 | | 15' max measurement —Jeff Keyzer
| | | | Yup, it looks like 15' is about as far as I can measure. In fact, if the distance is _too_ great, I start getting weird measurements, on the order of 8 or 9 feet. Strange. I turned the gain up a bit, which keeps those erratic measurements from (...) (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
| | | | | | | | | | Re: 15' max measurement —MAR ERICSON
| | | | | | (...) I believe it would matter what type of material you reflect the pulse off of, I would guess. Different surfaces have differenc acoustical properties. Just like they have those silent rooms and echo chambers, etc. (29 years ago, 14-May-96, to lugnet.robotics.handyboard)
| | | | | | | | | | | | Re: 15' max measurement —MAR ERICSON
| | | | | (...) I just noticed that the Polaroid Specs say that the transducer pulse current is 2 A. 100mA idle. Since it was mentioned previously that the HB's VR is rated for 1 Amp, how would this affect the sonar? Perhaps whatever is left of the 1A (...) (28 years ago, 28-May-96, to lugnet.robotics.handyboard)
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