摘要:
An electromechanical transducer includes: a structural portion configured such that two pairs of magnets magnetized in opposite directions, a yoke configured to guide magnetic fluxes from the magnets, and a coil configured to receive a supplied electric signal are located integrally; an armature having an inner portion penetrating an internal space of the structural portion and outer portions protruding from the inner portion toward both sides in a first direction, forming, together with the structural portion, a magnetic circuit through regions of the inner portion facing the two pairs of magnets, and configured to displace in a second direction perpendicular to the first direction by magnetic force of the magnetic circuit; and a pair of elastic members each located on both sides of the armature in the second direction, and configured to provide, to the armature, restoring force according to relative displacement of the armature corresponding to the structural portion.
摘要:
A microbial particle is accurately counted in distinction from a non-microbial particle. A preceding-stage irradiation section 2 irradiates a sample as fluid with ultraviolet light at a preceding stage of a microbial particle counter 1. The ultraviolet light is ultraviolet light having a deep ultraviolet region, the ultraviolet light increasing the fluorescence intensity of a first autofluorescence substance in the microbial particle. The microbial particle counter 1 measures light intensity in a first wavelength range including the fluorescence wavelength of the first autofluorescence substance. In addition, the microbial particle counter 1 measures light intensity in a specific second wavelength range. Further, the microbial particle counter 1 counts the microbial particle in distinction from a non-microbial particle in the fluid based on the measured light intensity in the first wavelength range and the measured light intensity in the specific second wavelength range.
摘要:
A sound source separation apparatus includes: a separation-matrix processor that transforms a plurality of observation signals corresponding to sounds being propagated from a plurality of sound sources into a frequency-domain signal group the separation-matrix processor updating a separation matrix based on the frequency-domain signal group and transforming the updated separation matrix into time-series filter coefficients to output; a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, and a separator that supplies the filter coefficients to a filter group, the separator generating a plurality of separation signals separated from the plurality of observation signals corresponding to the separation matrix.
摘要:
The present disclosure relates to an apparatus for manufacturing a nerve conduit, more particularly to an apparatus for manufacturing a porous nerve conduit using glass fibers whereby microchannels are formed using the space between the glass fibers and the defective rate and location-dependent variation of each nerve conduit can be minimized through uniform decompression during the manufacture. The nerve conduit manufactured according to the present disclosure can be manufactured to have various diameters and lengths to be applicable to in vitro and in vivo researches on nerves.
摘要:
An irradiation optical system 12 irradiates a fluid flowing in a flow passage 2a with one light among a plurality of lights obtained by branching light from a light source 1 and forms the detection area. A detection optical system 13 makes scattered light with a different direction from an optical axis of the irradiation optical system enter a beam splitter 17 among the scattered lights from particles contained in the fluid in this detection area. Meanwhile, a beam expander 16 makes another light among the plurality of lights enter the beam splitter 17 as reference light. A detector 4 receives an interference light, by the scattered light and the reference light, obtained by the beam splitter 17 by light receiving elements and generates a detection signal corresponding to the interference light. A counting unit 6 counts the particles based on this detection signal.
摘要:
An electromechanical transducer of the invention comprises a structural unit, an armature, and first and second elastic members. The structural unit includes at least one pair of magnets, a yoke conducting a magnetic flux generated by the magnets, and a coil supplied with an electric signal. The armature has an inner portion disposed to pass through an internal space of the structural unit and first and second outer portions protruding on both sides from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in directions opposite to each other in the inner portion. The first and second elastic members connect between the first and second outer portions of the armature and the structural unit, respectively.
摘要:
A reverberation suppression apparatus includes: an instantaneous value calculation unit that calculates an instantaneous value/instantaneous values in an envelope of values correlating with the absolute value or the square of an input signal; a reverberation estimation unit that calculates an exponential moving average of the instantaneous value(s) as an estimated reverberation component; a gain derivation unit that derives a gain corresponding to the input signal according to the estimated reverberation component and the instantaneous value(s) when the each instantaneous value is larger than the estimated reverberation component, and derives a lower limit of the gain as the gain corresponding to the input signal when the each instantaneous value is smaller than the estimated reverberation component; a smoothing unit that performs a smoothing process on the gain; and a gain processing unit that applies the gain to amplitude adjustment of the input signal thereafter.
摘要:
A viable particle counting apparatus 77 includes devices 10, 70, 2. The device 10 radiates a light with a predetermined wavelength toward a liquid containing a detection target. The device 70 reduces a Raman-scattered light emitted from the liquid out of lights emitted due to an interaction of the light radiated by the device 10 with the target or the liquid and selects an autofluorescence light emitted from the target. The device 2 determines whether or not the target contained in the liquid is a viable particle, based on a light obtained after the Raman-scattered light is reduced by the device 70. The device 10 radiates the light with a wavelength that causes the autofluorescence light and the Raman-scattered light to be different in peak wavelength.
摘要:
A particle counting system includes a collector, a liquid input/output operation executing means, and a particle counter. The collector performs a collecting operation to introduce the surrounding air into a container storing a liquid to collect airborne particles in the liquid. The liquid input/output operation executing means executes a series of liquid input/output operations to supply an additional liquid for the collecting operation to the collector and discharge the liquid after the collecting operation from the collector. The particle counter measures the number of particles contained in the liquid discharged from the collector with the series of liquid input/output operations.