What type of range (distance) measurement sensor (and/or sensor combinations to minimize the total cost) available with the following specs i. Range : 1-25 meters ii.Accuracy : 2-5cm iii. Max spot size at target : 10cm radius @ 25m iv. Repetation rate : 10Hz v. Price : (Yes, I would prefer "low cost" whatever it means)
1-25 m range sensor
Started by ●September 11, 2005
Reply by ●September 11, 20052005-09-11
A tape measure $10 from bunnings "Ricardo Perezzo" <rp@rp.com.uk> wrote in message news:4323ea5b$0$19001$afc38c87@news.optusnet.com.au...> What type of range (distance) measurement sensor (and/or sensor combinations to > minimize the total cost) available with the following specs > i. Range : 1-25 meters > ii.Accuracy : 2-5cm > iii. Max spot size at target : 10cm radius @ 25m > iv. Repetation rate : 10Hz > v. Price : (Yes, I would prefer "low cost" whatever it means) > > > >
Reply by ●September 11, 20052005-09-11
Ricardo Perezzo wrote:> What type of range (distance) measurement sensor (and/or sensor combinations > to minimize the total cost) available with the following specs > i. Range : 1-25 meters > ii.Accuracy : 2-5cm > iii. Max spot size at target : 10cm radius @ 25m > iv. Repetation rate : 10Hz > v. Price : (Yes, I would prefer "low cost" whatever it means)If you could handle a much larger spot size, and possibly a lesser range, ultrasonic rangefinders are the cheapest option for long distances. If the small spot size is required, then you might be stuck with pricey laser rangefinders that measure the round-trip travel time. The Acuity AR4000 measures up to 16.5m and lists at $3500. Similar products can be found elsewhere. http://www.acuityresearch.com/products/index.shtml http://www.astech.de/ENGLISH/ldm41a_e.htm Later, Daniel
Reply by ●September 11, 20052005-09-11
"Ricardo Perezzo" <rp@rp.com.uk> wrote in message news:4323ea5b$0$19001$afc38c87@news.optusnet.com.au...> What type of range (distance) measurement sensor (and/or sensorcombinations> to minimize the total cost) available with the following specs > i. Range : 1-25 meters > ii.Accuracy : 2-5cm > iii. Max spot size at target : 10cm radius @ 25m > iv. Repetation rate : 10Hz > v. Price : (Yes, I would prefer "low cost" whatever it means) >I bought one on sale at the local hardware warehouse for about $50 the other day. Ken
Reply by ●September 11, 20052005-09-11
In article <4323f8c6$0$27926$5a62ac22@per-qv1-newsreader- 01.iinet.net.au>, noone@home says...> A tape measure > > $10 from bunnings > > > "Ricardo Perezzo" <rp@rp.com.uk> wrote in message > news:4323ea5b$0$19001$afc38c87@news.optusnet.com.au... > > What type of range (distance) measurement sensor (and/or sensor combinations to > > minimize the total cost) available with the following specs > > i. Range : 1-25 meters > > ii.Accuracy : 2-5cm > > iii. Max spot size at target : 10cm radius @ 25m > > iv. Repetation rate : 10Hz > > v. Price : (Yes, I would prefer "low cost" whatever it means)You can get a 25m tape for that price? Here in the US, for $10 you would be lucky to get a good 25-foot tape. Mark Borgerson
Reply by ●September 12, 20052005-09-12
"Mark Borgerson" <mborgerson.at.comcast.net> wrote in message news:MPG.1d8e51ac38d515ad989fb9@newsgroups.comcast.net...> In article <4323f8c6$0$27926$5a62ac22@per-qv1-newsreader- > 01.iinet.net.au>, noone@home says... > > A tape measure > > > > $10 from bunnings > > > > > > "Ricardo Perezzo" <rp@rp.com.uk> wrote in message > > news:4323ea5b$0$19001$afc38c87@news.optusnet.com.au... > > > What type of range (distance) measurement sensor (and/or sensorcombinations to> > > minimize the total cost) available with the following specs > > > i. Range : 1-25 meters > > > ii.Accuracy : 2-5cm > > > iii. Max spot size at target : 10cm radius @ 25m > > > iv. Repetation rate : 10Hz > > > v. Price : (Yes, I would prefer "low cost" whatever it means) > > > You can get a 25m tape for that price? Here in the US, for $10 you > would be lucky to get a good 25-foot tape. > > > Mark Borgerson >See, if you went metric you'd get a 300% + improvement on things straight away..... Ken
Reply by ●September 12, 20052005-09-12
"Ricardo Perezzo" <rp@rp.com.uk> wrote in message news:4323ea5b$0$19001$afc38c87@news.optusnet.com.au...> What type of range (distance) measurement sensor (and/or sensor > combinations to minimize the total cost) available with the following > specs > i. Range : 1-25 meters > ii.Accuracy : 2-5cm > iii. Max spot size at target : 10cm radius @ 25m > iv. Repetation rate : 10Hz > v. Price : (Yes, I would prefer "low cost" whatever it means) > >That sounds like a laser rangefinder to me. All you need is a laser diode and photodiode, possibly a reflector on the target coupled with some very fast pulse generating and measuring. Hope that helps with the homework. Peter
Reply by ●September 12, 20052005-09-12
Actually, most laser range finders use a phase measurement, rather than actual flight time. Leica Geosystems makes some fairly lowcost laser distance meters, around $800 if I recall correctly. [http://www.leica-geosystems.com/]
Reply by ●September 12, 20052005-09-12
cadcoke3@yahoo.com wrote:> Actually, most laser range finders use a phase measurement, rather > than actual flight time. Leica Geosystems makes some fairly lowcost > laser distance meters, around $800 if I recall correctly. > [http://www.leica-geosystems.com/]Thanks for the link. The Disto Lite is only $330 (at lascolaser.com) and measures up to 200m with 3mm accuracy. Their higher-end units have bluetooth for wireless data transfer. If I only had a reason to buy one; they look neat. Daniel
Reply by ●September 13, 20052005-09-13
> Thanks for the link. The Disto Lite is only $330 (at lascolaser.com) and > measures up to 200m with 3mm accuracy. Their higher-end units have > bluetooth for wireless data transfer. If I only had a reason to buy one; > they look neat. > > DanielDoes Disto Lite has any computer interface such as RS232?