What are the specifications of ultrasonic sensor?

What are the specifications of ultrasonic sensor?

HC-SR04 vs Seeed Grove Ultrasonic Distance Sensor

Grove – Ultrasonic Distance Sensor HC-SR04
Working Voltage 3.3V / 5V compatible Wide voltage level: 3.2V – 5.2V 5V
Measurement Range 3cm – 350cm 2cm – 400cm
I/O Pins needed 3 4
Operating Current 8mA 15mA

What is the accuracy of the ultrasonic sensor HC-SR04?

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.

Can ultrasonic sensor work with 3.3 V?

In my experience these sensors do not work well at 3.3V. They need 5V to work properly. You can trigger them with a 3.3V output, and you can put a resistor divider on the module output to drop 5V to 3.3V (for the Pi input).

What is the maximum distance that the ultrasonic sensor can detect an object?

Ultrasonic sensors are suitable for close range detection up to ten meters and provide multiple range measurements per second.

What is the max range of a ultrasonic sensor?

What is the limitation of ultrasonic sensor?

Some common disadvantages of conventional ultrasonic sensors include limited testing distance, inaccurate readings, and inflexible scanning methods. All of these drawbacks, however, can be mitigated and even overcome with the right NDT tools and techniques.

What kind of waves does the ultrasonic sensor work on?

Ultrasonic sensors transmit acoustic waves of a frequency between 25 and 50 kHz, always above the human hearing range.

What should I avoid with ultrasonic level sensors?

Following are the top 10 mistakes for ultrasonic sensors and tips to avoid making them.

  • Inappropriate application.
  • Poor mounting angle.
  • Chemical incompatibility.
  • Choosing an ultrasonic level sensor with an adequate sensing range.
  • Not using shielded cable.
  • Improper cable routing.
  • Poor quality power source.

Why do ultrasonic sensors have limited range?

Environmental influences on the 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.

How can I make my HC SR04 more accurate?

The HC-SR04 sensor provides 2cm to 400cm non-contact measurement function. You have at least one option to increase the measurement range of the sensors. The method that increases the range is using a parabolic dash to reduce the ‘field of view’ (FOV) of the basic sensor.

Can ultrasonic sensor detect 360 degrees?

Most use ultrasonics to navigate around objects that are successfully detected by ultrasonic transducers. Multiple transducers give these devices a full 360-degree view, allowing them to easily navigate even the most complex rooms.

Can we increase the range of ultrasonic sensor?

You can just amplify more the signal. This will increase the range. But also will make it more suitable for noise. For better results you may need a sensor with a better gain.

What is the maximum range of the ultrasonic sensor?

How precise are ultrasonic sensors?

Summary on Accuracy The more accurate ultrasonic sensors can achieve 0.1 – 0.2% of the detected range under perfectly controlled conditions, and most good ultrasonic sensors can generally achieve between 1% and 3% accuracy.

  • August 24, 2022