Cross Port " Air flow measurement "

[Roy]

Kalle Pihlajasaari wrote:
> 
> Hi,
> 
> Here is a messsage from another list I'm on.
> 
> It seem that ultrasonic flow measurement might be a out the box sollution
> but I have no idea how these are implemented, perhaps someone in
> the UK could make a few calls and let the list know what is on offer.
> 
> Forwarded message:
> > Date: Thu, 2 Jan 1997 20:51:20 +0800 (HKT)
> > From: Stuart Smith <spsmith at hk.net>
> > Subject: Re: [STAMPS]..Wind Speed Devices!!!! Low Speed+
> >
> > Solent of the UK make an ultrasonic anemometer rated down to 0.02m/s! The
> > deluxe versions also do 3 dimensional direction output! The top end goes
> > up to 90m/s as well. However it is somewhat more expensive than the
> > conventional type, however they are well made and the accuracy specs. good
> > as they have no friction etc...
> >
> > Contact: Biral Industrial & Research, UK
> > Ph: +44 1275 847787
> > Fax: +44 1275 847303
> > e-mail: info at biral.com
> > WWW: http://www.biral.com
> >
> > Stuart Smith
> 
> Cheers
> --
> Kalle Pihlajasaari   kalle at ip.co.za   http://www.ip.co.za/ip
> Interface Products   P O Box 15775, DOORNFONTEIN, 2028, South Africa
> + 27 (11) 402-7750   Fax: 402-7751    http://www.ip.co.za/people/kalle
> 
> DonTronics, Silicon Studio and Wirz Electronics uP Product Dealer
>
> FROM Roy Spectrics Ltd
>
> These anerometers are of no use at all unless you have an inlet tract that can handle a device that is 2ft tall!  They are marine devices fitted onto boats to measure windspeed and direction.  They would also have difficulty in coping with the pulsations found in the inlet tract.