I also don't usually give "Try Google" answers but I typed it into Google and there were so many references I didn't want to read them all, select the best one (in my opinion) and quote it. Better the OP should see all the information for himself.You know, generally I don't like "Go ask Google" answers but, in this case, I sorta have to agree with @Mr_Pot : we're all just folks with diabetes here, none of us build, design, maintain or manufacture our meters. Google is a far better source of technical stuff than us...
... and this is the moment when someone who does build, design etc glucometers posts
I haven't built a meter but I did study electronics and they basically work through passing a small electrical current through the blood and measuring resistance I think. It all gets a bit complex because the test strips contain chemicals which transform the blood into something that can be measured.
So a combination of chemical change through the strip then passing an electrical current. I think....
Hence why the strips need to be carefully kept. All kinds of things can send them off a bit - moisture in the air as an example.Google comes up with these two links that should blind the OP with science.
https://en.wikipedia.org/wiki/Glucose_meter
https://engineering.mit.edu/engage/ask-an-engineer/how-do-glucometers-work/
The magic in the strips is glucose oxidase an enzyme that reacts with blood, there is more but the OP can read for them self.
Most people keep the strips in the container till they need, not laying loose on the table etc.Hence why the strips need to be carefully kept. All kinds of things can send them off a bit - moisture in the air as an example.
Most people keep the strips in the container till they need, not laying loose on the table etc.
I go through a tub of fifty strips a week, so no worries there.Yes - it says to do that on the pack. But each time you open the lid - it gets contaminated - which is why I guess you only have so many days before the strips need to be used.
I have lost the lot on opening the pot over the table, but they went back in as they were not exposed to any moisture.I am so clumsy I have tipped a whole pot of SD code free out and had to throw them away....
Yes - it says to do that on the pack. But each time you open the lid - it gets contaminated - which is why I guess you only have so many days before the strips need to be used.
Can anyone explain to me please how do blood glucose meters work?
How is the glucose absorbed to the sensor?
How is the glucose converted into electronic signal?
How is the glucose calculated per volume of blood?
I am not sure which ones you use, I use the abbott ones. They have a triangle strip on the side - you tear down, really easy and it reveals the circuit end keeping the business end still in tin foil. You insert into the meter and pull the tin foil off and you have a perfect - contamination free - strip that has had no chance at all of having any contamination.The ones in foil are awful. Getting them out of the foil I must contaminate them, and sometimes bend them. I threw mine away. I just use the accuchek cassettes now. No handling.
I am not sure which ones you use, I use the abbott ones. They have a triangle strip on the side - you tear down, really easy and it reveals the circuit end keeping the business end still in tin foil. You insert into the meter and pull the tin foil off and you have a perfect - contamination free - strip that has had no chance at all of having any contamination.
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