Surveys and data Instruments
Support to other department sections Support Dr. Scient. thesis Contribution to "Scientific infrastructure"
Obsolete, kept for reference
Last update: April 12, 2024, at 07:29 AM |
RV "KRONPRINS HAAKON": AIR PRESSURE SENSOR (FOR AIRGUNS) <back to main page>PRESSURE SENSOR 0..250 Bar(g), 4-20 mA interface, TECSIS Mod. P3276Pressure transmitter manufactured by Tecsis has been used on R/V "HÅKON MOSBY and R/V "G. O. SARS" with good results since 2001. Norwegian supplier: IKM - Instrutek
SENSOR INSTALLATIONOn R/V "Håkon Mosby" (click to enlarge).Air pressure sensor installation on R/V "Håkon Mosby", above instrument room door. HP line on the right. Click to enlarge. On R/V "G.O. Sars" (click to enlarge).NOTE: Photo is taken before pressure sensor was installed. It most likely replaces the manometer shown. This is on 2nd deck, near HP outlet and airgun control cables junction box. R/V "G.O. Sars, 2nd deck, near HP outlet and airgun control cables junction box. Click to enlarge.
SENSOR DISPLAY UNITAs used on RV "G.O. Sars" (not produced any longer)![]() Tecsis process display mod 1929.300.001
HIGH-PRESSURE PIPING SYSTEM
SOFTWARE FOR AIR PRESSURE MONITORING & ALARMThe sensor display unit is furnished with RS232 (or RS485) interface. A serial command can be sent to the unit and it will respond with measurement value. Python data collection software running on a Linux PC issues sampling commands continuously. When airguns are fired the software extracts the highest pressure value that had been registered lately, in order to plott plot air pressure as function of shot number. The result is shown below. Other process parameters are also sampled; "Birds" refer to devices that keeps the streamer at a certain depth and are not related to our avian friends :-) ![]() |