Boots – shoes – and leggings
Patent
1988-01-11
1990-02-27
Lall, Parshotam S.
Boots, shoes, and leggings
364502, 73 611C, 210101, G06G 757, G01N 3100
Patent
active
049051610
ABSTRACT:
There is disclosed herein a system for testing the flow stability of the pumping system for liquid chromatography. The system determines the flow rate and determines the number of revolutions over which the flow rate is to be measured from the flow rate. The system then measures the value of a signal which is related to the flow rate multiple times for each revolution. The maximum value and the minimum value for each revolution is recorded. After the data from the requisite number of revolutions is collected, a calculation is performed which determines the flow stability indicator which is displayed. The calculation takes a multiple of the difference between the maximum of maximums and the minimum of minimums and divides it by the sum of the maximum of maximums and the minimum of minimums.
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Spectra Physics SP8700 Pump Sofare.
Spectra Physics SP8700 Solvent Delivery System, 12 pages, published for Spectra--Physics.
Miller Les A.
Shafer Roberta
Lall Parshotam S.
Makay Christopher L.
Spectra-Physics Inc.
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