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- Newsgroups: sci.electronics
- Path: sparky!uunet!gatech!darwin.sura.net!mips!mips!decwrl!csus.edu!netcom.com!nagle
- From: nagle@netcom.com (John Nagle)
- Subject: Re: Laser speed gun detectors?
- Message-ID: <k16mp+r.nagle@netcom.com>
- Date: Fri, 14 Aug 92 18:42:54 GMT
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <1992Aug14.044343.24045@mullet.gu.uwa.edu.au> <mmaster.2a8bcdb6-e@parnasus.dell.com>
- Lines: 14
-
- mmaster@parnasus.dell.com (Michael Masterson) writes:
- >So far, Cincinatti Microwave has a model out, and Bel has one about to
- >hit stores, CM claims 2500feet detection range, Bel claims 5000 feet,
- >the range on the speedguns is only about a thousand feet.
- >The detectors are based on the technology that was used to detect
- >laser guided weapons in Desert Storm.
-
- Anyone know what they're using as a detector? I'm building a laser
- rangefinder for robot vision, and I'd like to know what these guys use.
- PIN diodes don't put out much output and avalanche diodes are too nonlinear
- for use when the beam is dimmer than the ambient light. So what do they
- use to get that kind of S/N?
-
- John Nagle
-