Design a low cost water sensor unit to measure •Water clarity (Turbidity between 5 NTU and 250 NTU)

$30-250 AUD

Cancelled

Posted

almost 8 years ago

$30-250 AUD

Paid on delivery

Objective; Design a low cost water sensor unit to measure; • Water clarity (Turbidity between 5 NTU and 250 NTU) This sensor / unit is to be deployed long term in a river. To provide a spot turbidity reading every 15 Minutes. Be connected to an Arduino / raspberry Pi and a 3G GPRS to upload data to a web domain What I Require; Require circuit diagram and unit schematic so as I can use to contact manufacturers to develop prototype. What I Suggest; Refer to “Sketch 01” on following page which uses; • TSL267 HIGH-SENSITIVITY IR LIGHT-TO-VOLTAGE CONVERTER • IR Laser Diode • Voltage reader • Arduino • Raspbery Pi • 3G GPRS • Solar panel powered battery Require your input for types of cables / battery voltage AC/DC Note: Open to your expertise on the issue / design. Please feel free to recommend other diodes / methods etc which you think would suit my needs better. Again this is for long term deployment so needs to be a robust and reliable unit. Have been informed that infrared laser emitting and detecting diodes will be less affected by ambient light. Open to your expertise to advise different if applicable

Electrical Engineering

Mechanical Engineering

Programming

Project ID: 11011744

About the project

10 proposals

Remote project

Active 8 yrs ago

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10 freelancers are bidding on average $637 AUD for this job

@chungtranduc89

Circuit design and technical document explaining the design concept in detail, max 5 pages. You can use a opaque tube to cover the sensor element from ambient light, issue can be resolved. Please feel free to discuss with us in more detail. Thank you.

$277 AUD in 5 days

4.9

(6 reviews)

4.3

@lotfislama

Hello. Thank you for your job description. I am an experienced developer of software and websites. I work quickly and to a high standard. Please let me know if I can help with your project.

$722 AUD in 10 days

0.0

(0 reviews)

0.0

@hegazy

I designed many monitoring stations as this one; and I have here tens of sensors, raspberries, and accessories. I already designed custom sensors for other projects, and welling to do the same with you. Hopefully I am not out of budget.

$3,488 AUD in 60 days

0.0

(0 reviews)

0.0

@blitzkraft

My experience in hardware design for robotics and automated data logging using the Raspberry pi and arduino makes me the Ideal candidate for this project. My experience also includes full product design and development. I can deliver you the the 3D models, drawings as well as circuit design so that a final product can be built immediately.

$277 AUD in 7 days