MB7489-511

Ultrasonic sensors are sensors that use ultrasonic waves to measure physical quantities. Ultrasonic receivers, transmitters, and MB7489-511 are among the many ultrasonic sensor types available. This article will explore the application field and working principle of MB7489-511.

Application Field of MB7489-511

The MB7489-511 is a high-end ultrasonic transmitter and receiver critically designed for excellent sound quality. This device is used in a variety of applications, including medical, automotive, robotics, and machine vision.

• Medical – The MB7489-511 is utilized in medical applications to measure patient vital signs, such as heart beat and respiration rate.
• Automotive – This device is used in automotive applications to measure the distance between a vehicle and nearby obstacles.
• Robotics – This device is used in robotic applications to analyze object movements and estimate distance and speed.
• Machine vision – MB7489-511 can be used in machine vision applications to detect object shapes and size to improve robotic motion.

Working Principle of MB7489-511

The MB7489-511 uses a high-frequency ultrasonic transmitter and receiver module to measure physical quantities. To emit an ultrasonic wave, electricity is converted to an acoustic wave through the ultrasonic transmitter. After the sound wave is emitted, it is reflected off of an object and received by the ultrasonic receiving transducer. The received wave is then converted to an electrical signal. By analyzing the change in electric current, the distance, speed, and other parameters of an object can be determined.

Transmitter Working Principle

When electricity is converted to acoustic waves, electromagnetic energy is released in a pulse wave rebound form. The acoustic energy of this pulse wave reverberation causes the piezoelectric element of the transmitter to vibrate. The vibration frequency of the piezoelectric element is large enough for it to be heard as a sound wave in the ultrasonic wave range.

Receiver Working Principle

When the ultrasonic wave reflects off of an object and is received by the ultrasonic receiving transducer, the transducer converts the received wave into electric signals. A differential amplifier circuit is then used to amplify the received wave and a pulse width demodulator is used to convert the amplified wave into an electrical signal of a certain width, which is proportional to the distance of the object. This distance information is then sent to a microcontroller for analysis.

Conclusion

The MB7489-511 is a high-end ultrasonic receiver and transmitter designed for excellent sound quality. It is used in a variety of applications, such as medical, automotive, robotics, and machine vision. This device uses a high-frequency ultrasonic transmitter and receiver module to measure physical quantities. The ultrasonic wave emitted by the transmitter is reflected off of objects and then received by the receiver and converted to an electrical signal. By analyzing the changes in the electric current, the distance, speed, and other parameters of an object can be determined, making the MB7489-511 an important tool for many applications.