durusmail: mems-talk: Gas sensors ?
Gas sensors ?
1999-10-11
Gas sensors ?
LIU Ai Qun
1999-10-11
Hello

I am looking for suggestion and information regarding gas sensor microchip
and integrated wireless transceiver. The details of gas sensors are as
follows:

1.      Gas monitoring is routinely done to check for the presence of hydro
carbon gases (LNG, LPG) in the confined spaces of vessels.  These
checks are basically done to determine the % LEL.

2.      Besides monitoring spaces for flammable gases, gas checks are also
carried out, at times, to determine toxicity (ppm) levels.      Some of the
gases,  commonly checked for, are as follows :-

        (  i)   Hydrogen Sulphide
        ( ii)   Ammonia
        (iii)   Vinyl Chloride Monomer
        (iv)    Benzene
        ( v)    Carbon Monoxide

 Gas checks for toxicity are carried out depending on the cargo
manifests.  Gas Detector tubes are normally used for such monitoring.

Who has this kind of devices or technology?

Thanks

Aiqun


______________________________________________________________
AIQUN LIU  Ph.D
Senior Research Fellow, MEMS Technology
INSTITUTE OF MATERIALS RESEARCH & ENGINEERING
Blk S7, Level 3
National University Of Singapore
SINGAPORE 119260

Tel: (65) 8748161
Fax: (65) 8720785
email: aq-liu@imre.org.sg
_________________________________________________________________________


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