Abstract: A placement holder 1 for an analysis according to the present invention includes a frame portion 10 for placing an analysis plate, and a coupling portion 11; wherein the analysis plate includes, respectively at opposite ends in a longitudinal direction thereof, protrusions protruding in the longitudinal direction; the frame portion 10 includes a pair of wall portions that are opposed to each other, and a space surrounded by the frame portion 10 has an area 12 in which the analysis plate is to be placed; the pair of wall portions have a pair of cavities 13 into which the protrusions of the analysis plate are to be inserted, and at least one of the pair of cavities 13 is a through hole; the wall portion having the through hole has, on an inner surface thereof, an inclined surface 14 formed such that an interval between inner surfaces of the pair of wall portions gradually decreases from an upper end side toward the through hole of the wall portion; and the coupling portion 11 is disposed below the pair of cavit

Abstract: FETs used in a conventional current-to-voltage converter lack current-to-voltage conversion efficiency when operated at cryogenic temperatures, and it is difficult to sensitively measure current. A desired low-temperature environment cannot be realized either due to the heat inflow into a cooling device from outside. A current-to-voltage converter is provided that sensitively measures small currents even in extremely low-temperature conditions. The current-to-voltage converter of the present disclosure uses elements exclusively optimized for low-temperature operation (e.g., HEMTs) as electronic elements for current-to-voltage conversion. Significantly more excellent current-to-voltage conversion characteristics than those of the conventional technique are realized even when the current-to-voltage converter is operated at a low temperature of 150K or less or in cryogenic temperature conditions close to absolute zero.

Abstract: When a current-to-voltage converter is used at low temperatures, the frequency band of measurable small currents is limited. Stray capacitance of a coaxial cable that takes out an output voltage of the current-to-voltage converter from inside to outside a cooling device narrows the operating frequency band of the current-to-voltage converter. The current-to-voltage converter of the present disclosure uses elements exclusively optimized for low-temperature operation (e.g., HEMTs) as electronic elements for current-to-voltage conversion. This configuration realizes current-to-voltage conversion characteristics with significantly more excellent sensitivity than that of the conventional technique even when the current-to-voltage converter is operated at a low temperature of 150 K or less or in cryogenic temperature conditions close to absolute zero.

Abstract: FETs used in a conventional current-to-voltage converter lack current-to-voltage conversion efficiency and have a narrow operating frequency range when operated at cryogenic temperatures, and it is difficult to sensitively measure current. A desired low-temperature environment cannot be realized either due to power consumption in the current-to-voltage converter. A current-to-voltage converter is provided that sensitively measures small currents even in extremely low-temperature conditions. The current-to-voltage converter of the present disclosure uses elements specifically optimized for low-temperature operation (e.g., HEMTs) as electronic elements for current-to-voltage conversion. This configuration realizes significantly more excellent current-to-voltage conversion characteristics than those of the conventional technique even when the current-to-voltage converter is operated at a low temperature of 150K or less or in cryogenic temperature conditions close to absolute zero.

Abstract: This application discloses a measurement apparatus that does not use a femtosecond laser light source and a delay stage. The measurement apparatus mixes a first laser light from a first CW laser light source and a second laser light from a second CW laser light source to generate an interference light having a beat in a range from GHz to THz and demultiplexes the interference light into a pump light and a probe light. A generating photoconductive antenna is irradiated with the pump light, and a detecting photoconductive antenna is irradiated with the probe light. A current value of an electromagnetic wave propagating through a waveguide connecting the generating photoconductive antenna and the detecting photoconductive antenna is measured using a current system connected to the detecting photoconductive antenna.

Abstract: The present invention addresses the problem of providing a fluid handling system that is capable of injecting a fluid into a desired chip or the like without using a large-scale device. In order to resolve the problem, this fluid handling system has a reservoir, a flow path chip, and a cap, one end of which is fitted to the internal opening of the reservoir and the other end of which is connected to an introduction port of the flow path chip, the cap having a through-hole that links the one end and the other end. In this fluid handling system, a protruding part provided to the flow path chip is fitted into the through-hole at the other end of the cap and restricts blocking of the through-hole when a fluid moves inside the through-hole of the cap.

Abstract: A placement holder 1 for an analysis according to the present invention includes a frame portion 10 for placing an analysis plate, and a coupling portion 11; wherein the analysis plate includes, respectively at opposite ends in a longitudinal direction thereof, protrusions protruding in the longitudinal direction; the frame portion 10 includes a pair of wall portions that are opposed to each other, and a space surrounded by the frame portion 10 has an area 12 in which the analysis plate is to be placed; the pair of wall portions have a pair of cavities 13 into which the protrusions of the analysis plate are to be inserted, and at least one of the pair of cavities 13 is a through hole; the wall portion having the through hole has, on an inner surface thereof, an inclined surface 14 formed such that an interval between inner surfaces of the pair of wall portions gradually decreases from an upper end side toward the through hole of the wall portion; and the coupling portion 11 is disposed below the pair of cavit

Abstract: The present invention addresses the problem of providing a fluid handling device configured so that fluid can be efficiently received into a receiving section without loss. Provided is a fluid handling device having: a receiving section including a side surface and a bottom surface and receiving fluid; an introduction flow passage having an opening in the side surface of the receiving section and allowing fluid to flow toward the receiving section; a fluid guide section disposed within the receiving section so as to be connected to the opening of the introduction flow passage and causing fluid, which flows from the introduction flow passage, to flow toward the bottom surface of the receiving section; and a suction flow passage having an opening in the side surface of the receiving section and sucking in air present within the receiving section.

Abstract: In the present invention, a fluid handling device has: a first substrate made of resin whereon a channel is formed in a first surface; a first film made of resin and joined to the first surface of the first substrate; a second film made of resin a first surface of which is joined to a second surface of the first substrate; and a second substrate made of resin and joined to a second surface of the second film. A recessed part overlapping the channel in a plane view is formed on the surface of the second substrate joined to the second film. The glass transition temperature Tg1s of the first substrate, the glass transition temperature Tg1f of the first film, the glass transition temperature Tg2s of the second substrate, and the glass transition temperature Tg2f of the second film satisfy Tg1s, Tg2s>Tg1f, Tg2f.

Abstract: An ultrasonic flowmeter includes a main body that calculates components parallel to a pipe axis regarding the velocity of fluid on the basis of a first propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from a second ultrasonic transceiver and the time that ultrasonic waves transmitted from a first ultrasonic transceiver propagate through a first flow propagation path traversing inside the pipe in the radial direction for 2n?1 times (n is a positive integer), and a second propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from the second ultrasonic transceiver and the time that ultrasonic waves transmitted from the first ultrasonic transceiver propagate through the second flow propagation path traversing inside the pipe in the radial direction for 2m?1 times (m is a positive integer other than n).

Abstract: An ultrasonic flowmeter includes a main body that calculates components parallel to a pipe axis regarding the velocity of fluid on the basis of a first propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from a second ultrasonic transceiver and the time that ultrasonic waves transmitted from a first ultrasonic transceiver propagate through a first flow propagation path traversing inside the pipe in the radial direction for 2n?1 times (n is a positive integer), and a second propagation time difference, which is the difference in time between the time that ultrasonic waves transmitted from the second ultrasonic transceiver and the time that ultrasonic waves transmitted from the first ultrasonic transceiver propagate through the second flow propagation path traversing inside the pipe in the radial direction for 2m?1 times (m is a positive integer other than n).

Abstract: An ultrasonic flow meter includes: a first ultrasound transceiving portion provided on an outer periphery of an upstream side of piping; a second ultrasound transceiving portion provided on an outer periphery of a downstream side of the piping; a flow rate calculating portion that calculates a flow rate of a fluid based on time until a reception, by the second ultrasound transceiving portion, of an ultrasound transmitted by the first ultrasound transceiving portion and time until a reception, by the first ultrasound transceiving portion, of an ultrasound transmitted by the second ultrasound transceiving portion; an ultrasound absorbing body provided on an outer periphery of the piping; a piping-propagated wave identifying portion; an attenuation status value calculating portion; and a fault evaluating portion that evaluates that a fault has occurred in the ultrasound absorbing body.