DataSheet26.com

HC-SR04 PDF даташит

Спецификация HC-SR04 изготовлена ​​​​«ELECFreaks» и имеет функцию, называемую «Ultrasonic User Guide».

Детали детали

Номер произв HC-SR04
Описание Ultrasonic User Guide
Производители ELECFreaks
логотип ELECFreaks логотип 

6 Pages
scroll

No Preview Available !

HC-SR04 Даташит, Описание, Даташиты
HC-SR04 User Guide
Part 1 Ultrasonic Introduction
1. 1 Ultrasonic Definition
The human ear can hear sound frequency around 20HZ ~ 20KHZ, and
ultrasonic is the sound wave beyond the human ability of 20KHZ .
1.2 Ultrasonic distance measurement principle
Ultrasonic transmitter emitted an ultrasonic wave in one direction, and started
timing when it launched. Ultrasonic spread in the air, and would return
immediately when it encountered obstacles on the way. At last, the ultrasonic
receiver would stop timing when it received the reflected wave. As Ultrasonic
spread velocity is 340m / s in the air, based on the timer record t, we can
calculate the distance (s) between the obstacle and transmitter, namely: s =
340t / 2, which is so- called time difference distance measurement principle
The principle of ultrasonic distance measurement used the already-known air
spreading velocity, measuring the time from launch to reflection when it
encountered obstacle, and then calculate the distance between the transmitter
and the obstacle according to the time and the velocity. Thus, the principle of
ultrasonic distance measurement is the same with radar.
Distance Measurement formula is expressed as: L = C X T
In the formula, L is the measured distance, and C is the ultrasonic spreading
velocity in air, also, T represents time (T is half the time value from transmitting
to receiving ).
1









No Preview Available !

HC-SR04 Даташит, Описание, Даташиты
1.3 Ultrasonic Application
Ultrasonic Application Technology is the thing which developed in recent
decades. With the ultrasonic advance, and the electronic technology
development, especially as high-power semiconductor device technology
matures, the application of ultrasonic has become increasingly widespread:
Ultrasonic measurement of distance, depth and thickness;
Ultrasonic testing;
Ultrasound imaging;
Ultrasonic machining, such as polishing, drilling;
Ultrasonic cleaning;
Ultrasonic welding;
Part 2 HC-SR04 Ultrasonic Module Introduction
2.1 Product Features
Stable performance
Accurate distance measurement
High-density
Small blind
Application Areas:
Robotics barrier
Object distance measurement
Level detection
Public security
Parking detection
2









No Preview Available !

HC-SR04 Даташит, Описание, Даташиты
2.2 Product Image
2.3Module pin definitions
Types
HC-SR04
Pin Symbol
VCC
Trig
Echo
GND
Pin Function Description
5V power supply
Trigger pin
Receive pin
Power ground
2.4Electrical parameters
Electrical Parameters
Operating Voltage
Operating Current
Operating Frequency
Farthest Range
Nearest Range
Measuring Angle
Input Trigger Signal
Output Echo Signal
Dimensions
HC-SR04 Ultrasonic Module
DC-5V
15mA
40KHZ
4m
2cm
15 Degree
10us TTL pulse
Output TTL level signal, proportional
with range
45*20*15mm
3










Скачать PDF:

[ HC-SR04.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
HC-SR04Ultrasonic Ranging ModuleELECFreaks
ELECFreaks
HC-SR04Ultrasonic User GuideELECFreaks
ELECFreaks

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск