{"id":8021,"date":"2026-07-14T17:37:09","date_gmt":"2026-07-14T09:37:09","guid":{"rendered":"https:\/\/issrsensor.com\/?p=8021"},"modified":"2026-07-14T17:45:51","modified_gmt":"2026-07-14T09:45:51","slug":"agv-ultrasonic-obstacle-avoidance-blind-zone-crosstalk-frequency","status":"publish","type":"post","link":"https:\/\/issrsensor.com\/ar\/agv-ultrasonic-obstacle-avoidance-blind-zone-crosstalk-frequency\/","title":{"rendered":"AGV Ultrasonic Obstacle Avoidance Guide: Choosing 40kHz \/ 48kHz \/ 55.5kHz, Blind Zone, Beam Angle & Crosstalk"},"content":{"rendered":"\n

1. Introduction: Why Frequency + Blind Zone + Crosstalk Decide AGV Obstacle-Avoidance Reliability<\/h2><\/div>\n\n\n\n
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For AGVs, “seeing an obstacle” isn’t enough\u2014what matters is whether the system can detect it early and consistently, especially in the near field where the safety margin is smallest. In practice, obstacle avoidance performance is often limited less by the sensor’s headline range, and more by three fundamentals:<\/p>\n \n

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  1. Working frequency<\/strong> (e.g., 40 kHz, 48 kHz, 55.5 kHz)<\/li>\n
  2. Blind zone<\/strong> (the minimum distance where reliable detection may be unavailable)<\/li>\n
  3. Crosstalk \/ mutual interference<\/strong> (how multiple ultrasonic devices can disturb each other)<\/li>\n <\/ol>\n \n

    Choosing the right frequency affects not only echo characteristics and signal-to-noise behavior, but also how well the system supports stable detection under real conditions such as varied target surfaces, installation geometry, and dynamic motion. That is why designers compare options like 40kHz<\/a>, 48kHz<\/a>, 55.5kHz<\/a> and 58kHz<\/a> ultrasonic waterproof transducer automotive reversing radar when they need reliable obstacle detection for different distance and coverage requirements.<\/p>\n<\/div>\n\n\n\n