Abstract: A battery measurement device that measures a state of a secondary battery includes: a signal control section that causes an alternating-current signal to be outputted from the secondary battery or inputs an alternating-current signal to the secondary battery; a current measurement section that measures the alternating-current signal; a response signal measurement section that measures a response signal of the secondary battery responsive to the alternating-current signal; and a calculation section that calculates information regarding a complex impedance of the secondary battery based on measurement results of the alternating-current signal measured by the current measurement section and the response signal measured by the response signal measurement section.

Abstract: In a battery measurement apparatus, a current controller sets a predetermined wavenumber of each of first and second alternating signals, and determines whether an input or an output of the predetermined wavenumber of one of the first and second alternating signals to or from a rechargeable battery has completed. The current controller switches, in response to determination that the input or output of the predetermined wavenumber of one of the first and second alternating signals to or from the rechargeable battery has completed, the completed one of the first and second alternating signals to a new alternating signal having another frequency while continuing the input or output of the other of the first and second alternating signals to or from the rechargeable battery.

Abstract: A battery measurement device for measuring a state of a rechargeable battery, includes a signal control unit provided on a first electrical path connecting a positive electrode and a negative electrode of the rechargeable battery and configured to cause the rechargeable battery to output a predefined AC signal or to input a predefined AC signal to the rechargeable battery, a voltage measurement unit provided on a second electrical path connecting the positive electrode and the negative electrode of the rechargeable battery and configured to receive, via the second electrical path, voltage variations of the rechargeable battery in response to the AC signal, a calculation unit configured to calculate information on a complex impedance based on the voltage variations, and a determination unit configured to determine an abnormality and a precursory sign of an abnormality in the second electrical path based on the information on the complex impedance.

Abstract: A battery measurement apparatus connected to a battery module in which a plurality of storage batteries are combined, includes: a measurement unit that measures a battery state of at least each of the storage batteries; and a determination unit that determines whether replacement of any one of the storage batteries has occurred based on the battery state. The determination unit determines that replacement of a storage battery has occurred in the case where a parameter indicating the battery state of any one of the storage batteries that constitute the battery module is determined to be out of a predetermined range and a parameter indicating the battery state of other storage batteries or other battery modules are also determined to be out of a predetermined range.

Abstract: In a battery monitoring device, a plurality of short-circuit switches are correspondingly provided for a plurality of battery cells of an assembled battery through detection lines. The battery cells includes a first battery cell and a second battery cell adjacent to each other. The short-circuit switches includes a first switch and a second switch, respectively, corresponding to the first battery cell and the second battery cell. An abnormality determination circuit executes an on and off control to turn the second switch from an off state to an on state, and then to the off state again while keeping the first switch in an off state. The abnormality determination circuit determines an abnormality of a detection line based on detection voltages of the first battery cell and detection voltages of the second battery cell before and after execution of the on and off control.

Abstract: A battery control unit is adapted for a power supply system provided with a storage battery series-connected battery cells, a filter circuit, a discharge circuit, and a connection member connecting between the battery cell and the filter circuit. The battery control unit includes a voltage detection unit detecting voltage at the battery cell where noise is eliminated by the filter circuit, the voltage being detected immediately before/after a discharging is performed through the discharge circuit; a correction value calculation unit that calculates an amount of a voltage drop at the connection member when a discharging is performed through the discharge circuit, to be a correction value; and a voltage calculation unit that calculates voltage of the battery cell by adding the correction value calculated by the correction value calculation unit to a post-discharge voltage detected immediately after the discharging by the voltage detection unit.

Abstract: A battery control unit is adapted for a power supply system provided with a storage battery series-connected battery cells, a filter circuit, a discharge circuit, and a connection member connecting between the battery cell and the filter circuit. The battery control unit includes a voltage detection unit detecting voltage at the battery cell where noise is eliminated by the filter circuit, the voltage being detected immediately before/after a discharging is performed through the discharge circuit; a correction value calculation unit that calculates an amount of a voltage drop at the connection member when a discharging is performed through the discharge circuit, to be a correction value; and a voltage calculation unit that calculates voltage of the battery cell by adding the correction value calculated by the correction value calculation unit to a post-discharge voltage detected immediately after the discharging by the voltage detection unit.

Abstract: An analyzer that, based on a voltage value of an ion selective electrode making contact with a liquid specimen, analyzes concentration of an electrolyte present in the liquid specimen. The analyzer includes a measuring unit that continuously measures the voltage value; a memory unit that stores therein a waveform indicating time variation in the voltage value measured by the measuring unit and reference information used in identifying malfunctioning in the analyzer; an output unit that outputs an analysis result of the liquid specimen; and a control unit that causes the output unit to output the waveform and the reference information stored in the memory unit.

Abstract: An electrolyte analyzing apparatus according to the present invention includes an A/D converter which converts analogue data output from an ion selective electrode into digital data. The electrolyte analyzing apparatus also includes a data processor which calculates a median of multiple pieces of the digital data converted from multiple pieces of the analogue data output from the ion selective electrode and outputs the median as measurement data of an electrolyte; and a calculator which calculates a concentration of the electrolyte contained in a specimen based on the measurement data of the electrolyte output from the data processor.

Abstract: A focusing method for an examination apparatus that can quickly and easily perform focusing for fluoroscopy is provided. The focusing method, for an examination apparatus that can observe fluorescence emitted from a specimen, includes a first step of irradiating the specimen with light via an objective lens to generate reflected light and fluorescence; a second step of performing focusing with respect to the surface of the specimen using the reflected light from the specimen; and a third step of performing focusing for the fluorescence based on the focal position of the specimen surface in the second step.

Abstract: A focusing method for an examination apparatus that can quickly and easily perform focusing for fluoroscopy is provided. The focusing method, for an examination apparatus that can observe fluorescence emitted from a specimen, includes a first step of irradiating the specimen with light via an objective lens to generate reflected light and fluorescence; a second step of performing focusing with respect to the surface of the specimen using the reflected light from the specimen; and a third step of performing focusing for the fluorescence based on the focal position of the specimen surface in the second step.

Abstract: A focusing method for an examination apparatus that can quickly and easily perform focusing for fluoroscopy is provided. The focusing method, for an examination apparatus that can observe fluorescence emitted from a specimen, includes a first step of irradiating the specimen with light via an objective lens to generate reflected light and fluorescence; a second step of performing focusing with respect to the surface of the specimen using the reflected light from the specimen; and a third step of performing focusing for the fluorescence based on the focal position of the specimen surface in the second step.

Abstract: A focusing method for an examination apparatus that can quickly and easily perform focusing for fluoroscopy is provided. The focusing method, for an examination apparatus that can observe fluorescence emitted from a specimen, includes a first step of irradiating the specimen with light via an objective lens to generate reflected light and fluorescence; a second step of performing focusing with respect to the surface of the specimen using the reflected light from the specimen; and a third step of performing focusing for the fluorescence based on the focal position of the specimen surface in the second step.