Abstract:
PURPOSE: A system and a method for measuring one or more materials are provided to cheaply measure materials and to simplify optical constitution. CONSTITUTION: A fluidic assay system comprises: a fluidic flow-through chamber(10); a light sub-system for lighten an image section of the fluidic flow-through chamber; and a light detection sub-system for lightening the imaging section of the fluidic flow-through chamber. The back portion of the imaging section has the surface which is roughly treated. A sample is transmitted from a sample storage bezel into an imaging system by a sample collection probe(15).
Abstract:
A method for determining the composition and/or the concentration of gas in a sample using a spectrometer comprises: a step of measuring the adsorption signals of gas as a wavelength function; a step of converting the adsorption signals to one or more first induction signals; a step of inducing gas concentration measuring parameters from the first induction signals; and a step of determining the composition and/or the concentration of the gas from a calibration function which can compensate influences caused by the gas concentration measuring parameters, the parameters of device properties of the spectrometer, and the parameters of gas stages. In the step of measuring the adsorption signals of the gas, wavelengths continuously pass within a wavelength range, and are overlapped by harmonic wavelength modulation. Also, the influences of the wavelength modulation about the adsorption signals through light source modulation properties and the detection properties of the spectrometer follow the device properties of the spectrometer. The calibration function includes a parent calibration function and a device calibration function. Herein, one or more gas concentration measuring parameters induced from the induction signals and the parameters of the gas states are applied to the parent calibration function and are selected to compensate the light source modulation properties of the spectrometer. Also, the device calibration function considers the detection properties of the spectrometer. [Reference numerals] (13) Device properties; (14) Light source modulation properties; (15) Number of particles (N); (16) Detection properties; (17') Section y'f signal {F(y'f)}; (21) Concentration; (23) Ratio {V=F(xf)/F(yf)}; (25) Width xf signal {B(zf)}; (27) Parent calibration function {K_M(p, T, X, F, V, B)}; (29) Device calibration function (K_G); (AA) Pressure (p); (BB) Temperature (t); (CC) Carrier gas (X); (DD) Section xf signal {F(xf)}; (EE) Section yf signal {f(yf)}
Abstract:
PURPOSE: A method for measuring online in a simulated moving bed unit is provided to measure concentration accepting temperature using matrix inverse induced from prior correction. CONSTITUTION: Monochromatic signals generated from a laser source(1) are transmitted through a first optical signal connected to an immersion probe(3). Raman signals are obtained through a second optical fiber connected to the immersion probe. The Raman signal is transmitted to a spectrometer(5) using a filter determining cut-off threshold value. The Raman spectrum of object signals is collected from the outlet of the spectrometer.
Abstract:
The present invention relates to a method and to an electronic arrangement (6) for causing a temperature depending error compensation to measured values, said compensation is related, among other things, to a "drift" error source, in respect of measuring processes which utilise a sensor (1). Electronic circuits (6) are adapted to establish the presence of one or more gases and/or gas mixtures and/or to calculate the concentration of such a gas or gas mixtures. A highest measurement value (Mmax) or a lowest measurement value (Mmin) occurring and established during a chosen measuring cycle (T1) shall be stored in a memory (69'). It is particularly proposed; that a lowest analogue value or a highest digitalised measurement value occurring and evaluated during a chosen time period (T1) shall be stored in said memory (69'); that the occurring and evaluated measurement value (Mmax; Mmin) at the end of a chosen measuring cycle or time period (T1) shall be compared with a stored analogue or through an A/D-converter digitalised control value (65'); and that a discrepancy between the evaluated measured lowest or highest values and said stored control value is used as the basis for related and/or corresponding compensation (K1) of the measurement values occurring in a following time period (T2).
Abstract:
분광계를 이용하여 샘플에서의 가스(15)의 농도 및/또는 가스(15)의 조성을 결정하는 방법은: 파장이 실질적으로 연속적으로 파장 범위를 통과하는 방사(19)를 전달하는 단계 -여기서, 파장 범위의 연속적인 통과는 파장 변조, 바람직하게는 실질적으로 조화 파장 변조에 의해 중첩됨- ; 상기 가스(15)에 의한 상기 방사(19)의 흡수로부터 흡수 신호(29)를 상기 방사(19)의 파장의 함수로 측정하는 단계(27); 상기 흡수 신호(29)를 제1 미분 신호로 변환하는 단계(31); 상기 제1 미분 신호(33)로부터 적어도 하나의 제1 측정 가스 농도 값(39)을 도출하는 단계(37); 상기 적어도 하나의 제1 측정 가스 농도 값(39)으로부터 상기 가스(15)의 농도 및/또는 조성(49)를 결정하는 단계(47)를 포함하고, 상기 파장 변조는 상기 가스(15)의 적어도 하나의 상태 변수의 변화에 대응하여 적응되며, 상기 방법은: 상기 흡수 신호(29)를 제2 미분 신호(35)로 변환하는 단계(31); 상기 제2 미분 신호(35)로부터 적어도 하나의 제2 측정 가스 농도 값(41)을 도출하는 단계(37)를 더 포함하는 것을 특징으로 하고, 상기 파장 변조는, 상기 제1 측정 가스 농도 값(39)과 상기 제2 측정 가스 농도 값(41)의 비(43)가 실질적으로 일정하게 유지되도록, 바람직하게는 연속적으로, 순응되는(45) 것을 특징으로 한다.