The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: Robert Baer
X-Mailer: Mozilla 4.75 [en] (Win98; U)
Subject: Re: Polariod sensor
Date: Wed, 04 Sep 2002 07:05:38 GMT
NNTP-Posting-Date: Wed, 04 Sep 2002 00:05:38 PDT
Organization: EarthLink Inc. -- http://www.EarthLink.net
> The sensor seems to stop its activites when the connecting wires
> leading to the transducer are being contacted. The audible pulses from
> the transducer could no longer be heard and the sensor has to be
> powered off and back on again before it starts to work again. We will
> be implementing the sensor on a platform that will experience
> vibration. We are concerned over the performance and reliability of
> the sensor being operated in such an environment.
> We have encountered problems when trying to detect distances closer
> than the default 1.33ft. We understand that the BINH pin needs to be
> pulled high to achieve that. However, the sensor will fail to work
> properly whenever the BINH pin is pulled to high or low. It has been
> noted that there must not be any instructions or commands in the
> program that will link to this BINH pin, else, the ECHO pin will
> output a high logic immediately after the INIT command. We have tried
> different delay times between the INIT and BINH commands, but the
> problem is still there.
> It has been noticed that the actual hardware circuit layout defers
> from the circuit diagram that came with the package. The three
> components (indicated by three blue arrows in the attached figure)
> shows just plain connecting bare wires. However, our module has some
> unknown components replacing these wires. We would like to know what
> are the identity and functions of these components.
> Thank you
?? "attached figure" ??
Please try again.......
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup