In this week am planning to go to Jalan Pasar to search for some sensors
and at the same time to take a look at other component that it might help me in
my project.
I got in mind some sensors to search about it like (ultrasonic
,Infrared, proximity sensors and others same like I mentioned before in week 5).
Location of Jalan Pasar :
Once I have reached there I found there is some differences between my
research and the reality of the market ,the shops that I have visited they
don’t have a lot of information about the sensors that I have requested, so I
had to risk and take a sensor and later on I can do some tests and by then I
can know whether it is suitable for my project or not
I bought ultrasonic sensor
(RK 1089) RM25 …
And here are some finding for (RK 1089):
40KHz Ultrasonic Transducer
Transmitter and Receiver Pair. These transducers are very useful in making
various sensors for detecting obstacles and measuring distances.
Features
- Use for
motion or distance sensing
- Frequency:
40kHz ±1.0kHz
- Aluminum
case
- Capacitance:
2000pF ±20%
- Transmitter:
bandwidth 5.0kHz/100dB, sound pressure level 112dB/40 ±1.0kHz
- Receiver:
bandwidth 5.0kHz @ -75dB, min. sensitivity 67dB/40 ±1.0kHz (0dB vs. 1V
µbar) R=3.9k.
- Lead
length/spacing: 0.28"
- Case
size: 0.30"H x 0.43" Dia.
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