发明名称 |
SYSTEMS AND METHODS FOR DETECTING CHANGE IN SPECIES IN AN ENVIRONMENT |
摘要 |
A method for determining the concentration of an analyte is provided. The method comprises: applying an alternating voltage to a first electrode and a second electrode of a sensor in the presence of the analyte; measuring a first capacitance of the sensor in presence of the analyte; irradiating the analyte for a predetermined time period at a discrete frequency within a predetermined frequency range; measuring a second capacitance of the sensor at an end of the predetermined time period; determining a difference between the first and second capacitances; and determining the concentration of the analyte based on the difference. Also, the method includes determining a composition of an analyte. The discrete frequency is associated with the difference to determine a frequency response. The frequency response is used to determine the composition of the analyte. |
申请公布号 |
US2016238580(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
US201514837147 |
申请日期 |
2015.08.27 |
申请人 |
FREESCALE SEMICONDUCTOR, INC. |
发明人 |
KUNDALGURKI SRIVATSA G. |
分类号 |
G01N33/00;G01N27/22 |
主分类号 |
G01N33/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for determining a concentration of an analyte, the method comprising:
applying an alternating voltage to a first electrode and a second electrode of a sensor in the presence of the analyte; measuring a first capacitance of the sensor in presence of the analyte; irradiating the analyte for a predetermined time period at a discrete frequency within a predetermined frequency range; measuring a second capacitance of the sensor at an end of the predetermined time period; determining a difference between the first and second capacitances; and determining the concentration of the analyte based on the difference. |
地址 |
AUSTIN TX US |