Circut Design and Prototype - Pressure Sensor LED Readout

Completed Posted Jul 9, 2010 Paid on delivery
Completed Paid on delivery

I require a circuit design and prototype for a medical device that will convert hand grip pressure on a cylindrical object constructed of medical grade silicone to a LED Readout. The LED 5-bar readout will have red red amber amber green indicator of handgrip pressure on the cylindrical silicone bar. The bar readouts will indicate levels of pressure from soft (bottom red) to firm (green) Actuation of the sensor/readout will occur on application of pressure. De-activation will occur ~60 seconds after last activity. The power source will be a button battery. The construct must use smallest possible components. The sensor must operate being encased in Medical Grade Silicone. As it is a medical device, the sensor must be able to tolerate (in off state) 140 degrees Celcius in an Autoclave. The LED readout and power and MCU circuit will be detatchable to avoid autoclave. The force range would be 0 - 100kpa, and the sensor preferably must be cylindrical and measure lateral forces on the cylinder of med grade silicone. This will be used to measure grip strength of infants. Smaller is better. The sensor should read approx 0 - 100KPa.

A sensor range need to be indicated due to dampening of the force due to the Silicone. That is - the grip strength will be 0 - 100kpa, but I need to be able to interchange the sensor to accommodate the dampening effect of the Silicone till I get an appreciable reading. The other way that this could be acheived is calibrating the MCU to account for the loss of sensitivity or having an adjustable sensitivity.

The bid will include 1 Comprehensive Circiut Design and component list with specs, 2 Working Prototype (not including silicone encasement) 3 Posting the prototype to Canberra Australia - Address to be supplied to winning bid.

Electrical Engineering Electronics Instrumentation Microcontroller PCB Layout

Project ID: #734184

About the project

23 proposals Remote project Active Jul 23, 2010

Awarded to:

jobykpaul

Presently I am doing a project similar to this, in fact we developed a grip kind mechanism (almost similar to your requirement) to test and calibrate the sensor assembly by holding and squeezing. I have 6+years experie More

$180 USD in 60 days
(35 Reviews)
7.4

23 freelancers are bidding on average $1092 for this job

geobabu

Hi, our team is handling the design and development of the customized requirement of our clients. Regarding this requirement, we are glad to provide an efficient solution to you. Regards, Geo

$725 USD in 50 days
(6 Reviews)
5.0
bchandra1955

Professional automation engineer with 33 year sof product design experience. See MB. Brajesh

$750 USD in 75 days
(11 Reviews)
4.4
zszabo

Hi, Please read PM. B.R. Zoltan

$1000 USD in 20 days
(2 Reviews)
3.9
amitj9

Hi, Wehave worked a lot on data aquisition and sensors for weather stations, power stations and instrumentation. Wehave a total of 70 man years of experience in microcontroller designs, LED designs, embedded harw More

$750 USD in 30 days
(2 Reviews)
2.6
sunlitetech

Please check your PMB Regards, Arun

$700 USD in 15 days
(1 Review)
2.0
lerazam1977

Please, check your PM!

$600 USD in 10 days
(1 Review)
1.4
fritz194

I actually worked the last 6 months on a system with very similar needs in measuring pressure. Somehow I would suggest to detach sensor+electronics for the autoclave (because of contact issues sensorelectronics) Othe More

$750 USD in 14 days
(0 Reviews)
0.0
prabhuchinnasamy

Dear Jshed, We have developed photo calorimeter in medical instruments side, and a lot in other disciplines. What type of sensor your expecting, and please tell about its availability.

$750 USD in 45 days
(0 Reviews)
0.0
makinmakin

See details in MB.

$600 USD in 15 days
(3 Reviews)
4.5
blackboxengineer

This seems like a simple project, assuming the cylinders are easy to manipulate.

$750 USD in 21 days
(0 Reviews)
0.0
MikiNoel

Hello, Pls. see the PMB for details. Best Regards, Miki

$1500 USD in 45 days
(0 Reviews)
0.0
rwender

Electrical engineer with 20+ years embedded design experience. Please see Private Message Board for additional details.

$700 USD in 30 days
(0 Reviews)
0.0
ShamanicChant

You underevaluated the project.

$1000 USD in 5 days
(0 Reviews)
0.0
jewelltech

My company has designed EMG sensors and readouts in the past for golfing applications to help improve hand-grip pressure. Your application is similar allbeit a liitle more robust. We are also familiar with medical dire More

$750 USD in 36 days
(0 Reviews)
0.0
geei

Hi I'm a medical device developer with more than 20 years experience in this field. PCBs and software, but also complet devices are my daily work. Pressure sensores and materials, which resist autoclaving are usual. T More

$3000 USD in 15 days
(0 Reviews)
0.0
chinnisudha

Hi, I can complete your project. Thanks sudha

$800 USD in 100 days
(0 Reviews)
0.0
advanteck

we are advanteck solutions from india and we are working on Embedded systems, industrial automations, DSP processors, FPGA, Labview., PCB design and manufacturing.

$800 USD in 15 days
(0 Reviews)
0.0
CISIUM

Hi, we can do this product! CISIUM is specialized in embedded product development. We have experience in small circuits measuring environmental variables like light, accelerometer, temperature, air pressure sensor, More

$4550 USD in 45 days
(0 Reviews)
0.0
Edivervizcay

I am reali interested to do it.

$700 USD in 45 days
(0 Reviews)
0.0
cwmccarthy

Hello, I'm an Electrical Engineer based outside of Boston, Massachusetts, USA. I have a couple quick questions, which I'll send you via PM, but otherwise I'd be interested to work with you on this project.

$2000 USD in 30 days
(0 Reviews)
0.0