Causes of Blind Zones‌

1. ‌Signal Propagation Delay‌
   • The sensor cannot detect objects during the brief interval between transmitting and receiving ultrasonic pulses.
2. ‌Beam Angle Limitations‌
   • The ultrasonic beam’s divergence angle creates coverage gaps at close ranges, reducing detection accuracy.
3. ‌Surface Reflectivity Variability‌
   • Materials with low reflectivity (e.g., porous or absorbent surfaces) may scatter or dampen signals, exacerbating blind zone effects.

‌Effective Solutions‌

1. ‌Optimal Sensor Placement‌
   • Install the sensor away from container walls to minimize interference.
   • Adjust mounting height to position the blind zone outside critical measurement ranges.
2. ‌Multi-Sensor Integration‌
   • Deploy multiple sensors at complementary angles to expand coverage and reduce blind spots.
   • Enhance reliability through ‌data fusion techniques‌ to synthesize measurements from multiple sources.
3. ‌Advanced Signal Processing‌
   • Implement noise reduction, filtering, and signal amplification algorithms to improve signal clarity.
   • Machine learning models can distinguish valid echoes from background noise, minimizing blind zone impact.
4. ‌High-Performance Hardware Selection‌
   • Prioritize sensors with ‌high-frequency, narrow-beam, and high-power transmitters‌ for superior precision and penetration.
   • Example: Sensors operating at 200 kHz reduce beam spread compared to 50 kHz models.
5. ‌Environmental Calibration‌
   • Account for temperature, humidity, and pressure variations during installation.
   • Use sensors with built-in temperature compensation to maintain accuracy in fluctuating conditions.