Το προϊόν δεν
είναι πλέον διαθέσιμο |
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Χαρακτηριστικά προιόντος:
Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm.
The modules includes ultrasonic transmitters, receiver and control circuit.
The basic principle of work:
(1) Using IO trigger for at least 10us high level signal,
(2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
(3) IF the signal back, through high level , time of high output IO duration is the time from sending ultrasonic to returning.
Test distance = (high level time×velocity of sound (340M/S) / 2,
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Προδιαγραφές |
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Working voltage: |
5V |
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Working Current: |
15mA |
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Working Frequency: |
40Hz |
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Max Range: |
4m |
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Min Range: |
2cm |
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Measuring Angle: |
15 degree |
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Rectifier: |
Non-Synchronous Rectification |
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Trigger Input Signal: |
10uS TTL pulse |
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Echo Output Signal: |
Input TTL lever signal and the range in proportion |
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Size： |
45*20*15mm |
| Eπιπρόσθετες φωτογραφίες: |
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