust and occasional washdown
- 800Vpp Drive Compatibility — Handles standard industrial drive levels (2% duty cycle tone burst) without requiring specialized high-voltage circuitry
- Signal Processing Friendly — 1000pF capacitance and 420Ω resistance values align with typical microcontroller ADC and timer-based measurement approaches
Applications
- Automation Control Systems
- Robotics Navigation & Obstacle Avoidance
- Proximity Sensing
- Industrial Level Monitoring