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best sensing methodology for an automation project

I am looking for someone who can suggest the best sensing methodology for an automation project that is to do with automating the movement of steel rebars. The challenge is to automate the job of a human who used to be using his eyes in order to stop the movement of steel rebars, having had stopped the movement, then the human operator will push a button to do another function. I have written a PLC code and tried proximity sensors but the sensing range a proximity sensors is not more than 5cm.

Please imagine the steel rebars being moved to a table (you can imagine it as a converyer of length 70m and width of 1m. so i have designed a gate that is free and attached it to a small rod out of the converyor. Then when the steel rebars falls above this verticle gate, the gate will flip clock wise to be positioned horizantly. and the rod will then be in front of the proximity sensor therefore the sensor will sense the rod. as a result the sensor will know that there are steel rebars now. However, the problem with this idea is that the proximity sensor got damaged because the distance is 2cm only and due to the viberation caused by the movement of the load of rebars the sensor got damaged. Therefore, i want another idea of sensing the rebars without using expinsive technology.

challenges:

1- the steel rebars are hot and more than 70c.

2- the application needs a large number of sensors therefore, cost is important.

expectations:

I want someone who can provide me an idea to automate this process either by modifying my method or you are welcome to come up with a different idea for sensing.

Skills: Electrical Engineering, Electronics, Engineering, Mechanical Engineering

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About the Employer:
( 1 review ) RIYADH, Saudi Arabia

Project ID: #17378555

18 freelancers are bidding on average $34 for this job

trutony

Hi, I am a control engineering expert and have a good experience in design, simulation and development of control systems. If you give me this project, you will get a good result. Thanks. Relevant Skills and Experienc More

$50 USD in 1 day
(20 Reviews)
5.3
RoboTechnics

Hello, I have some ideas to automate the process. Relevant Skills and Experience First, we could use capacitance proximity sensors which have more range than the regular proximity sensors that sense metals. Second, we More

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(3 Reviews)
4.6
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(5 Reviews)
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samiahmetjunaid

We are a team of Engineers (Mechanical, Electrical, Control & Automation), we can provide you with an Ideal solution. Relevant Skills and Experience Electrical Engineering, Automation & Control. Proposed Milestones $ More

$120 USD in 7 days
(6 Reviews)
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vijay27031985

12 yrs experience Instrumentation engineer well known about the sensing technologies Relevant Skills and Experience Day to day my works deals with the sensors and instrumentation/automation....that too im working in s More

$55 USD in 1 day
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balajimct

Let’s have an discussion first through Skype and I can assure you to give a best solution to you My Profile: Having 10+ years of experience in automation and little expertise in programming different types of PLC’s, H More

$35 USD in 1 day
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timpaulthomas

This is the classic issue with prox sensors in heavy equipment. We can solve the problem: sensors being damaged by impact/vibration/heat Relevant Skills and Experience I have spent the last 15 years trying to get pro More

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femijay11

Hello, from what you've explained one of the photo sensors would be the best. What's the temperature there with the steel rebar out of range? Are there other equipments in the area? Any form of magnetic material in ran More

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koncnc

I can help you. Relevant Skills and Experience My projects are on [login to view URL] [login to view URL] [login to view URL] More

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Hanif005

Why don't you use photoelectric sensor? I have some ideas if you hire me, because I have made some industrial machines in here. But, I need a picture of your problem to help you.

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zayedgrp

Electrical power & control Engineer, have experience with plc programming and have the ability to implment your Project as you like at the time. I can start from now.

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NoukraAutomation

Hello, I have two solutoin to resolve this problem, do you have a budget estimate for this project Relevant Skills and Experience Mechanical design skils, Automation engineering, technical selles engineer for a autom More

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autom2000

After analysing the process i can suggest you a better way to solve this issue to improve the productivity

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raheelahmed96

i am E & I engineer having more than 5 years of experience as automation specialist. this is very easy task i can guide you with cheapest solution for this Relevant Skills and Experience Automation specialist having m More

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