Ultrasonic Sensor Kya Hai? Aur Ye Kaise Kaam Karta Hai? | Electronics Blog
Aaj ke is blog me hum baat karenge ek aise sensor ki jo distance measure karne me sabse jyada use hota hai – Ultrasonic Sensor. Ye sensor robotics, obstacle detection, smart gadgets, aur industrial automation me kaafi useful hai.
Ultrasonic Sensor Kya Hota Hai?
Ultrasonic sensor ek distance measuring sensor hota hai jo sound waves (ultrasonic waves) ke through kaam karta hai. Ye sensor human ear ke sunne ki limit se bhi upar frequency (generally 40kHz) par sound waves emit karta hai.
Ye sensor mainly do parts me divided hota hai:
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Transmitter (Trigger Pin) – Ye ultrasonic waves bhejta hai.
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Receiver (Echo Pin) – Ye reflected waves receive karta hai.
⚙️ Ultrasonic Sensor Ka Working Principle
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Trigger pin short ultrasonic burst fire karta hai.
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Ye sound wave kisi object tak jaake wapas reflect hoti hai.
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Echo pin reflected wave ko detect karta hai.
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Sensor time calculate karta hai ki wave bhejne aur wapas aane me kitna time laga.
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Formula lagta hai:
Popular Model – HC-SR04
Most commonly used ultrasonic sensor ka model hai HC-SR04. Iske 4 pins hote hain:
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VCC – Power Supply (5V)
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GND – Ground
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Trigger – Signal send karne ke liye
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Echo – Signal receive karne ke liye
🛠️ Applications of Ultrasonic Sensor
✅ Obstacle Avoiding Robot
✅ Level Measurement (Water, Grain)
✅ Parking Assistant Systems
✅ Home Automation Projects
✅ Blind Stick for Visually Impaired
🧠 Arduino ke Sath Ultrasonic Sensor Ka Use
Aap Arduino ke saath is sensor ko easily connect kar sakte ho. Sirf 4 jumper wires ki help se ye kaam karta hai. Humne obstacle avoiding car project me bhi iska use kiya tha (link niche blog me de sakte ho).
📝 Conclusion
Ultrasonic sensor ek smart aur affordable option hai distance measurement ke liye. Chahe aap beginner ho ya expert, ye sensor har project me value add karta hai. Aap ise Arduino, Raspberry Pi ya kisi bhi microcontroller ke sath use kar sakte ho.
Agar aapko ye blog pasand aaya ho to share karna na bhoolen. Aur naye electronics blogs ke liye hamare website ko bookmark karein.
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