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  • 1
    Electronic Resource
    Electronic Resource
    Minimising stimulator artefacts in electromagnetic flow signals (1988)
    Springer
    Medical & biological engineering & computing 26 (1988), S. 17-19 
    Details
    ISSN: 1741-0444
    Keywords: Cardiac pacing ; Electromagnetic flow probes ; Stimulation artefact
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Simultaneous electrical stimulation of tissue with the measurement of blood flow using an electromagnetic flowmeter system almost invariably results in large flow measurement inaccuracies. These inaccuracies are because the electrical energy from stimulating artefacts is amplified along with the flow signals. The paper describes the building and use of an inexpensive circuit to remove stimulation artefacts from electromagnetic flow measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441822
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    Paper (German National Licenses)
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  • 2
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    Secondary electron emission from a charged dielectric (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Charges on the surface of fluorinated-ethylene-propylene affect its secondary electron emission coefficient. Measurements with impact energies exceeding that energy which causes peak emission have been made in regions where the local electric field produced by the surface charge is normal to the surface and in regions where it is oblique. The surface of the 6-mm wide specimen was charged to either 6 or 10 kV. Because the impinging primary beam was deflected by the charged specimen, numerical modeling was used to predict the beam's impact energy E, impact angle theta, and the impact point. The formula predicts the coefficient in the region of normal field up to 60 deg although E(0) depends upon the electric field and also on the history of the specimen. Near the edges where the field is oblique, the measured coefficient departs significantly from what the formula predicts.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: IEEE Transactions on Electrical Insulation (ISSN 0018-9367); EI-20; 485-491
    Format: text
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    NASA TECHNICAL REPORTS
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