ISU55.5-15.5TRAO
55.5kHz ultrasonic ranging transducer for safe obstacle avoidance when reversing in automobiles
Ultrasonic Transducer, Waterproof, Integrated Design, High Sensitivity, Automotive Safety, Collision Avoidance, Low Noise Ratio, Lightweight, Reliable Operation
The ISU55.5-15.5TRAO is a specialized 55.5kHz Ultrasonic Transducer (Probe) featuring a robust aluminum housing. Operating at a higher frequency than standard 40kHz sensors, it offers superior short-range detection and a faster response time with reduced blind zones. Its asymmetric beam (95° H / 50° V) makes it ideal for precision reversing radars and robotic navigation in complex environments. (Note: This is a raw component and requires an external driving circuit to operate.)
Designed for reliability and integration, the transducer features a waterproof and sealed structure that ensures durability even in challenging outdoor conditions. The unique 55.5kHz center frequency delivers a high signal-to-noise ratio and sharper resolution, providing the precise measurements essential for vehicular safety. Its compact, lightweight design allows for flexible integration into collision avoidance systems, ensuring a safer driving experience by accurately detecting obstacles that standard low-frequency sensors might miss.
Specification
| Test Item | Test Conditions | Test Standards | Remarks |
|---|---|---|---|
| Center Frequency (kHz) | Room temperature 25±3 (℃) | 55.5±1 | Frequency scanner |
| Capacitance (pF) | 1 kHz; 25±3℃ | 1500±20% | LCR digital bridge |
| Angle (°) | Room temperature 25±3 (℃), probe height 60 cm, distance to detection object 60 cm, detection object is Ф75mm PVC pipe, pipe height 1m, test environment requires no obstacles within 2m radius, tested as per Fig.1 | X-axis Direction: 105±10 (°) Y-axis Direction: 55±10 (°) |
Mainboard No: KM/K00655.5001 |
| Residual Vibration (ms) | Room temperature 25±3 (℃), simulated test mainboard, readings as shown in Fig.2 | 0.9ms ≤ Residual Vibration ≤ 1.5ms | Mainboard No: KM/K05655.5001 |
| Echo Sensitivity (us) | Room temperature 25±3 (℃), distance: 0.8m, obstacle: Ф75mm*1000mm PVC pipe, readings as shown in Fig.2 | Comparison lower limit sample (reference value ≥240) | Mainboard No: KM/K05655.5001 |
| Sensitivity (dB) | Transmission frequency: (55.5±1) kHz 0dB=10V/Pa | -81 | Reference value |
| Sound Pressure (dB) | Distance: 30cm, input voltage: 10Vrms 0dB=2x10^5Pa | ≥108 | Reference value |
| Maximum Driving Voltage (Vp-p) | Pulse width 0.8ms, interval 60ms | 150 | Oscilloscope reference |
| Working Temperature (℃) | -40 to +85 (℃) | Qualified | High and low temperature chamber |
| Storage Temperature (℃) | -40 to +85 (℃) | Qualified | High and low temperature chamber |
External dimensions / Test waveform diagram
Typical Applications
Delivering precision where standard sensors imply uncertainty, the ISU55.5-15.5TRAO is engineered for critical safety applications. In the automotive sector, it serves as a high-fidelity reversing radar sensor, detecting obstacles with finer resolution to assist drivers in tight parking spots. This high-frequency precision transfers seamlessly to robotics, acting as a responsive "electronic bumper" for AGVs and delivery bots navigating narrow aisles. Furthermore, its rugged aluminum design enables reliable distance monitoring in industrial automation and smart city infrastructure, ensuring consistent performance even in challenging outdoor conditions.