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A study on Non-invasive blood glucose estimation -An approach using capacitance measurement technique

机译：使用电容测量技术研究非侵入性血糖估计-AN方法

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Continuous blood glucose monitoring can help and prevent hyperglycemia level in diabetic patients. In the present study we aimed to estimate the blood glucose concentration using cost effective non-invasive forearm capacitance measurement technique. This technique is based on the fact that glucose level affects the dielectric properties of blood and underlying tissue. Test procedures were performed on 10 healthy subjects with age ranging from 25 to 35 years in two phases using a designed parallel plate capacitor circuit. Forearm part act as a dielectric medium of parallel plate capacitor and 555 timer circuits is used to produce pulse waveform based on measured capacitance. In first phase, capacitance was measured after consumption of sucrose (table sugar). In second phase, capacitance was measured after consumption of artificial sweetener. A total of 25 trials were made during the whole testing process. We observed that as the blood glucose value increases, magnitude of measured capacitance value also decreases. Therefore the trend of measured capacitance obtained after sucrose consumption is similar to the trend which was already established in oral glucose tolerance (OGT) test. Hence our results are promising and show the potential of this technique in predicting in-vivo blood glucose concentration; however, further improvement of the accuracy of the device is needed by doing more trails.
机译：连续血糖监测可以帮助和预防糖尿病患者的高血糖水平。在本研究中，我们旨在利用成本效益的非侵入性前臂电容测量技术来估算血糖浓度。该技术基于葡萄糖水平影响血液和底层组织的介电性质的事实。使用设计的平行板电容器电路，在10阶段的10个健康受试者上进行测试程序，使用25至35倍。前臂部分用作平行板电容器的介质介质，并且使用555个定时器电路基于测量的电容产生脉冲波形。在第一阶段，在蔗糖的消耗后测量电容（表糖）。在第二阶段中，在人造甜味剂消耗后测量电容。在整个测试过程中共进行了25项试验。我们观察到，随着血糖值的增加，测量电容值的幅度也降低。因此，在蔗糖消耗后获得的测量电容趋势与在口腔葡萄糖耐量（OGT）测试中已经建立的趋势类似。因此，我们的结果是有前途的，并且展示了这种技术在预测体内血糖浓度方面的潜力;然而，通过做更多的路径，需要进一步提高设备的准确性。

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