Measuring the strength of tea

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nina1113
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Project Question: how to measure the strength of tea
Project Due Date: 11/11/13
Project Status: I am conducting my research

Measuring the strength of tea

Post by nina1113 »

What kind of specifications do i need for the Photoresistor need in this science project? Went to Radio Shack and they had many options, can any one help me please? :)

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amyC
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Re: Measuring the strength of tea

Post by amyC »

Hi - I talked with some Experts about the photoresistor for this project (and Radio Shack's offerings).

Radio Shack sells a 5-pack:
276-1657

The pack does include cells with varying resistance.

For this project, the resistance should not matter. Any CdS photoresistor will work as long as you don't compare readings between devices made with different CdS photoresistors. As long as you set things up, keep the room light constant during the test, and don't try to infer data by comparing one cell setup to another, you should be okay using any of the ones in the pack.

Amy
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