Abstract: A current sensor includes a magnetic core that can be arranged to surround a conducting wire through which a current to be measured flows, magnetic sensors each configured to detect magnetic flux in a predetermined portion of the magnetic core, amplifiers arranged in correspondence with the magnetic sensors, feedback coils arranged in correspondence with the magnetic sensors, and a current detector that detects the current to be measured based on a current yielded by combining currents flowing through each of the feedback coils. Each of the amplifiers amplifies an output of the corresponding magnetic sensor and outputs a current corresponding to the output of the corresponding magnetic sensor. Each feedback coil is wound around the magnetic core and passes the current outputted by the corresponding amplifier in a direction that cancels the corresponding magnetic flux in the predetermined portion of the magnetic core.

Abstract: A measurement device to measure a physical quantity of a measurement target having a sheet-like shape is provided, including: a first integrating sphere which is separated by a gap from a first surface of the measurement target, has a first opening facing the first surface, and is not provided with a light detector to detect an intensity of light; a second integrating sphere which is separated by a gap from a second surface of the measurement target, where the second surface is positioned opposite to the first surface, and has a second opening facing the first opening with the measurement target sandwiched therebetween; a light source to emit light into the first integrating sphere; a light detecting unit to detect an intensity of light inside the second integrating sphere; and a calculating unit to calculate the physical quantity of the measurement target based on the intensity of the detected light.

Abstract: An alarm management apparatus of the present disclosure presents a trigger alarm, which should be presented to an operator, to the operator when the trigger alarm is included in an alarm that is received or generated. The alarm management apparatus stores a suppressed alarm related to the trigger alarm, without presenting the suppressed alarm to the operator, when the suppressed alarm is included in the alarm and presents the stored suppressed alarm to the operator based on an operation by the operator.

Abstract: A field device case is a metal field device case where a lead-in part for drawing a cable including an outer shield is provided on a tubular circumferential wall. The field device case includes: a first inner surface which is formed away from an opening end surface of the field device case in an axial direction orthogonal to the opening end surface; a second inner surface which is formed farther away from the opening end surface than the first inner surface in the axial direction; and a cable fixing member which is fixed to the first inner surface and allows the outer shield of the cable drawn by the lead-in part to be in contact with the second inner surface.

Abstract: A signal detecting device includes a multiplier that multiplies a measurement signal by a reference signal, a filter that filters a multiplication result from the multiplier, a first storage that stores an internal state of the filter; and a second storage that stores a filtering result from the filter. The filter filters the multiplication result using the internal state stored in the first storage. The first storage switches an area in or from which the filter writes or reads the internal state in accordance with an index signal representing a type of amplitude of a time-divisional signal in the measurement signal. The second storage switches an area in which the filtering result is stored in accordance with the index signal.

Abstract: A calibration device generates a data set of a reference sample including spectral data of the reference sample containing a plurality of components and each objective variable determined by a content of each of the components of the reference sample, and trains, by machine learning using the data set of the reference sample, a machine learning model that outputs at least one objective variable among the objective variables of each of the components in response to input of the spectral data.

Abstract: An optical measurement apparatus having an improved light intensity detection performance is provided. The optical measurement apparatus includes a light receiving element capable of converting a light intensity of light to be analyzed into an electrical signal; an input terminal to which the electrical signal is input; a first amplifier and a nonlinear element configuring a logarithmic amplifier; offset resistors; a switch unit; and a controller. An inverting input terminal of the first amplifier is electrically connected to the input terminal. The offset resistors have different resistance values. The switch unit can switch an offset resistor electrically connected between the voltage source and the input terminal, of the offset resistors. An offset current is input to the input terminal by the offset resistor electrically connected between the voltage source and the input terminal. The controller measures the light intensity based on an output voltage value of the first amplifier.

Abstract: A sample analysis support apparatus includes a sample region in which a sample is to be disposed, a tip region in which a tip is to be disposed, a first operation unit capable of an operation on the sample using the tip, the tip being attachable to and detachable from the first operation unit, a second operation unit capable of an operation on the sample using the tip, the tip being attachable to and detachable from the second operation unit, a transport unit configured to support each of the first operation unit and the second operation unit moveably between the tip region and the sample region, and a movement controller capable of controlling the transport unit to move each of the first operation unit and the second operation unit between the tip region and the sample region.

Abstract: A method for producing a complex, a method for determining microbial inclusion, and a method for identifying the included microorganism, which can be easily performed is provided. A method for producing a complex containing a target that is contained in a sample, includes a step (a) of bringing a sample into contact with a label molecule A, a label molecule B, and a label molecule C and forming a complex, and a step (b) of isolating the complex. The target is a nucleic acid. The label molecule A contains a nucleic acid sequence capable of hybridizing to a part of the target and substantially complementary to the nucleic acid sequence of the target. The label molecule B contains a nucleic acid sequence capable of hybridizing to a part of the target and substantially complementary to the nucleic acid sequence of the target.

Abstract: An information processing method includes receiving, by the controller via a communication interface, screen information regarding measurement information on a physical quantity from one or more waveform analyzers that acquire the measurement information, transmitting, by the controller via the communication interface, the acquired screen information to a plurality of operation terminals, receiving, from a first operation terminal of the plurality of operation terminals, a request for operation on the one or more waveform analyzers through the screen information, determining, by the controller, whether a control right to operate the one or more waveform analyzers is granted to any operation terminal of the plurality of operation terminals except the first operation terminal, and granting, by the controller, the control right to the first operation terminal in response to determining that the control right is not granted to any operation terminal of the plurality of operation terminals except the first operati

Abstract: A water treatment method includes a microbubble generating step (S101) of generating microbubbles in water to be treated containing at least calcium ions and producing water to be treated containing microbubbles, a water softening step (S102) of crystallizing calcium ions contained in the water to be treated containing the microbubbles as calcium carbonate and removing the calcium carbonate, and a reverse osmosis membrane treatment step (S103) of separating the water to be treated, from which the calcium carbonate has been removed, into reverse osmosis membrane treated water and reverse osmosis membrane concentrated water using a reverse osmosis membrane.

Abstract: An information processing system includes a number of field devices provided in a plant and a mobile device that acquires data from the field devices. The mobile device includes a data management unit that manages the field devices that are grouped for each plant area and a processing unit that acquires data using wireless communication from, out of the field devices managed by the data management unit, the field devices provided in the plant area selected by user operation.

Abstract: A field device includes: a current controller configured to operate with a first power supply voltage and output a control signal for controlling a current to be output to a transmission line; a current output unit configured to operate with a second power supply voltage different from the first power supply voltage, the current output unit being capable of outputting a current of a magnitude corresponding to the control signal output from the current controller to the transmission line; and an abnormality notification unit configured to output, to the current output unit, a first signal for causing the current output unit to output a burnout current indicating that an abnormality has occurred in a case in which an abnormality occurs in the first power supply voltage.

Abstract: A secondary battery management device is communicably connected to a secondary battery unit including a secondary battery, and manages the secondary battery unit. The secondary battery management device is configured to: request the secondary battery unit to transmit a voltage and a state value of the secondary battery; receive the voltage and the state value of the secondary battery transmitted from the secondary battery unit; calculate a value of correction of the state value on the basis of the voltage and the state value which have been received; and transmit the calculated value of correction to the secondary battery unit in order to apply the calculated value of correction.

Abstract: A diaphragm seal includes a first diaphragm that faces a measurement medium, a sealed-liquid housing, and a second diaphragm. The first diaphragm receives pressure from the measurement medium. The sealed-liquid housing houses a sealed liquid for transferring the pressure to a transmitter. The second diaphragm causes hydrogen intruded into the sealed liquid to permeate through the second diaphragm and be discharged from the sealed liquid.

Abstract: A magnetic flaw detection method includes a magnetization step (S2) of moving a magnet (21) in a predetermined direction (D) along a surface of an object (7) that is a magnetic body and subsequently removing the magnet (21) from the surface of the object (7) to magnetize a region (R) corresponding to a movement range of the magnet (21) on the object (7), a sensor arrangement step (S3) of arranging a magnetic sensor (35a) to be capable of measuring magnetic flux leakage (8) generated from an abnormal portion (72) of the region (R) that was magnetized in the object (7), and a detection step (S4) of detecting an abnormality in the region (R) with the magnetic sensor (35a) arranged by the sensor arrangement step (S3).

Abstract: A temperature difference power generation apparatus according to one aspect of the present invention includes a thermoelectric conversion element configured to convert thermal energy into electric energy based on a temperature difference, radiation fins which are thermally connected to a low-temperature side of the thermoelectric conversion element and contactable to outside air, and a pipe which is thermally connected to a high-temperature side of the thermoelectric conversion element and through which a high-temperature fluid at a higher temperature than the outside air is flowable.

Abstract: A resonant pressure sensor includes a first substrate and a resonator. The first substrate includes a diaphragm and a projection disposed on the diaphragm. The resonator is disposed in the first substrate, a part of the resonator being included in the projection, and the resonator being disposed between a top of the projection and an intermediate level of the first substrate. The first substrate is an SOI substrate in which a silicon dioxide layer is inserted between a silicon substrate and a superficial silicon layer. The intermediate level of the first substrate is disposed in the silicon substrate, and the resonator is disposed in the projection included in the superficial silicon layer.

Abstract: A detection device includes a processor that detects a state change of a target object based on sensor value array data in which sensor values acquired from sensors are associated with array positions of the sensors, generates, with respect to two pieces of the sensor value array data for which the sensor values are acquired at different times, differential value array data, generates, from the differential value array data, two pieces of partial differential value array data, and determines presence or absence of a smooth change of the differential values in the differential value array data based on a result of threshold determination on similarity between the differential values in the two pieces of partial differential value array data and a result of threshold determination on a variance value of the differential value array data.

Abstract: A reaction analysis system includes a first flow path through which a reaction fluid, obtained by mixing reactants in a mixer, flows, a second flow path through which the reaction fluid flows and that has higher heat exchange efficiency than the first flow path, a temperature measurer that measures a temperature distribution of the reaction fluid along the first flow path, and a reaction analysis device that specifies a reaction state of the reaction fluid based on a reaction parameter. The reaction parameter is obtained from the measured temperature distribution and indicates the reaction state of the reaction fluid.