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DFRobot

$70.10 |
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This is an ultrasonic distance sensor(ULS) of high performance with an enclosed waterproof probe. The sensor, like many other ultrasonic sensors, based on th...

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This is an ultrasonic distance sensor(ULS) of high performance with an enclosed waterproof probe. The sensor, like many other ultrasonic sensors, based on the principle of ultrasonic echo ranging, determines the distance to a target by measuring time lapses between the sending of a pulse and receiving of the echo without contacting. It can be used to detect transparent or non-ferrous objects, metal or non-metallic objects, liquid, solid, powder materials and so on. The unique physical bell-mouth shell of the sensor greatly improves the directivity and stability of its output ultrasound.

There are two output modes for the sensor: RS232 output and voltage analog output. The default mode of the product is RS232 output, and it can be changed through the button

Note: the internal probe surface is regarded as the detecting starting point by default. If you take the plane of the bell-mouth as starting point, then the distance will be the detected distance minus 40mm.

ULA Beam Directionalities Diagram

Dimension Diagram

FEATURES

  • High Degree of Protection
  • Wide Power Supply Range, Low Power Consumption
  • High Measuring Accuracy and Resolution
  • High-Precision Temperature Output and Temperature Compensation Function
  • Great Output Compatibility: Standard RS232 Output and Voltage Analog Output

SPECIFICATION

  • Supply Voltage: 5V~12V
  • Center Frequency: 40KHZ
  • Operating Current: average current <10mA (based on power supply: 5V; duty cycle: 250ms)
  • Blind Zone: 270mm
  • Detection Distance   RS232 Mode: Blind Zone: 270mm   Maximum Detection Distance: 8000mm Analog Mode: Blind Zone: 270mm  Maximum Detection Distance can be got by calculation through   through programs(output voltage 3.3V)
  • Resolution: 1mm
  • Operating Temperature: -15℃-60℃
  • Storage Temperature: -25℃-80℃

DOCUMENTS

Jargon buster

Plain-language definitions for the technical terms used above.

duty cycle
The fraction of time a signal or power source is switched on during each repeating on/off cycle, usually given as a percentage. It is central to PWM (pulse-width modulation), where adjusting the duty cycle controls things like LED brightness, motor speed or heater power, and on devices such as proximity sensors it can also affect detection range, response speed, accuracy and power use.
Temperature compensation
Temperature compensation is when a sensor or instrument adjusts its readings to reduce errors caused by changes in temperature. This matters because a sensor's raw output often drifts as conditions warm or cool, so compensation keeps readings more consistent and accurate over time.

Supplier page — dfrobot.com

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