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An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal.

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sensor is a device that measures physical input from its environment and converts it into data that can be interpreted by either a human or a machine. Most sensors are electronic (the data is converted into electronic data), but some are more simple, such as a glass thermometer, which presents visual data

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Joury
ultrasonic sensors are devices that generate or sense ultrasound energy. They can be divided into three broad categories: transmitters, receivers and transceivers.

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Noor atout
As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception

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As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception.

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An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear)

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Ultrasonic sensors measure distance by using ultrasonic waves

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ultrasonic sensors measure distance by using ultrasonic waves.

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ultrasonic sensors measure distance by using ultrasonicwaves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target

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An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic waves, and converts the reflected sound into an electronic signal. Ultrasonic waves travel faster than the speed of audible sound ( i.e. the sound that humans can hear ).

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Ultrasonic sensors are used primarily as proximity sensors. They can be found in automobile self-parking technology and anti-collision safety systems. Ultrasonic sensors are also used in robotic obstacle detection systems, as well as manufacturing technology. In comparison to infrared (IR) sensors in proximity sensing applications, ultrasonic sensors are not as susceptible to interference of smoke, gas, and other airborne particles (though the physical components are still affected by variables such as heat).  

Ultrasonic sensors are also used as level sensors to detect, monitor, and regulate liquid levels in closed containers (such as vats in chemical factories). Most notably, ultrasonic technology has enabled the medical industry to produce images of internal organs, identify tumors, and ensure the health of babies in the womb.

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Ultrasonic sensor HC-SR04 is used to measure distance to an object by using ultrasonic waves. The ultrasonic sensor HC-SR04 includes four pins:

VCC pin.

GND pin.

TRIG pin: this pin receives a 10-microsecond pulse from controller to emit ultrasonic wave.

ECHO pin: this pin outputs a pulse when receiving echo ultrasonic wave. The duration of pulse is used to calculate the distance.

How the ultrasonic sensor works:

If receiving 10-microsecond pulse on TRIG pin , ultrasonic sensor automatically emits 40KHz ultrasonic wave.

If there is an obstacle, ultrasonic wave is reflected back.

Ultrasonic sensor measures duration of time from emiting ultrasonic wave to receiving the echo ultrasonic wave. And then ultrasonic sensor generate a pulse with the measured duration on ECHO pin.

How to use ultrasonic sensor:

Connect TRIG pin of ultrasonic sensor to HT0 pin of PHPoC device. Set HT0 timer to "ouput pulse" mode.

Connect ECHO pin of ultrasonic sensor to HT1 pin of PHPoC device. Set HT1 timer to "capture" mode.

Use HT0 timer to generate 10-microsecond pulse.

Use HT2 timer to capture the pulse from ECHO pin.

Calculate distance based on the duration of captured pulse. The duration of pulse is the travel time of ultrasonic wave. Travel speed of ultrasonic wave is about 340 m/s. Travel distance is calculated according to the formula: distance = speed * time

Distance to obstacle is half of the travel distance of ultrasonic wave.

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ultrasonic sensors are characterized by their reliability and outstanding versatility. Ultrasonic sensors can be used to solve even the most complex tasks involving object detection or level measurement with millimetre precision, because their measuring method works reliably under almost all conditions.

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An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves and converts the reflected sound into an electrical signal .

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ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear). Ultrasonic sensors have two main components: the transmitter (which emits the sound using piezoelectric crystals) and the receiver (which encounters the sound after it has travelled to and from the target)

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Qatralnada Abduljabbar
An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound ( i.e. the sound that humans can hear ).

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What is an ultrasonic sensor?

An ultrasonic sensor is an instrument that measures the distance to an object using ultrasonic sound waves.

An ultrasonic sensor uses a transducer to send and receive ultrasonic pulses that relay back information about an object’s proximity.

High-frequency sound waves reflect from boundaries to produce distinct echo patterns.

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An ultrasonic sensor emits sound waves toward an object and determines its distance by detecting reflected waves.

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As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception.

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What does an ultrasonic sensor do?
As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception

What is ultrasonic sensor and how it works?
An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear)

What type of sensor is an ultrasonic sensor?
ultrasonic / level sensors measure the distance to the target by measuring the time between the emission and reception. An optical sensor has a transmitter and receiver, whereas an ultrasonic / level sensor uses a single ultrasonic element for both emission and reception

# data[].attributes.body
An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear). Ultrasonic sensors have two main components: the transmitter (which emits the sound using piezoelectric crystals) and the receiver (which encounters the sound after it has travelled to and from the target).