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I'm trying to create higher resolution data with a beam angle of 5> degrees (as close as 1 degree as possible). I have been experimenting with creating using an aluminum casing around the sensor input. Are there any other or perhaps better ways of doing this?

CH201 datasheet.

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Consider something like the following. Use 3D printer to experiment.

enter image description here

enter image description here


Reference:

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  • $\begingroup$ That image is for a 45" beam profile. The OP is requesting less than 5 degrees. $\endgroup$ – Eric S Jan 17 at 16:50
  • $\begingroup$ @EricS You are correct, I am providing OP an idea, to achieve 5 degree's. Currently OP is using an aluminum casing. $\endgroup$ – Mahendra Gunawardena Jan 17 at 18:31
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The datasheet, page 11, says:

CH201 Beam Patterns

The acoustic Field of View is easily customizable for the CH201 and is achieved by adding an acoustic housing to the transceiver that is profiled to realize the desired beam pattern. Symmetric, asymmetric, and omnidirectional (180° FoV) beam patterns are realizable.

An example beam pattern is shown in the Typical Operating Characteristics section of this document and several acoustic housing designs for various FoV’s are available from Chirp.

Talk to them!

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  • $\begingroup$ Some sort of link would help this answer. $\endgroup$ – Eric S Jan 16 at 23:22
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    $\begingroup$ The OP has the link buried in the comments. $\endgroup$ – Transistor Jan 16 at 23:39
  • $\begingroup$ Please put it in your answer. You shouldn’t make people search for important information. $\endgroup$ – Eric S Jan 17 at 16:02
  • $\begingroup$ I put it in the question where it should have been. Thanks. $\endgroup$ – Transistor Jan 17 at 16:22
  • $\begingroup$ I still think it is best embedded in your answer since you are referring it. You might think it is redundant, but why make the reader search? $\endgroup$ – Eric S Jan 17 at 16:48

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