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HC-SR04

ETC 1
Part Number HC-SR04
Manufacturer ETC 1
Description Ultrasonic Sensor User Guide
Published Jun 7, 2019
Detailed Description HC-SR04 User Guide 1. Ultrasonic Distance Measurement Principles The transmitter emits a 8 bursts of an directional 40KH...
Datasheet PDF File HC-SR04 PDF File

HC-SR04
HC-SR04

Overview
HC-SR04 User Guide 1.
Ultrasonic Distance Measurement Principles The transmitter emits a 8 bursts of an directional 40KHz ultrasonic wave when triggered and starts a timer.
Ultrasonic pulses travel outward until they encounter an object, The object causes the the wave to be reflected back towards the unit.
The ultrasonic receiver would detect the reflected wave and stop the stop timer.
The velocity of the ultrasonic burst is 340m/sec.
in air.
Based on the number of counts by the timer, the distance can be calculated between the object and transmitter The TRD Measurement formula is expressed as: D = C X T which is know as the time/rate/distance measurement formula where D is the measured dist...


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