公开(公告)号：US06494616B1

公开(公告)日：2002-12-17

申请号：US09632405

申请日：2000-08-04

申请人： Eugene Tokhtuev ,  Robert M. Carlson ,  Christopher J. Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Alexander Tokhtuev

发明人： Eugene Tokhtuev ,  Robert M. Carlson ,  Christopher J. Owen ,  Anatoly Skirda ,  Viktor Slobodyan ,  Alexander Tokhtuev

IPC分类号： G01K300

CPC分类号： G01K1/026 ,  G01D3/02

摘要： A sensor array includes a plurality of sensors connected to two or more groups of wires such that individual sensors can be addressed. No two sensors are connected to the same two wires. The groups of wires are connected to multiplexers or the like to address particular wires connecting a unique sensor. Dramatically improved accuracy is obtained by connecting rectifiers in series with the sensors to significantly reduce reverse current through a sensor that can lead to significant errors. In some preferred embodiments, the array includes a plurality of temperature sensors, especially for use in measuring temperature at different depths in a body of water

摘要翻译： 传感器阵列包括连接到两组或多组电线的多个传感器，使得各个传感器可被寻址。 没有两个传感器连接到相同的两根电线。 电线组连接到多路复用器等以寻址连接独特传感器的特定电线。 通过将整流器与传感器串联连接获得显着提高的精度，以显着减少通过传感器的反向电流，从而导致严重的误差。 在一些优选实施例中，阵列包括多个温度传感器，特别是用于测量水体不同深度处的温度

公开(公告)号：US06486474B1

公开(公告)日：2002-11-26

申请号：US09374719

申请日：1999-08-13

申请人： Christopher J. Owen ,  Eugene Tokhtuev ,  Anatoly Skirda ,  Robert M. Carlson ,  Alexander Tokhtuev ,  Viktor Slobodyan

发明人： Christopher J. Owen ,  Eugene Tokhtuev ,  Anatoly Skirda ,  Robert M. Carlson ,  Alexander Tokhtuev ,  Viktor Slobodyan

IPC分类号： G01N110

CPC分类号： G01N21/3504 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/42 ,  G01N21/031

摘要： An infrared spectrometer for the determination of isotopic ratios of gaseous compounds includes a broad-band infrared light source, a spectral selector, a sample compartment, an infrared detector, and a processor. The spectral selector selectively transmits a wavelength window of infrared light covering a range of wavelengths in which the wavelength window can be selected alternatively to overlap with a wavelength range primarily absorbed by a compound with a first isotope or by the compound with a second isotope. The sample compartment holds a gas sample and includes a gas inlet and a gas outlet. The infrared spectrometer can be used to detect isotopic ratios of carbon dioxide, where enhancement of 13CO2 can indicate metabolic activity of an infection, for example by H. pylori, or of specific enzymes. Preferred embodiments use a particular multipass optical cell that includes a field mirror and a multi-segment objective mirror.

摘要翻译： 用于测定气体化合物的同位素比率的红外光谱仪包括宽带红外光源，光谱选择器，样品室，红外检测器和处理器。 频谱选择器选择性地透射覆盖波长范围的红外光的波长窗口，其中波长窗口可以选择性地与主要被具有第一同位素的化合物吸收的波长范围重叠，或者与具有第二同位素的化合物重叠。 样品室容纳气体样品，并包括气体入口和气体出口。 红外光谱仪可用于检测二氧化碳的同位素比例，其中13CO2的增强可以指示感染的代谢活动，例如幽门螺杆菌或特异性酶。 优选实施例使用包括场反射镜和多分段物镜反射镜的特定多通道光学单元。