Checking Performance Test for Fresh Sub Assembly Inspection Facility (FSIF) Elevation Using Optical

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INTERNATIONAL JOURNAL FOR TRENDS IN ENGINEERING & TECHNOLOGY

VOLUME 3 ISSUE 1 –JANUARY 2015 - ISSN: 2349 - 9303

Checking Performance Test for Fresh Sub Assembly Inspection Facility (FSIF) Elevation Using Optical System T.Bhuvaneswari National Institute of Technology, Tiruchirappalli, India Department of Electronics and Communication Engineering bhuvaneswariarasu@gmail.com

Dr.D.Sriram Kumar National Institute of Technology, Tiruchirappalli, India Department of Electronics and Communication Engineering srk@nitt.edu

Abstract—The Checking of performance test for the system of Fresh Subassembly Inspection Facility (FSIF) at elevation 21M in the fuel building of Prototype Fast Breeder Reactor (PFBR) with the inspection of straightness checking of Fresh Sub Assembly (FSA) is being measured using the Optical system. A device for measuring the profile of a Fresh Sub Assembly (FSA) uses three expanded planar laser beams, each of the planar beams relatively disposed at angle of 45° and directed towards the FSA. Respective photocells are arranged to be illuminated by the beams after passing through the deviated body. If the FSA is deviated from its position then the relative movement is effected between the FSA and the laser beams. Index Terms— Planar Laser beams, Fresh Sub Assembly, Photo detector, Plurality of heights. ——————————  ——————————

1 INTRODUCTION

T

HE Fresh Sub Assembly Inspection Facility (FSIF) is a system used for identification and inspection of fresh SA before loading into the reactor. Each Sub assembly is primarily designed for particular flow zone in the reactor. FSIF consists of a dimensional inspection set up, measuring the straightness of sub assembly from deviation is checked up using Optical system before loading into the reactor. The Dimensional inspection setup consists of a bottom support structure, which holds the foot of the Sub assembly in vertical direction in a sleeve. This support structure rests on the floor on its flanges. Using the optical system with the source of planar laser beam, Inspection is made by checking the straightness of the Fresh Subassembly which is being sensed at the sensing distance of 2.5mm from deviation.

Camera Motor Parameters: 1) Input Voltage: 238v AC, 50Hz Supply, 2) Current drawn: 130 mA.

3 FOOT PROFILE INSPECTION Sub Assembly foot profile Upper zone identification mechanism (X) and Lower zone identification mechanism (Z) is checked by a diametrically opposite two sets of measuring heads on the bottom structure. The absolute values for the foot profile LVDT’S are available in control panel. The foot profile measurement details: X=79.96, Z=54.64.

TABLE 1

2

IDENTIFICATION ON SUB ASSEMBLY USING CAMERA ROTATION

Rotation mechanism for the camera is checked by a powering drive motor mounted on the mechanism. The motor is rotated up to the end limits. The end limits were checked by a limit switches mounted on the structure. It is found that motor supply is cut off by an end limit switches actuation. Camera Motor Name plate details: 1) Vishal_sync, Serial: 9116. 2) Synchronous speed: 60 RPM. 3) Rated Torque: 10.

IJTET©2015

FOOT PROFILE INSPECTION OF FSA. With SA

Without SA Sl. LVDT 1(Lower)

LVDT 2(Upper)

LVDT 1(Lower)

LVDT 2(Upper)

1

44.68

67.61

54.22

79.88

2

44.63

67.48

54.18

79.80

No

98


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