วันพุธที่ 7 มิถุนายน พ.ศ. 2560

Transmitting and Receiving Sensor Ultrasonic Transducer 40khz(Only test)





Transmitting and Receiving Sensor Ultrasonic Transducer 40khz(Only test , For those who are interested.)

- ทดสอบการใช้  เสียงในช่วงคลื่น ultrasonic 40khz ใช้ตัวส่ง a transmitter และตัวรับ a receiver โดยสังเกตจาก led จะสว่างเมื่อได้รับ ultrasonic sound 40khz และจะดับเมื่อไม่มี ultrasonic sound 40khz (จะตอบสนองต่อคลื่นเสียงที่ 40khz เท่านั้น)
-วงจรสำหรับทดสอบ ดาวน์โหลดได้ลิงค์ด้านล่าง

*** Testing ,  a transmitter and a recevier at 40khz if a receiver can response then the green LED will light .
      On the other hand , the LED is off.

TC40-16T / R ultrasonic sensor 16mm 40khz
4 Product Performance
1 ) the nominal frequency (KHz): 40KHz
2 ) emission sound pressure at10V (0dB EQ 0.02mPa): GE 17dB
3 ) receive sensitivity at40KHz (0dB = V / ubar):GE -65dB
4 ) capacitance at1KHz, LE 1V (PF): 2000 ± 30%
5 ) detection distance (m):. 0.2 ~ 20
6) .- 6dB pointing angle : 80o
7 ) Housing material : Aluminum
8 ) Color: Silver


TC T 40 - 16 T / R 1
(TC) piezoelectric ultrasonic transducer
(T) Category : T- versatility
( 40 ) the center frequency : (KHz)
( 16 ) outer diameter : Φ (mm)
(T) usage : T- launch ; R- accepted ; TR- transceivers use either


*Eagle file and schematic and  it has a  arduino sketch file for test at 40khz)
https://drive.google.com/open?id=0BzjoxIwEMrM-SlBFS0N2akpBS00


transmitter part

transmitter  (solder diagram, red line is top view, blue line is bottom view)

bottom view
recevier part

solder view(bottom view) , recevier



charger lipo 3.7v , via regulator 5v2a ,  via ams1117(output to 3.3v and 5v)

solder view(bottom view) , charger






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