摘要:
Provided is a zeta-potential measurement jig set (100) capable of changing a sample or performing a plating process with a simple operation. The zeta-potential measurement jig set (100) includes a frame (200) and a measurement jig (300). The frame (200) includes a first and second holding wall (204,206), a bottom wall (202) that includes an anode plate (210) and a cathode plate (212), and a first lock portion (208). The measurement jig (300) includes a lower block (302), a cell (304) and a cell communication hole (326), a middle block (306) having a frame-like shape surrounding the recess in a plan view, an upper member covering an upper surface of the recess, and a second lock portion (312) pressing the upper member toward the bottom wall (202). The first lock portion (208) presses the middle block (306) toward the bottom wall (202).
摘要:
Provided are a particle size measurement method, a particle size measurement apparatus, and a particle size measurement program in which a needless measurement time period is omitted by setting an appropriate measurement time period in accordance with a particle size to be measured. The particle size measurement method includes: a test measurement step; an autocorrelation function calculation step; a setting step of setting a part of a plurality of measurement timings set in advance as measurement timings to be used for main measurement, based on a time period required until an autocorrelation function falls below a predetermined threshold value and a preliminary time period set and added to the time period; a main measurement step of measuring a main measurement intensity of scattered light during a main measurement time period; and a particle size calculation step of calculating a particle size of a sample.
摘要:
An optical measurement apparatus (1, 201, 301) includes a main body base (10), an optical base (11) movably combined with the main body base (10), a measurement optical system (30) fixed to the optical base (11), and an optical base moving mechanism (21)which moves the optical base (11) relative to the main body base (10). The optical base moving mechanism (21) moves the optical base (11) relative to the main body base (10) between an internal measurement position (11A) and an external measurement position (11B). At the internal measurement position (11A), a measurement object position (30a) of the measurement optical system (30) coincides with an internal measurement object position (30A) within the main body base (10). At the external measurement position (11B), a measurement object position (30a) of the measurement optical system (30) coincides with an external measurement object position (30B) outside the main body base (10).
摘要:
A spectrophotometer capable of measuring a plurality of dispersed beams selectively with a linear array sensor (7, 18), which consists of a single row of sensor members, by discharging beams selectively from the output terminals of optical fibers (3a-3c, 13a, 13b, 21) by means of beam selecting means (8a-8c, SW1, SW2).
摘要:
There is achieved a compact photodynamic therapy device with which a light amount of a light emitting element can be correctly detected by a limited number of photodetectors. A photodynamic therapy device of this disclosure includes: a light emitting unit (112, 112) including a plurality of light sources (110) each belonging to any one of a plurality of groups; a photodetector (120X, 120Y) configured to output an electrical signal corresponding to an amount of light received from one or more of the light sources (110); a light emission control unit (160) configured to sequentially cause the plurality of light sources (110) to emit light for each group; and a computing unit (151) configured to calculate, based on a distance coefficient related to a distance between the photodetector (120X, 120Y) and one or more of the light sources (110) belonging to the each group, and on a value of the electrical signal output by the photodetector (120X, 120Y) in accordance with light emitted from the one or more of the light sources belonging to the corresponding group, a group light amount value related to a light amount of the one or more of the light sources belonging to the each group.
摘要:
Provided is a photodynamic therapy device that enables efficient light irradiation of blood of a patient. A photodynamic therapy device (100) of this disclosure includes a cartridge (10) including a winding core and a tube arranged so as to be wound around the winding core, a casing (50) configured to accommodate the cartridge (10), and a light source (60), which is arranged inside the casing (50), and is configured to irradiate the tube with light. The tube arranged around the winding core has a cross section taken along a direction orthogonal to an extending direction of the tube, which has a first dimension in a first direction and a second dimension in a second direction orthogonal to the first direction. The second dimension is smaller than the first dimension. The second direction is directed outward with respect to the winding core.
摘要:
A microspectroscope (101) includes: a light source (11, 17); a plurality of light projecting optical fibers (12) that receive light from the light source (11, 17); a spectroscope (1); a plurality of light receiving optical fibers (22) for guiding received light to the spectroscope (1); and a confocal optical system (5) for causing each of a plurality of beams from the plurality of light projecting optical fibers (12) to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers (22).
摘要:
A sample (OBJ1) that is an object whose quantum efficiency is to be measured, and a standard object (REF1) having a known reflectance characteristic are each attached to a sample window (2) provided in a plane mirror (5). Based on respective spectrums measured by a spectrometer in respective cases where the sample (OBJ1) is attached and the standard object (REF1) is attached, the quantum efficiency of the sample (OBJ1) is measured. The plane of an opening of an observation window (3) is made substantially coincident with the exposed surface of the sample (OBJ1) or standard object (REF1), so that direct incidence, on the observation window (3), of the fluorescence generated from the sample (OBJ1) receiving an excitation light (L1) and the excitation light (L1) reflected from sample (OBJ1) is prevented.