Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids
First Claim
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1. A particulate matter analyzer comprising:
- a collecting unit for collecting particulate matter in a sample gas of only a predetermined size range on a filter;
a mass measuring unit for measuring mass of the particulate matter while on the filter; and
a composition analyzing unit for analyzing composition of the particulate matter while on the filter, wherein the measurement of mass and analysis of composition are performed on the same collected particulate matter on the filter within the particulate matter analyzer.
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Abstract
A system, including a particulate matter analyzer and collecting filter, provides a method of analyzing and collecting samples from fluids, such as collecting particulate matter from air. A mass measuring unit and composition analyzing unit can be provided for either simultaneous or immediately consecutive measurements within a single instrument. The filter material can have an antistatic electricity characteristic and can be impregnated with reference material to enable calibration of the composition analyzing unit.
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Citations
23 Claims
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1. A particulate matter analyzer comprising:
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a collecting unit for collecting particulate matter in a sample gas of only a predetermined size range on a filter; a mass measuring unit for measuring mass of the particulate matter while on the filter; and a composition analyzing unit for analyzing composition of the particulate matter while on the filter, wherein the measurement of mass and analysis of composition are performed on the same collected particulate matter on the filter within the particulate matter analyzer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for collecting particulate matter in a fluid and analyzing mass of the particulate matter and its composition, comprising:
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a collecting unit including a source of filter members for performing a plurality of sequential measurements and a sample fluid supplying unit for directing a predetermined amount of a sample to a filter member to separate particulate matter of a predetermined size range from the sample fluid; a mass measuring unit for measuring the mass of the particulate matter while on the filter member; a composition analyzing unit for analyzing the composition of the particulate matter while on the filter member; a transporting unit for moving one of the plurality of filter members from the sample fluid supplying unit to respectively the mass measuring unit and the composition analyzing unit; and a controller unit for automatically enabling the collecting unit, mass measuring unit, composition analyzing unit, and transporting unit, wherein a plurality of measurements with a plurality of filter members are carried out on the particulate matter over a predetermined time period. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A particulate matter analyzer comprising:
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a collecting unit for collecting particulate matter in a sample gas including a size separator unit for supplying a predetermined size and smaller of particulate matter, an elongated filter member having an upper and a lower transporting unit for moving a predetermined length of the filter member to receive the particulate matter from the size separator unit; a mass measuring unit for measuring mass of the particulate matter as deposited on the filter member; a composition analyzing unit for analyzing composition of the particulate matter as deposited on the filter member; and a controller unit for automatically enabling the collecting unit, the mass measuring unit, the composition analyzing unit, and the transporting unit to perform a plurality of measurements on a series of predetermined lengths of the filter member automatically over a predetermined time period without an operator. - View Dependent Claims (20, 21, 22, 23)
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Specification