Joined: June 30, 2006
Posts: 164
Location: Hiroshima,Japan
Status: Offline
Posted:
Feb 19, 2009 - 02:47 AM
Post subject: Basics of instrumentation at glance
hi all,
here is some basics to refresh ourself with small things at one glance..
Instro
ICE Newbee
Joined: Mar 10, 2009
Posts: 4
Location: New Zealand
Status: Offline
Posted:
Mar 12, 2009 - 05:17 AM
Hey Nita
Thanks for that, great resource with all the basics covered very well. I would like to give that to some of my customers that want to have an understanding of instrumentation measuring principles.
I've only had a quick look so far but would like to add a couple of points.
1. Magflow meters Do have straight pipe requirements, generally 5 x Pipe Diameter upstream and 2 x Downstream, this helps ensure a uniform flow through the meter and therefore the accuracy statement by the manufacturer, which as you point out is generally <0.5%
2. Radar level measurement should be added to the Level section, I would suggest something like
2.4.9 Microwave Radar
Radar type works on the principle of measurement of the time required for sound waves to travel through space (Time of Flight), and suitable for non-contact level measurement applications of liquids and solids that are too difficult for ultrasonic.
Accuracy is generally not affected by variations of pressure, temperature, relative humidity, concentration of gases and vapors.
Microwave radar waves are reflected by the change in Dielectric constant (DK) from space to the product surface
Cheers
fundu_instru
ICE Expert
Joined: June 20, 2006
Posts: 180
Location: Singapore
Status: Offline
Posted:
Mar 15, 2009 - 12:37 PM
hi instro
very good inputs
can you updated this doc file and upload as revised
Really good one. Whatever I thought to ask are appearing in this site.
Greatful to have friends like this to share.
Thanks
Govarhdan
nita
ICE Expert
Joined: June 30, 2006
Posts: 164
Location: Hiroshima,Japan
Status: Offline
Posted:
June 04, 2009 - 03:35 AM
hi instro,
i m very pleased to hear that you like the info and as suggested by funduinstru you can update the doc file and can upload it again.
Looking forward for such information from you.
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