公开(公告)号：US20070258083A1

公开(公告)日：2007-11-08

申请号：US11734261

申请日：2007-04-11

Applicant: Kevin Heppell ,  James Braig

Inventor： Kevin Heppell ,  James Braig

IPC: G01N33/48

CPC classification number: A61B5/14532 ,  A61B5/1459 ,  G01N21/07 ,  G01N21/274 ,  G01N21/35

Abstract: Methods and apparatus are provided for determining the concentration of an analyte in a sample, such as an analyte in a sample of bodily fluid. Some embodiments use a synchronous demodulator and digital filter to reduce microphonic signal content. Some embodiments monitor the microphonic signal content and “hold off” on making a measurement until vibrations subside. Monitoring can be performed using an accelerometer or other vibration sensor. An algorithm can be used to examine the detector output signal and detect excessive microphonic components, making an accelerometer unnecessary.

Abstract translation: 提供了用于确定样品（例如体液样品中的分析物）中的分析物的浓度的方法和装置。 一些实施例使用同步解调器和数字滤波器来减少麦克风信号内容。 一些实施例监视麦克风信号内容并在进行测量时“保持”，直到振动消退。 可以使用加速度计或其他振动传感器进行监视。 可以使用一种算法来检测检测器输出信号并检测过多的麦克风分量，使加速度计不必要。

公开(公告)号：US20070278384A1

公开(公告)日：2007-12-06

申请号：US11756574

申请日：2007-05-31

Applicant: Kevin Heppell

Inventor： Kevin Heppell

IPC: G01J1/32

CPC classification number: G01J3/108 ,  G01N21/35 ,  G01N2201/06186 ,  H05B1/025

Abstract: A method and apparatus are described for driving a modulated radiation source (which can be, for example, an infrared light source). The method affects the power driving a light source in such as way so as to minimize the warm-up time of the source. The apparatus permits feedback control of a light source to specified powers or temperatures. Disclosed embodiments can improve source performance and lifetime and decrease the operating costs of the source.

Abstract translation: 描述了用于驱动调制辐射源（其可以是例如红外光源）的方法和装置。 该方法影响以这种方式驱动光源的功率，以便最小化源的预热时间。 该装置允许光源的反馈控制到指定的功率或温度。 公开的实施例可以改善源性能和寿命并降低源的操作成本。