2cm to 400cm.
This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit.
What is the range of HC-SR04 ultrasonic sensor detection?
2 cm to 400 cm
The HC-SR04 ultrasonic sensor uses SONAR to determine the distance of an object just like the bats do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package from 2 cm to 400 cm or 1 to 13 feet.
What is the maximum range can the HC-SR04 sensor can detect?
HC-SR04 Hardware Overview
| Operating Voltage | DC 5V |
|---|---|
| Max Range | 4m |
| Min Range | 2cm |
| Ranging Accuracy | 3mm |
| Measuring Angle | 15 degree |
What is the maximum range of ultrasonic sensor?
They DO NOT measure farther than about 70 feet (21 meters). They DO NOT measure at very high repetition rates. Due to speed of sound limitations the fastest rate is 200 Hz at a max distance of about 24 inches.
What is range of ultrasonic sensor?
Ultrasonic sensors are suitable for close range detection up to ten meters and provide multiple range measurements per second.
What does HC-SR04 stands for?
Introduction to HC-SR04 ( Ultrasonic Sensor )
| Parameter | Value |
|---|---|
| Operating Frequency | 4 MHz |
| Detection Range | 2cm to 400cm |
| Measuring Angle | 30? |
| Resolution | 3mm |
What is the maximum range of an object does the ultrasonic sensor can detect in terms of centimeters?
The Ultrasonic Ranging Concept
At 58 kHz, a commonly used frequency, the measurement resolution is one centimeter (cm), and range is up to 11 meters. At 300 kHz, the resolution can be as low as one millimeter; however, range suffers at this frequency with a maximum of about 30 cm.
Why do ultrasonic sensors have a limited range?
There is more suppression of sound in a rising temperature and air humidity or a decreasing air pressure. As a result of this the detection range gets smaller, because the echo clearly has more difficulty to move through the air.
What are the 4 pins of the HC-SR04?
The HC-SR04 Ultrasonic sensor comes with four pins namely Vcc pin, Trigger pin, Echo pin, & Ground pin. This sensor is used to measure the accurate distance between the target and the sensor. This sensor mostly works on the sound waves.
How many types of ultrasonic sensors are there?
All together there are four types of ultrasonic sensors, classified by frequency and shape: the drip-proof type, high-frequency type, and open structure type (lead type and SMD type).
What are the applications of ultrasonic sensor?
Ultrasonic sensors have been used throughout many applications and industries. They are used within food and beverage to measure liquid level in bottles, they can be used within manufacturing for an automated process and control maximising efficiency on the factory floor.
How do ultrasonic sensors measure distance?
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 HC-SR04?
The HC-SR04 Ultrasonic Distance Sensor is a sensor used for detecting the distance to an object using sonar.The HC-SR04 uses non-contact ultrasound sonar to measure the distance to an object, and consists of two ultrasonic transmitters (basically speakers), a receiver, and a control circuit.
What is technical name of ultrasonic sensor?
The ultrasonic sensor (or transducer) works on the same principles as a radar system.Typically, a microcontroller is used for communication with an ultrasonic sensor. To begin measuring the distance, the microcontroller sends a trigger signal to the ultrasonic sensor.
Is HC-SR04 waterproof?
However, using the HC-SR04 outside is a different story. It is a pretty fragile device and can easily be damaged by dirt, or even high winds. And, above all, it is not waterproof.
What are distance sensors used for?
As their name suggests, distance sensors are used for determining the distance of an object from another object or obstacle without any physical contact involved (unlike a measuring tape, for example).
What is ultrasonic level measurement?
As the name indicates, ultrasonic / level sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. ultrasonic / level sensors measure the distance to the target by measuring the time between the emission and reception.
Why is proximity sensor used?
A proximity sensor is a device that can detect or sense the approach or presence of nearby objects and for this it does not need physical contact. There are different kinds of proximity sensors. Some of them are listed [8]: Inductive: This type of sensor is used to detect nearby metallic objects.
How many pins are present in ultrasonic sensor?
This is a very simple and useful ultrasonic sensor. There are four pins that you would use to interface with the sensor: VCC, Trig (signal output pin), Echo (signal input pin), and GND. Each of the four pins are connected to the Arduino: VCC to 5v, Trig to a digital pin, Echo to a digital pin, and GND to GND (ground).
What is an example of an ultrasonic sensor?
For example, ultrasonic sensors can detect cars in adjacent lanes for blind spot detection and alert human drivers if a car is in their blind spot.
Who invented ultrasonic sensors?
It was used in Glasgow by an Obstetrician named Ian Donald and an engineer named Tom Brown. These two men developed the first prototype system for ultrasound, but it wasn’t perfected until the end of the 1950s.
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