摘要:
This chip for measuring number of microbe comprises a chip main body (15A) in the form of a long plate, a measuring electrode (16) that is provided on a first end side in the longitudinal direction of the surface of the chip main body (15A) and that is immersed in a measurement liquid, and a connecting electrode (17) that is connected to the measuring electrode (16) and is provided on a second end side in the longitudinal direction of the surface of the chip main body (15A). Ground electrodes (37A and 37B) are provided on the second end side in the longitudinal direction of the surface of the chip main body (15A). Conductive patterns (34A, 34B and 34C) that are provided to the outer peripheral portion of the measuring electrode (16) are connected to the ground electrodes (37A and 37B).
摘要:
A sample gas is introduced into a collecting pipe filled with a collecting agent to collect odor components therein, and a gas, such as nitrogen gas, is introduced into the collecting pipe to remove moisture and so on. Then, a heater is heated to raise a temperature of the collecting pipe so that a part of the odor components adsorbed by the collecting agent is separated therefrom, and then, a carrier gas is supplied to the collecting pipe to send the separated odor components to a sensor. After a predetermined time has passed, the heater is further heated to send the separated odor components to the sensor. The heater may be further increased. Thus, an output information of the gas sensor in one cycle of measurement can be increased.
摘要:
An isotope gas measuring apparatus for measuring concentrations of components in a sample gas includes two sample cells through which the sample gas passes; a control cell filled with a gas having no absorbance at a wavelength of infrared light to be measured; a light source irradiating infrared light to the sample cells and the control cell; an optical coupler for coupling light permeated from the sample cells and the control cell; a first interference filter disposed between one sample cell and the optical coupler; a second interference filter disposed between the other sample cell and the optical coupler; and an optical detector for detecting infrared light from the optical coupler. The apparatus can minimize an influence of drift, and have a simple structure.
摘要:
In a liquid crystal thick cell light modulator using ferroelectric liquid crystal, a series of voltage pulses with an asymmetrical duty ratio (that is, duty ratio of 55-85%) is applied between a pair of electrode plates containing the ferroelectric liquid crystal. In another liquid crystal thick cell light modulator using ferroelectric liquid crystal, a DC bias voltage is added to the voltage pulses, where the magnitude of the DC bias voltage is 20-50% of the half amplitude of the voltage pulses. In still another liquid crystal thick cell light modulator, the gap length between the electrode plates is larger than 50 .mu.m, and the helical pitch in smectic C phase of the ferroelectric liquid crystal is 0.7 to 0.95 times the gap length.
摘要:
An odor discriminating apparatus includes: a measurement chamber including multiple pieces of odor sensors; a gas introducer for introducing a sample gas into the measurement chamber; concentration adjuster for diluting or condensing the sample gas before introducing the sample gas into the measurement chamber; a vector length computation unit for plotting, in a multidimensional space formed by axes corresponding to detection signals generated by each piece of odor sensors, a measurement point representing a measurement result of the sample gas and for computing a vector length of an odor vector directed from an origin of the multidimensional space to the measurement point; and a controller for feedback-controlling the concentration adjuster so that the vector length computed by the vector length computation unit reaches a predetermined target value.
摘要:
An odor discriminating apparatus includes: a measurement chamber including multiple pieces of odor sensors; a gas introducer for introducing a sample gas into the measurement chamber; concentration adjuster for diluting or condensing the sample gas before introducing the sample gas into the measurement chamber; a vector length computation unit for plotting, in a multidimensional space formed by axes corresponding to detection signals generated by each piece of odor sensors, a measurement point representing a measurement result of the sample gas and for computing a vector length of an odor vector directed from an origin of the multidimensional space to the measurement point; and a controller for feedback-controlling the concentration adjuster so that the vector length computed by the vector length computation unit reaches a predetermined target value.
摘要:
An image processing apparatus and a shading-information acquisition device have a sample table (21) adapted to rotate in a direction (θ1) about a rotational axis (Z1) and to rotate in a direction (θ2) about a rotational axis (Z2). An irradiation assembly (3) includes a support plate (31) adapted to rotate in the direction (θ1) about the rotational axis (Z1), an irradiation arm (33) adapted to rotate in a direction (θ3) about the rotational axis (Z3) and provided with a light radiation aperture (331) at the top end thereof. An optical fiber cable (36) guides light from a light source unit (34) to the light radiation aperture (331), and a camera (4) is disposed outside a dark box (6). The image processing apparatus and shading-information acquisition device perform a realistic shading processing for a virtual 3-dimensional model by a simple operation without complicated jobs for setting up various parameters.
摘要:
A chip that measures a number of microbes includes a chip main body in the form of a long plate, and a measuring electrode provided on a first end side in the longitudinal direction of the surface of the chip main body and that is immersed in a measurement liquid. A connecting electrode is connected to the measuring electrode and is provided on a second end side in the longitudinal direction of the surface of the chip main body. Ground electrodes are provided on the second end side in the longitudinal direction of the surface of the chip main body. Conductive patterns provided to the outer peripheral portion of the measuring electrode are connected to the ground electrodes.
摘要:
In an odor measuring apparatus, a plurality of detection outputs with respect to a sample gas is obtained by a plurality of odor sensors having different response characteristics. In an odor fractionation processing section, based on the detection outputs, it is determined which one of a plurality of predetermined odor categories the odor of the sample gas belongs to. In case of calculating an odor index from the detection outputs, the same regression line can be utilized for the same odor category. An odor index calculating section utilizes regression coefficients determined in advance for each odor category, to thereby calculate the odor index. Accordingly, without using an organoleptic test by panels, the odor index can be obtained easily and accurately.
摘要:
Thermal detectors comprising at least one pair of membrane electrodes formed on a base material (such a pyroelectric, semiconductive and insulating materials), wherein at least one member of said pair of electrodes is covered with a black membrane of precious metal formed by the electrolytic process, are highly sensitive because of the excellent heat absorption efficiency, with little change in sensitivity over a wide wavelength range.