Cured-in-place-pipe liner inspection system and method
First Claim
1. A method of inspecting a cured-in-place-pipe (CIPP) liner, comprising the steps of:
- a) deploying a robotic unit into a CIPP liner after curing in a host pipe; and
b) inspecting a mechanical property along a length and around a circumference of the CIPP liner using an optical sensor of said robotic unit by;
i) measuring an optical property along said length and said circumference of said CIPP liner using said optical sensor of said robotic unit;
ii) determining said mechanical property along said length and said circumference of said CIPP liner using said optical property measured along said length and said circumference of said CIPP liner and a predetermined correlation between said optical property and said mechanical property; and
iii) comparing said determined mechanical property along said length and said circumference of said CIPP liner with an allowable range for said mechanical property.
2 Assignments
0 Petitions
Accused Products
Abstract
A cured-in-place-pipe (CIPP) liner inspection system used to inspect a resin level in a CIPP liner that has been impregnated with resin using an inspection chamber having an optical sensor. The CIPP liner inspection system is also used to identify zones within an installed CIPP liner having lower mechanical strength due to inadequate distribution of resin using a robotic unit having an optical sensor. The optical sensor measures an optical property, which is used to determine a resin level or a mechanical property based on predetermined correlations between the optical property and the resin level and predetermined correlations between the optical property and the mechanical property.
18 Citations
6 Claims
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1. A method of inspecting a cured-in-place-pipe (CIPP) liner, comprising the steps of:
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a) deploying a robotic unit into a CIPP liner after curing in a host pipe; and b) inspecting a mechanical property along a length and around a circumference of the CIPP liner using an optical sensor of said robotic unit by; i) measuring an optical property along said length and said circumference of said CIPP liner using said optical sensor of said robotic unit; ii) determining said mechanical property along said length and said circumference of said CIPP liner using said optical property measured along said length and said circumference of said CIPP liner and a predetermined correlation between said optical property and said mechanical property; and iii) comparing said determined mechanical property along said length and said circumference of said CIPP liner with an allowable range for said mechanical property. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification