EP0228147A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A system for determining the basis weight of cord reinforced tyre fabric
Assignee: Honeywell Measurex Corp
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Filing: 1986-04-04
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Granted: —
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Expires: 2006-04-04
Abstract
Abstract A system for determining the basis weight of cord reinforced tyre fabric which involves the use of two radiation sources, for example a collimated x-ray beam, and a beta ray source. One of the radiation sources and its corresponding sensor (e.g., the x-ray source) is used to determine the fractional area of the fabric not containing steel cords, while the other (e.g., the beta ray source) is used to measure the average attenuation of radiation passing through the fabric. Both sources and their corresponding sensors are movably mounted on a pair of beams which extend across the width of the fabric web. The source sensor assemblies continuously scan across the fabric width so that information from the entire fabric area is obtained.
Inventors
- 👤 Lee M. Chase
- 👤 Philip M. Hegland
- 👤 John Goss
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 00:21
CPC Classifications
B; B29; B29D; B29D30/00; G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/083; G01N23/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A system for determining the weight per unit area of a sheet of material having a core comprised of spaced cords which comprises: a) a first radiation source for irradiating an area of said sheet with radiation; b) means for generating a first signal dependent on the fraction of the radiation from said first radiation source which passes through said sheet; and c) means for altering said first signal by an amount dependent on the fractional space of said sheet between said cords.
Claim 2
Independent Claim
83 words
A system for determining the weight per unit area of a sheet of material having a core comprised of spaced cords which comprises: a) a first radiation source for irradiating an area of said sheet with radiation; b) means for generating a first signal dependent on the fraction of the radiation from said first radiation source which passes through said sheet; and c) means for altering said first signal by an amount dependent on the fractional space of said sheet between said cords.
Claim 3
Dependent Claim
25 words
A system as recited in claim 1 and further including means for generating a second signal dependent on the logarithm of said altered first signal.
Claim 4
Dependent Claim
42 words
A system as recited in claim 2 and further including means for altering said second signal dependent on the ratio of the cross sectional area of said sheet per unit width to the cross sectional area of said cords per unit width.
Claim 5
Independent Claim
20 words
A system as recited in claims 1, 2 or 3 where said radiation source is a source of beta rays.
Claim 6
Independent Claim
108 words
A system for determining the weight per unit area of metal cord reinforced fabric which comprises: a) a source of radiation for irradiating an area of fabric being tested; b) a detector for generating a first signal representative of the fractional amount of said radiation passing through said fabric; c) means for generating a second signal dependent on the fractional space between the cords of said fabric; d) means for altering the magnitude of said first signal by an amount dependent on the magnitude of said second signal; and e) means for providing a third signal dependent on the logarithm of the magnitude of said altered first signal.
Claim 7
Independent Claim
108 words
A system for determining the weight per unit area of metal cord reinforced fabric which comprises: a) a source of radiation for irradiating an area of fabric being tested; b) a detector for generating a first signal representative of the fractional amount of said radiation passing through said fabric; c) means for generating a second signal dependent on the fractional space between the cords of said fabric; d) means for altering the magnitude of said first signal by an amount dependent on the magnitude of said second signal; and e) means for providing a third signal dependent on the logarithm of the magnitude of said altered first signal.
Claim 8
Independent Claim
183 words
A system for determining the weight per unit area of metal cord reinforced fabric which comprises: a) a first radiation source for irradiating an area of said fabric with radiation; b) means for generating a first signal dependent on the fraction of said first radiatio n passing through said fabric; c) a second radiation source for irradiating said fabric; d) detection means for detecting radiation from said second source passing through an area of said fabric which is small compared to the size of said cords; e) means responsive to said detection means for generating a second signal dependent on whether a cord is between said detection means and said second radiation source; f) means for causing said second radiation source and said detection means to move with a predetermined velocity across said fabric in a direction substantially normal to the direction of said cords; g) means for generating a third signal responsive to said second signal dependent on the fractional distance across said fabric not occupied by said cord; and h) means for altering said first signal dependent on said third signal.
Claim 9
Independent Claim
183 words
A system for determining the weight per unit area of metal cord reinforced fabric which comprises: a) a first radiation source for irradiating an area of said fabric with radiation; b) means for generating a first signal dependent on the fraction of said first radiatio n passing through said fabric; c) a second radiation source for irradiating said fabric; d) detection means for detecting radiation from said second source passing through an area of said fabric which is small compared to the size of said cords; e) means responsive to said detection means for generating a second signal dependent on whether a cord is between said detection means and said second radiation source; f) means for causing said second radiation source and said detection means to move with a predetermined velocity across said fabric in a direction substantially normal to the direction of said cords; g) means for generating a third signal responsive to said second signal dependent on the fractional distance across said fabric not occupied by said cord; and h) means for altering said first signal dependent on said third signal.
References Cited (Backward Citations)
No citation records indexed.
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