Description
electronicsUltrasonic sensors use sound to determine the distance between the sensor and the closest object in its path. How do ultrasonic sensors do this ?Ultrasonic sensors are essentially sound sensors,but they operate at a frequency above human hearing. The HCSR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent noncontact range detection with high accuracy and stable readings in an easytouse package. Its operation is not affected by sunlight or black material like sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with ultrasonic transmitter and receiver module.
These sensing abilities make it particularly useful for robots that need to know how far they are away from an object or obstacle, for example, a wall or a piece of furniture that they shouldn’t hit.
Technical Specification:
- Working Voltage: DC 5V
- Working Current: 15mA
- Working Frequency: 40Hz
- Max Range: 4m
- Min Range: 2cm
- Measuring Angle: 15 degree
- Trigger Input Signal: 10µS TTL pulse
- Echo Output Signal Input TTL lever signal and the range in proportion
- Dimension 45 * 20 * 15mm
Features:
- Measures the distance within a wide range of 2cm to 400cm
- Stable performance
- Accurate distance measurement
- High-density
- Small blind distance
Pin Description:
Applications:
- Robotics barrier
- Object distance measurement
- Level detection
- Security systems
- Vehicle detection/avoidance
- It is used in wireless charging
- Medical ultrasonography
- Depth measurement
- Humidifiers
- This sensor is used to plot the objects nearby the sensor by revolving it
- Non-destructive testing
- By using this sensor depth of pits, wells can be measured by transmitting the waves through water
- Embedded system
- Burglar alarms