仪器简介：
Newdevelopmentbasedonmorethan10yearsofexperienceinbubble
pressuremeasuringtechnique.Manynewinstrumentaldetailshavebeen
publishedrecently,suchasthedeterminationofbubbletimecharacteristics
fromthegasflowsignal.Toreachtheextrashorttimesofmillisecondsand
less,thespecialmeasurementroutineofFainermanisapplied.
Canworkasstand-alone,graphicdisplayonboard.
Uniqueinstrumentformeasurementsdownto0.1milliseconds.
TheBPA-1Srepresentsthehighendinstrumentofbubblepressure
tensiometry,andtheBPA-1Pisitssimplifiedversion.

Software
BPA-1Scanoperateasstand-alone
instrument.Itstoresdataonboardfor180
measurementswhichcanbedownloadedto
aPC(bothRS232andUSBportonboard).
Thesoftwareallowsgraphicaldisplayof
severalmeasurementsforcomparison.
Graphicswithvariouszoomfunctions
supportsthevisualanalysisofthedata.
ExportastextfileordirectlyintoMSExcel.
Uniqueinstrumentforveryshortadsorption
timesdownto0.1millisecondsduetothe
applicationoftheFainermanmeasuringroutine.Automaticandmanual
determinationofthecriticalflowrate.Requiredsmallbubblevolumeanddeadtime
possibleduetospeciallydesignedcapillaries.

FieldsofApplication
surfactantsciencepharmacy
inkjetprintingcosmetics
coatingtechnologyfoodtechnology
foamandemulsiontechnologymedicineandbiology
detergencyecology



技术参数：
Range of surface and interfacial tension 10 to 100 mN/m;
Reproducibility ov measured values ± 0.1 mN/m
Accuracy of surface tension ± 0.1 mN/m
Dynamic time range 0.1 ms to 100 s
Display
- graphic display bw 320 x 240 pixel
Min. volume test liquid 1 ml
Temperature range 10 .. 80°C

Experimental time:
- Standard mode (M1) 20-30 min
- Fast mode (M4) 4-6 min
Software Windows software (free update over 1 years after purchase)
Number of measurement point:
- All scan modes (M1, M3, M4) max. 180
- Constant mode (M2) min. 30000
Memory on board 2 MB
Process control领 option on board (on request)
Dimensions (L x W x H): 200 x 250 x 400 mm
Weight: 3 kg
Power requerment:
- Measurement unit 12 VDC
- Power supply 100 … 240 AC; 50 … 60 Hz
- Max. power consumption 6 W
Extra accessories capillaries of different diameter and design
Technical Data:

主要特点：
Features
direct and precise measurement of dead and life time
surface tensions as function of physical time and adsorption time
available time interval of 6 orders of magnitude (0.0001 to 100 s)
precise measurement of scientific dynamic surface tensions
direct determination of the hydrostatic pressure via automatic capillary
immersion
correction of effects from gravitation and viscosity of the liquid
estimation of liquid’s viscosity
temperature monitoring and control of the sample
can be run also without PC