电子秤简介
利用新技术测量物体的重量。其中包括古典(牛顿)物理学。-----------------------------------------------------------------------------Yourphone’stouchscreeniscapacitiveandnotabletomeasurepressure.HoweverthisapplicationusesanoveltechniquewhichinvolvesthelawsofClassical(Newtonian)Physicstomeasurethemassandobtaintheweightofanobject.AccordingtoNewton’ssecondlawofmotion,massofanobjectisequaltotheappliedforcedividedbytheobject’sacceleration.Byturningonyourphone’svibratorweapplyarotatingforcetothephoneandusingtheaccelerometer,theresultingaccelerationismeasured.Themeasurementisrepeatedwiththeobjectplacedonthephonescreen.Usingthesetwomeasurements,themassandweightoftheobjectcanbemeasured.TheresultisdisplayedinOuncesaswellasGrams. 展开
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