Hi,
Some years ago I have been using a propellor current-meter. I can find out about the brand, if you wish. If you have one, you also can hold a GPS in the air and use your body as a "floating device". If you ve pushed on the appropriate buttons, the GPS will indicate your speed as a plancton in the water. Regards J.de Mevius ----- Original Message ----- From: "Carlos Bonifetti" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, January 28, 2005 10:11 PM Subject: Re: [microhydro] Measuring stream flow > > > Hi Brendan, Steve, ....: > > For that flow, the salt dilution or current velocity/area measurement with > floating devices methods are both practical. > > Regards, > > Carlos > > > ----- Original Message ----- > From: "Steven Schoeffler" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, January 28, 2005 3:58 PM > Subject: Re: [microhydro] Measuring stream flow > > > > > > > > Please respond to the group.... I'd be interested in this also. > > > > Thanks, > > > > Steve > > > > ----- Original Message ----- > > From: B Fitzgerald > > To: [email protected] > > Sent: Friday, January 28, 2005 8:55 AM > > Subject: [microhydro] Measuring stream flow > > > > > > > > > > Hello Microhydro group, > > I am looking to measure accurately the flow in a stream that I am > > interested in developing. Using the flow prediction by area-rainfall > > method I have calculated that the provisional mean flow is > > approximately 0.25 cubic metres per second. I have investigated a > > number of methods and have decided that a dilution method or a > > velocity-area method utilising a propellor current meter or > > electro-magnetic current meter would be most suitable. (The weir > > method or bucket fill method are not possible in this situation). > > I would like to know if anyone has any information or is selling a > > reliable current meter or indeed if anyone had any tips on evaluating > > the flow of a stream. I will be taking measurements at regular > > intervals over the next 7 to 8 months. > > Thank you all for your time, > > > > Regards, > > Brendan Fitzgerald > > IT Tralee > > > > > > > > > > > > > > > > > > Does your company feature in the microhydro business directory at > > http://microhydropower.net/directory ? If not, please register free of > > charge and be exposed to the microhydro community world wide! > > > > NOTE: The advertisements in this email are added by Yahoogroups who > > provides us with free email group services. The microhydro-group does not > > endorse products or support the advertisements in any way. > > > > More information on micro hydropower at http://microhydropower.net > > > > To unsubscribe: send empty message to > > [EMAIL PROTECTED] > > > > > > > > -------------------------------------------------------------------------- ---- > > Yahoo! Groups Links > > > > a.. To visit your group on the web, go to: > > http://groups.yahoo.com/group/microhydro/ > > > > b.. To unsubscribe from this group, send an email to: > > [EMAIL PROTECTED] > > > > c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of > > Service. > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > Does your company feature in the microhydro business directory at > > http://microhydropower.net/directory ? If not, please register free of > > charge and be exposed to the microhydro community world wide! > > > > NOTE: The advertisements in this email are added by Yahoogroups who > > provides us with free email group services. The microhydro-group does not > > endorse products or support the advertisements in any way. > > > > More information on micro hydropower at http://microhydropower.net > > > > To unsubscribe: send empty message to > > [EMAIL PROTECTED] > > Yahoo! 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