want a simple ladar detector

Peter · 2008-11-13T02:44:27+00:00

Can you build a simple ladar detector using a standard 3pin IR receiver with built in preamp of the type used in a lot of home audio/video appliances? Or does it have to be a super sensitive one?If so, then some part numbers would be appreciated.And a schematic if one exists.Thankyou in advance.Peter

P

Peter Hucker 17 years ago

doesn't matter what methos the cops are using.

Then your cops are cleverer than ours. In the UK, cops have zero qualifications. They sit in the easy spots, same ones every time. And you can guarantee they will only be there in nice weather.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com We were home alone the other night. The kids were out, and it was nice and quiet. We were resting on the couch, my head in my wife\'s lap, when she took off my glasses. "You know," she said sweetly, "without your glasses you look like the same handsome young man I married." "You know," I said, "without my glasses, you still look pretty good too!"

Vote

P

Peter Hucker 17 years ago

doesn't matter what methos the cops are using.

Don't be such an ignoramus. I have a GPS, as do thousands of others. And it works. NO speeding tickets.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Why is bra singular and panties plural?

Vote

P

Peter Hucker 17 years ago

Two problems with that. Firstly it's best to concentrate on the road, not the dash. Secondly, speed limits are far too low and must be broken.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Which sexual position produces the ugliest children? Ask your mum.

Vote

P

Peter Hucker 17 years ago

Also wildly inaccurate. Borrow a mate's GPS and compare.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com "These stretch pants come with a warranty of one year or 500,000 calories... whichever comes first."

Vote

M

Michael A. Terrell 17 years ago

Heed your own advice, troll.

--

formatting link

aioe.org, Goggle Groups, and Web TV users must request to be white listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in your account:

formatting link

There are two kinds of people on this earth: The crazy, and the insane. The first sign of insanity is denying that you're crazy.

Vote

P

Peter Hucker 17 years ago

Why do you call someone a troll because their opinion differs to yours, ignoramus?

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Friends are like condoms: They protect you when things get hard.

Vote

M

Michael A. Terrell 17 years ago

ignoramus?

While you continue to call people names who expose your lies and ignorance.

--

formatting link

aioe.org, Goggle Groups, and Web TV users must request to be white listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in your account:

formatting link

There are two kinds of people on this earth: The crazy, and the insane. The first sign of insanity is denying that you're crazy.

Vote

B

Bob Parker 17 years ago

I've got a GPS and the speedometer reads slightly high as all of them do.

[plonk]

Vote

N

Nicholas Sherlock 17 years ago

The GPS will probably give a slower speed reading than the true reading if you are driving in anything other than a straight line, since it only samples positions at discrete intervals and might just use linear interpolation to work out a path between the positions for estimating distance travelled.

Cheers, Nicholas Sherlock

-----------------

formatting link

- *Completion*Retention*Speed* Access your favorite newsgroups from home or on the road

-----------------

Vote

P

Peter Hucker 17 years ago

ignoramus?

I have not lied on this group. Point out the proof.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com The only time you have too much fuel is when you\'re on fire. -- US Air Force training manual.

Vote

P

Peter Hucker 17 years ago

Exactly what I said.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Why are they called buildings, when they\'re already finished? Shouldn\'t they be called builts?

Vote

P

Peter Hucker 17 years ago

Mine doesn't do that. Perhaps the intervals are so close togehter it doesn't matter. If I walk along the street with it, it can tell the difference betwen two points a metre apart.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Why are they called buildings, when they\'re already finished? Shouldn\'t they be called builts?

Vote

C

Clint Sharp 17 years ago

In message , Peter Hucker writes

Almost all are now electronic, derived from the ABS sensor. Even my 10 year old people carrier is but the speedo is still inaccurate, over-reading by 10% at 70MPH. And before Mr Terrell chips in, it's an American made vehicle owned by a Brit.

Which is tiny providing you're not running on flat tyres. Calibration is another matter entirely, the speedo on the car I got rid of four months ago (which was 4 years old) had a distinct 'bump' in the calibration around 70MPH which meant that at 65MPH it was almost spot on, by 70MPH it was 8MPH over and by 85MPH it was again almost spot on.

To put to bed the stories about GPS being inaccurate;

formatting link

Specifically section 5 on page 8. Conclusion, GPS is 10 times more accurate than the average speedometer. Even on a non-straight course.

Clint Sharp

Vote

P

Peter Hucker 17 years ago

is

s

I don't see why they should be inaccurate at all if derived from an ABS = sensor. Those things produce about 40 pulses per revolution of the whee= l. All the computer needs to know is the circumference of the tyre and = the number of teeth on the pickup wheel.

http://www.petersparrots.com http://www.insanevideoclips.com http:= //www.petersphotos.com ,-. ,.---\'\'\'^\\ O { \\ ,__\\,---\'\'\'\'\'`-., O O I \\ K`,\'^ _ `\'. o \\ ,.J..-\'` // (O) ,,X, o / (_ (( ~ ,;:\'\'` o / ,.X\'., \\\\ \':;;;: (_../ -._ ,\'` K.=3D,;.__ /^~/___..\'` / /` ~~~

Vote

M

Michael A. Terrell 17 years ago

they are headed to a different country?

If they can't do the simple math to design an accurate speedometer, the rest of the car won't be any better. If a critical safety component is crap, the whole vehicle is. Next, you'll try to convince me that Lucas made the best automotive electrical components in the world.

http://improve-usenet.org/index.html aioe.org, Goggle Groups, and Web TV users must request to be white listed, or I will not see your messages. If you have broadband, your ISP may have a NNTP news server included in your account: http://www.usenettools.net/ISP.htm There are two kinds of people on this earth: The crazy, and the insane. The first sign of insanity is denying that you\'re crazy.

Vote

P

Peter Hucker 17 years ago

they are headed to a different country?

It is not a critical safety component. Even if you insist that exceeding the speed limit automatically makes you have an accident, they always OVERread, hence if you sit the needle on the limit, you are not speeding.

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com For our 10th anniversary my wife and I vacationed in Hawaii, where we went snorkeling. After an hour in the water everyone got back on the boat, except for one beautiful young woman and me. As I continued my underwater exploring, I noticed that everywhere I swam, she swam. I snorkeled for another 20 minutes. So did she. I climbed back in the boat. So did she. I felt very flattered and, as I took off my fins, asked her coyly why she had stayed in the water for so long. "I\'m the lifeguard," she replied matter-of-factly. "I couldn\'t get out until you did."

Vote

C

Clint Sharp 17 years ago

In message , Peter Hucker writes

I agree entirely, they should be accurate providing you've not done something stupid like fitting different size wheels but the speedo on the car I have just got rid of had a definite 'bump' in the calibration which I can only assume was put there on purpose because I can think of no other reason for it to go non-linear.

Clint Sharp

Vote

P

Peter Hucker 17 years ago

What is the final output stage? Is it a moving coil meter? Perhaps it was just sticky?

http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Uncle Larry was smoking in a restaurant the other day when a guy came up to him and said, "That smoke\'s bothering me." Larry said, "Well, it\'s killing me. If I don\'t care about what it\'s doing to me, why would I give a shit what it\'s doing to you?"

Vote

C

Clint Sharp 17 years ago

In message , Peter Hucker writes

No, it was a company car and it was repeatable across several of my colleagues cars. I *think* it was a stepper motor but I don't know and wouldn't want to say for definite.

Clint Sharp

Vote

want a simple ladar detector

Join the Discussion

Didn't find your answer?