ultrasonic transceiver small size
ultrasonic transceiver small size
(OP)
Hi,
I'm trying to find a company where I can buy
small low power ultrasonic transceivers (to use in distance measurement) small as in < 10 mm
- measurement of short distances
tried google, but can't find anything
Anybody can help me
Thx in advance
Jay
I'm trying to find a company where I can buy
small low power ultrasonic transceivers (to use in distance measurement) small as in < 10 mm
- measurement of short distances
tried google, but can't find anything
Anybody can help me
Thx in advance
Jay





RE: ultrasonic transceiver small size
RE: ultrasonic transceiver small size
Search for "ultrasonic transducer"
RE: ultrasonic transceiver small size
the sensor i want to use is actually for inside the body.
CO2-gas environment, and soft tissue
are capacitive or inductive prox sensors also suitable for that? and where can i find them.
to Efp:
I'm really trying to search for sensors smallers than 10 mm
low power
thx
jay
RE: ultrasonic transceiver small size
Capacitive or inductive sensors can be used on certain non-conductive materials. This may present some problems as the medium between the plates is not air any more but human juices. I am sure they would still be feasible. I assume your going to design this from scratch. I can't help you with a company that has products for use in a human body. Some of the common mfgs of these products, for industrial uses, are Banner Engineering or Turck. I generally use the Thomas Register (online) to find specialty parts like it appears you need. Its free.
RE: ultrasonic transceiver small size
sorry but what is MFGS?
Thank you for your info, I will try Thomas Register
thx
Jay
RE: ultrasonic transceiver small size
RE: ultrasonic transceiver small size
I have one I bought from commercial company which is 16mm diameter by 10mm long for example.
http
As the case is much larger than the ceramic/piezo I have also bought commercial sensors and removed the ceramic/piezo element from the case. In general the diameter is not much smaller but the depth may only be <2mm.
At the other end of the scale I have worked for a company that manufactured ceramics and I have seen transducers as small as 1mm in diameter, however the frequency of operation was quite high. So a company can manufacture a custom one for you, or may have one in their inventory. Obviously cost and leadtime will be an issue if you take this approach. (No the company I worked for won't do it.)
Remember that the frequency that you want to operate at will affect the resolution and range. I am also not sure what are "safe" frequencies you can apply to the human body.
regards
Pete
(TurboXS)
RE: ultrasonic transceiver small size
the frequency that I want to use is around 40 kHz purely for distance measuring, so no harm to the human body,
Low power also only a small range max of 10 cm
so how big can this be? because I really want to come close about 5 mm or less in diameter.
but if I use piezo? can I use it inside a body? moist etc?
Thank you for your time
Jay
RE: ultrasonic transceiver small size
RE: ultrasonic transceiver small size
so it is NOT ultrasonic imaging
Jay
RE: ultrasonic transceiver small size
Will the transducer be outside the abdomen making measurements through the abdomenal wall, or inside?
RE: ultrasonic transceiver small size