Abstract: The present invention relates to a system comprising a light source configured to produce an emitted light beam. An etalon is positioned to receive the light beam and is configured to generate a plurality of product light beams. The etalon is mounted to a support structure at one or more pivot points. A detector is positioned to receive and configured to measure intensity values for the product light beams. A computing device is coupled to the detector. The computing device includes a processor and a memory coupled to the processor so that the processor executes programmed instructions stored in the memory to determine, based on the measured intensity values, a change in position of the etalon relative to the one or more pivot points. Also disclosed are methods for measuring the vibration and monitoring the condition of an object utilizing the system.

Abstract: According to one embodiment, a physical quantity measuring apparatus includes a signal measurer configured to include sensors configured to measure component values of two axes from among component values of three axes including an X(Hx), a Y(Hy) and a Z(Hz) measured component value of a physical quantity to be measured, a sensor controller configured to select one from among the sensors to be controlled to output a measured value from the selected sensor, an A/D transformer configured to transform an outputted signal selected by the sensor control unit into a digital signal, and a signal processor configured to receive the digital signal from the A/D transformer and to combine the received digital signal with other received digital signals to calculate X, Y and Z component values of the physical quantity.

Abstract: A micromechanical acceleration sensor, having at least two identically fashioned micromechanical sensor cores, wherein the two sensor cores on the acceleration sensor are configured so as to be rotated by 180° relative to one another, or one of the two sensor cores is configured in mirrored fashion in relation to an axis running centrically through the other of the two sensor cores and oriented orthogonally to a transverse force capable of acting on the acceleration sensor.

Abstract: A test and measurement system including an electro-optical accessory with an electro-optical sensor configured to output a modulated output signal, a device under test connected to the electro-optical accessory with a variable input signal, and a processor. The electro-optical accessory includes two sets of electrodes in which a sensitivity of the first set of electrodes is different from a sensitivity of the second set of electrodes. The processor in the test and measurement system is configured to modify the modulated output signal from the electro-optical voltage accessory to reconstruct the variable input signal of the electro-optical voltage accessory that exceeds the linear input range of the optical sensor.

Abstract: A DC-DC converter includes a directly coupled inductor with coil elements and power-switching phases. Each phase includes a high-side and low-side switch, where the high-side switch couples a voltage source to a coil element and the low-side switch couples the coil element to a ground voltage. Each switch is configured to be alternately activated and no two switches are activated at the same time. A current sensor for the DC-DC converter includes a single current amplifier having inputs and an output. The output provides a current sensing signal. The current sensor also includes a single RC network coupled to one of the power-switching phases and a first input of the current amplifier. The current sensor also includes a resistive ladder. The ladder includes, for each of the other power-switching phases, a resistor coupled in parallel to the RC network resistor and to a second input of the current amplifier.

Abstract: The invention relates to a circuit arrangement having a switching device (1) which is designed to provide a first voltage (UE) and a first electrical current (IE) in a power path and to provide a second voltage (US) and a second electrical current (IS) in a measuring path for the duration of a switching period, wherein the first electrical current corresponds to the second electrical current; having a current measuring apparatus (2) which is arranged in the measuring path and is designed to provide an output signal (UM) which corresponds to the first electrical current; and having a control circuit (3, 4) which is designed to activate the current measuring apparatus for the duration of a measuring period and to deactivate the current measuring apparatus again after the measuring period expires.

Abstract: A microcomputer section operates by use of electric power from a power supply section. The microcomputer section carries out control so that any one of a plurality of switching circuits is selected, the selected one of the plurality of switching circuits causes an electric current from a corresponding current transformer of a plurality of current transformers to flow to the microcomputer section, whereas the other unselected switching circuits cause electric currents from respective current transformers of the plurality of current transformers to flow to the power supply section, and the selection is carried out successively with respect to each of the plurality of switching circuits.

Abstract: A method for determining a value of a parameter of an object or an environment includes positioning a device having a balanced circuit in or on an object or within a particular environment, wherein the balanced circuit comprises elements which are operationally sensitive to changes in a parameter of the object or the environment. The method further includes measuring a common mode signal of the balanced circuit and determining, from the common mode signal, a value of the parameter. An exemplary implementation of the method includes determining temperature using a resistive sensor having a Wheatstone bridge circuit with two variable resistors and two fixed resistors. Embodiments of systems and devices configured to employ such methods are provided, particularly medical probes, electronic signal monitoring devices, and systems employing such devices.

Abstract: A computing device in tiding a data port for receiving power. A detector can determine if a cable attached to the data port is capable of providing power greater than a threshold level to the computing device. A controller can generate an error signal to alert a user that the cable does not provide power over the threshold level to the computing device.

Abstract: Described is an apparatus which comprises: one or more sensors for coupling to a power source and for sensing electrical parameters of the power source, wherein the power source is operable to provide power to a system having one or more sub-systems; and a processor to analyze the sensed electrical parameters and to detect and identify one or more events associated with the system and the one or more sub-systems.

Abstract: A monitoring device (10) includes a feature amount storage unit (11) that stores a device feature amount which is a feature amount of each of a plurality of electrical devices installed in a predetermined unit in operation; a measured data acquisition unit (12) that acquires measured data of the predetermined unit which is at least one of a total current consumption, a total power consumption, and a voltage measured in the predetermined unit; a feature amount extraction unit (13) that acquires a measurement feature amount which is the feature amount included in the measured data of the predetermined unit; a correction unit (15) that corrects a first feature amount which is the device feature amount or the measurement feature amount based on unit feature information indicating a feature of the predetermined unit; and a presumption unit (16) that presumes the electrical device being in operation using the corrected first feature amount, and a second feature amount which is the device feature amount or the measu

Abstract: Devices, systems and methods for coupling sensors to intelligent electronic devices (IED's), e.g., an electrical power meter, via various communication media are provided. The present disclosure provides a mechanism for coupling an IED to another desired device, e.g., a current sensor, using modular connectors (e.g., a RJ-45 connector) and fiber-optic cables. The present disclosure also provides for coupling devices using modular connectors via wired or wireless connectivity.

Abstract: To provide a power system analysis support system in which the amount of data to be sent from a measuring device to an analysis support apparatus can be reduced. A measuring device includes a measuring unit which performs measurement related to a power system, a storage unit which stores measurement values measured by the measuring unit, a parameter generator which generates a predetermined parameter indicating a probability density function of the measurement value from the plurality of measurement values stored in the storage unit, and a communication unit which sends the predetermined parameter generated by the parameter generator to an analysis support apparatus. The analysis support apparatus includes a communication unit which receives the predetermined parameter from the measuring device, and a probability density function generator which generates a probability density function of the measurement value from the received predetermined parameter.

Abstract: The method determines an input phase differential (??) between two input signals. A phase detector is provided that has pairs of transistors and a first impedance (R1) connected to a first branch carrying a first signal (Iout_left) and a second impedance (R2) connected to a second branch carrying a second signal (Iout_right). The first signal (Iout_left) in the first branch is set as a first sum of a common mode output signal (Icm) and a differential mode output signal (Idm). The second signal (Iout_right) in the second branch is set as a second sum of the common mode output signal (Icm) minus the differential mode output signal (Idm). A relationship between the first impedance (R1) and the second impedance (R2) is adjusted until a differential mode output voltage (Vdm) of the phase detector is zero. The input phase differential (??) is determined when the differential mode output voltage (Vdm) is zero.

Abstract: A detecting method for detecting an output impedance angle of an inverter includes controlling an inverter to output a second voltage signal and a current signal based on a first voltage signal; calculating an active power and reactive power based on the second voltage signal and the current signal; and calculating an output impedance angle of the inverter based on the product of the active power and a first amplitude parameter, the product of the active power and a second amplitude parameter, the product of the reactive power and the first amplitude parameter, and the product of the reactive power and the second amplitude parameter. The first amplitude parameter corresponds to a first amplitude of the first voltage signal, and the second amplitude parameter corresponds to the first amplitude of the first voltage signal and a second amplitude of an AC voltage.

Abstract: A method for detecting an output impedance angle of an inverter includes controlling an inverter to output a second voltage signal and a current signal based on a first voltage signal; receiving the signals, and calculating and outputting first and second active powers, and first and second reactive powers using the signals; calculating and outputting third and fourth active powers, and third and fourth reactive powers based on the first and second active powers, the first and second reactive powers, and the predetermined impedance angle; determining whether the amplitude is a constant value; if so, determining whether an absolute value of the first differential value of the third and fourth reactive powers is less than a first power reference value; if so, the impedance angle outputted from the inverter is the impedance angle; if not, setting the impedance angle as the predetermined impedance angle plus or minus the compensation angle.

Abstract: An electrostatic sensor includes: a decoration portion formed of a metal-based material, which is provided in an attachment target member; and a plurality of electrodes that are arranged in a back portion of the decoration portion and that individually detect a detection target which comes into contact with or approaches the decoration portion, wherein the decoration portion is configured of a plurality of decoration pieces divided according to arrangement of the plurality of electrodes.

Abstract: The present invention relates to a simple and reliable device for recognizing disruptions in an on-board power supply. The device comprises a reception unit adapted to receive a first and a second temporal sequence of measurement values, the measurement values of the first sequence being measured at a first measuring point of the on-board power supply and the measurement values of the second sequence being measured at a second measuring point of the on-board power supply differing from the first measuring point, and the measurement values representing current or voltage values, and an evaluation unit adapted to recognize the occurrence of a disruption based on a comparison of the first dispersion of the measurement values of the first sequence and a second dispersion of the measurement values of the second sequence.

Abstract: The disclosure relates to a method for monitoring the performances of a cable for carrying a downhole assembly in a wellbore, the cable having at least a conductive core and an insulating outer layer, the method including: performing on the cable a detection operation for detecting the presence of local anomalies of the cable; generating an electrical model of a predetermined configuration of an installation including the cable and the downhole assembly disposed in the wellbore, the model being defined in function of the detected local anomalies, estimating a parameter relative to a signal transmitted by the cable between the downhole assembly and a surface equipment in the predetermined configuration on the basis of the electrical model.

Abstract: There is provided a partial discharge sensor including a first flange formed at an end of a first conductor tube, a second flange formed at an end of a second conductor tube, a first insulating spacer sandwiched between the first flange and the second flange, a plurality of holes passing through the first flange, the first insulating spacer, and the second flange, at least two first conductors each passing through one of the plurality of holes to be disposed with electrically connected to the first flange and the second flange, a second conductor passing through one of the plurality of holes to be disposed with electrically connected to the second flange, and a second insulating spacer that insulates the second conductor and the first flange from each other.

Abstract: An embodiment method for short-circuit detection includes determining a set of local reference voltages each associated with a respective load chain in a plurality of load chains, and determining a global reference voltage in accordance with the set of local reference voltages. The method also includes determining, for each load chain in the plurality of load chains, a respective per-chain reference voltage in accordance with the global reference voltage, and comparing, for each load chain in the plurality of load chains, the respective per-chain reference voltage relative to a respective measured voltage across each load chain to determine a respective short-circuit condition.

Abstract: An automated earth fault testing system and early warning system designed to be used with mobile towers for real-time monitoring of the earthing values. The automated earth fault testing system comprises an earth fault testing device powered by a low voltage direct current battery, a plurality of terminals, at least one calibration switch including a calibration pad for calibrating the earth fault testing device, a plurality of visual indication means for providing indication of a variety of conditions including high and/or normal value of the earth resistance value and for indicating a charge level of the earth fault testing device and a liquid crystal display for displaying the earthing values. The earth fault testing device is connected to an alarm system of a base transceiver station utilizing a relay for informing the mobile signal station and operator with information regarding a status of the earth fault testing device.

Abstract: A power supply control part supplies offset voltages from power supplies to each of signal wires at start time and then, after a predetermined delay time period, supplies a reference voltage from a power supply. A series resistor circuit of resistor elements is provided in each signal wire and a resistor element is connected between a supply node of the offset voltage and an input terminal of the series resistor circuit. A resistor element is connected between the supply node of reference voltage and the output terminal of the series resistor circuit provided in the signal wire of a high-potential side. A comparison logic part detects a disconnection of the signal wire based on a voltage developed at the input terminal of itself during the delay time.

Abstract: An electronic component having a plurality of terminals arranged on a bottom side of a package and mounted on a printed wiring board includes at least one detection terminal as a portion of the plurality of terminals, the detection terminal being connected to a ground outside the electronic component, wherein the detection terminal is connected to an input port of an input buffer and one end of a resistor inside the electronic component, the other end of the resistor is connected to a power supply, and the input buffer detects a poor connection of a solder joint or a socket by outputting a first binary signal obtained by binarizing a voltage level input into the input buffer using a predetermined threshold.

Abstract: Provided are an interface insertion anomaly detection circuit and method applicable to the field of mobile terminals. The interface insertion anomaly detection circuit comprises a power circuit (4), and further comprises: a first USB interface (1), comprising a first power line and a first signal line, a power end of the first power line being connected to the power circuit (4); a second USB interface (2), comprising a second power line and a second signal line, the second power line and the second signal line being short-circuit connected, wherein the second USB interface (2) connects the second signal and the first signal line through insertion to the first USB interface (1); and a controller (3), a first voltage collection end and a second voltage collection end thereof being respectively connected to the power end of the first power line and a signal end of the first signal line.

Abstract: A device for monitoring partial discharges in an AC electrical network, the monitoring device being mounted in a switching apparatus provided with a vacuum bottle connected to one phase of the AC network. The monitoring device includes a partial discharge detector positioned facing the vacuum bottle and an electronic processing unit receiving a first signal representative of the partial discharges detected by the capacitive sensor and receiving a second signal representative of the voltage of the electrical network. The processing unit includes discriminating means which are capable, according to the first signal and the second signal, of determining whether the partial discharges originate from a loss of vacuum in the vacuum bottle or originate from another cause external to the vacuum bottle.

Abstract: A method and apparatus for detecting the wiring configuration of an electric power system based upon a particular voltage ratio that is determined for the electric power system. Also a method and apparatus for diagnosing voltage swap conditions in an electric power system. Finally, a method and apparatus for identifying virtual meters in an electric power system.

Abstract: A system and method for a branch current monitoring system employing a 2-Phase Wye, a Single-Phase 3-Wire or a Single-Phase 2-Wire wiring configuration that is configured to identify a phase association and a polarity for a branch circuit current sensor using the phase angle between voltage and current. Also, a system and method for verifying phase association and polarity determinations for branch circuit current sensors that utilizes real and reactive power measurements.

Abstract: A method of operating a data processing system to generate a diagram indicative of an experimental setup includes a device to be tested (DUT) and a plurality of test instruments is disclosed. The method includes detecting a first test instrument that is connected to the data processing system and determining connection points to the first test instrument. A script that specifies tests for the DUT using the plurality of test instruments and includes instructions specifying measurements to be made by the first test instrument is examined. A first connection between the DUT and the first test instrument is determined. An initial diagram on a display controlled by the data processing system is generated. The initial diagram includes a first node representing the first test instrument, a second node representing the DUT and a line representing the first connection between the first and second nodes.

Abstract: An integrated circuit testing system includes a conductive structure, a conductive pad electrically connected with the conductive structure, a test circuit electrically connected with the conductive pad, a conductive line electrically connected with the conductive structure, the conductive line being configured to be connected with a ground, and a controller coupled with the test circuit. The controller is configured to selectively cause the test circuit to supply a voltage to the conductive structure via the conductive pad. The test circuit is configured to provide feedback to the controller indicative of whether the conductive structure is electrically connected with the conductive pad.

Abstract: Electronic devices (320) are provided which comprise a digital logic circuit (101) and a test module (322) adapted to receive test parameters from a remote test management device (310), generate test patterns based on the test parameters, apply the test patterns to the digital logic circuit, receive test responses from the digital logic circuit, compact the test responses into a test signature, and either transmit the test signature to the remote test management device or determine a test result based on a comparison of an expected signature received from the remote test management device with the test signature.

Abstract: Disclosed is a multilayer interposer with high bonding strength, which is used in wafer testing. The multilayer interposer with high bonding strength comprises a plurality of thin-film layer structures overlapping sequentially. One of the thin-film layer structures comprises at least one first conductive blind via. An interconnection layer electrically connected to the first conductive blind via is configured on the surface of the one of the thin-film layer structures, and the interconnection layer comprises at least one head portion. Another one of the thin-film layer structures comprises at least one second conductive blind via. The bottom of the second conductive blind via contacts both of the corresponding head portion and part of the surface of the one of the thin-film layer structures. Thereby, the bonding strength between layers can be dramatically increased, and the resistance to the thermal shock can be also increased.

Abstract: A method is presented for characterizing a digital circuit for determining an optimum operating point of the digital circuit. The digital circuit includes sequential elements; conducting data paths; a clock tree; a time fault sensor receiving as input a data signal and configured to detect during a detection window a transition of the data signal; and a system for setting first and second operating parameters of the circuit. The method includes a) activating a conducting data path leading to the sequential element coupled to the sensor; b) determining, for a given value of the first parameter, a first value of the second parameter from which the sensor detects a transition of the data signal during the detection window, the values of the first and second parameters defining an operating point of the circuit; and c) correcting the operating point.

Abstract: A method for minimizing a test set for optimal coverage is disclosed. The method includes generating a first test set which is both an empty and minimal test set. Then, generating a second test set with a predetermined number of tests. Further, partitioning the second test set into a control test set and an experiment test set. Subsequently, providing a list of tests for coverage by merging the control test set with the first test set to form a merged list of sets.

Abstract: An apparatus for testing an electronic circuit includes a clock scan chain input, a clock scan chain output, and a number of clock controllers connected in series in a clock scan chain between the clock scan chain input and the clock scan chain output. Each of the clock controllers includes an input, a bypass flip flop connected to the input, a number of clock control bit flip flops connected in series to an output of the bypass flip flop, a bypass multiplexer having a first input connected to an output of a last of the clock control bit flip flops and a second input connected to the output of the bypass flip flop, and a holding flip flop having an input connected to the output of the bypass flip flop and an output connected to a select input of the bypass multiplexer.

Abstract: Embodiments of the present disclosure provide apparatus for using a compliance model to determine compatibility of a channel with a bus's chip I/O circuitry at its ends. The apparatus includes at least one processor and a memory coupled to the at least one processor. The processor is configured to: identify at least one design criteria; obtain boundary sets of frequency domain parameters for compliant signal channels known to achieve the design criteria; and verify whether a particular signal channel is compliant by comparing values of frequency domain parameters for the particular channel to one or more of the boundary sets of frequency domain parameters for the known compliant channels.

Abstract: A wrapper for automatic test pattern generation uses the functional bus when testing cores on an integrated circuit device. The functional bus is between the bus wrapper and the cores. During normal operation, the functional bus operates as a standard bus to communicate functional inputs and outputs between the cores and in/out of the integrated circuit device. During test operation, test signals are communicated on the functional bus. As a result, each core does not require its own wrapper; this allows the bus wrapper to reduce the area occupied by test circuitry.

Abstract: A test device includes: a test control unit suitable for detecting a deterioration-expected unit circuit among a plurality of unit: circuits included in a test-subject device according to operation histories of the plural unit circuits, and detecting a deterioration degree according to a test output value of the deterioration-expected unit circuit; and an interface unit suitable for routing control operation results and test results between the test control unit and the test-subject device during a test operation.

Abstract: A semiconductor apparatus includes a storage circuit, a processing circuit that performs processing using data stored in the storage circuit and writes data into the storage circuit as the processing is performed, a scan test circuit that executes a scan test on the processing circuit when the processing circuit does not perform processing, and an inhibit circuit that inhibits writing of data from the processing circuit to the storage circuit when the scan test on the processing circuit is executed.

Abstract: Testing of integrated circuits is achieved by a test architecture utilizing a scan frame input shift register, a scan frame output shift register, a test controller, and a test interface comprising a scan input, a scan clock, a test enable, and a scan output. Scan frames input to the scan frame input shift register contain a test stimulus data section and a test command section. Scan frames output from the scan frame output shift register contain a test response data section and, optionally, a section for outputting other data. The command section of the input scan frame controls the test architecture to execute a desired test operation.

Abstract: The disclosure describes a novel method and apparatus for making device TAPs addressable to allow device TAPs to be accessed in a parallel arrangement without the need for having a unique TMS signal for each device TAP in the arrangement. According to the disclosure, device TAPs are addressed by inputting an address on the TDI input of devices on the falling edge of TCK. An address circuit within the device is associated with the device's TAP and responds to the address input to either enable or disable access of the device's TAP.

Abstract: Embodiments of the present disclosure provide methods for using a compliance model to determine compatibility of a channel with a bus's chip I/O circuitry at its ends. The method includes identifying at least one design criteria and obtaining boundary sets of frequency domain parameters for compliant signal channels known to achieve the design criteria. In certain embodiments, the boundary sets may be derived using a genetic algorithm. The method further includes verifying whether a particular signal channel is compliant by comparing values of frequency domain parameters for the particular channel to one or more of the boundary sets of frequency domain parameters for the known compliant channels.

Abstract: A system, such as a system-on-chip, has a non-debug domain and a debug domain. The debug domain has a debug framework that enables a debugger driven, non-debug domain system reset. The system includes a reset control unit, and a debug trigger mechanism that includes a debug trigger interface (DTI) connected to the reset control unit. The DTI is configured to trigger the reset control unit to reset the non-debug domain. The DTI may further be configured to monitor a status of the non-debug domain system reset.

Abstract: A method is provided for implementing a security mechanism in an integrated MEMS (Micro-Electro-Mechanical-System) device having a MEMS sensor with an output register associated with a sensing operation, the integrated MEMS device being electrically coupled to a computing system programmed to perform the method. The method includes, in normal operation, reading from the output register an output of the sensing operation, and in a test mode, determining, by a processor disposed within the computing system, a random value. Determining the random value can include reading from the output register, which in the test mode or provides a value from an internal pattern generator. The method also includes determining, by the processor, a validation value, reading, by the processor, the random value stored in the output register; and determining, by the processor, whether the integrated device is valid using the validation value and the random value stored in the output register.

Abstract: A switch monitoring circuit has an external input terminal connected to a switch, a voltage applying unit that applies a driving voltage to the external input terminal, a voltage detecting unit that detects a change in the voltage at the external input terminal, a control unit connected to the voltage applying unit and voltage detecting unit, and a charge storage unit connected to the external input terminal and voltage applying unit. The charge storage unit has a voltage applying terminal to which the driving voltage is applied, a first resistive element, one of the terminals of which is connected to the external input terminal and the other of the terminals of which is connected to the voltage applying terminal, and a capacitive element, one of the terminals of which is connected to the voltage applying terminal and the other of the terminals of which is grounded. The capacitive element performs charging from the voltage applying terminal and discharging to the voltage applying terminal.

Abstract: The rechargeable battery parameter estimation apparatus includes: a current measurement part for measuring a current flowing through a rechargeable battery, the current measurements having an offset error; a first coefficient calculation part for calculating a first coefficient, which is a partial derivative of an estimated value of an state of charge (SoC) of the battery with respect to the offset error; a second coefficient calculation part for calculating a second coefficient, which is a partial derivative of the estimated value of the SoC with respect to a capacity error, which is a difference of a typical full charge capacity from an actual full charge capacity of the battery; and an error estimation part for estimating the offset error and the capacity error from derivative information including the first coefficient and the second coefficient, the current flowing through the battery, and the estimated value of the SoC.

Abstract: Techniques described herein may be used to provide a driver of a vehicle with an accurate assessment of the remaining life of the vehicle battery. An on-board device may collect information from one or more sensors or devices within the vehicle. The information may be processed to generate a data set that accurately describes the current status and operating conditions of the battery. The data set may be used to evaluate the health of the battery and make predictions regarding the future performance of the battery, which may be communicated to the driver of the vehicle. Machine-learning techniques may be implemented to improve upon methodologies to evaluate the health of the battery and make predictions regarding battery performance.

Abstract: Provided herein is a charger having a battery diagnosis function. The charger is connected between an input power supply supplying an input voltage and a battery and charges the battery with the input voltage. The charger includes a full-bridge-circuit connected to the input power supply and comprising a first switch, a second switch, a third switch, and a fourth switch, a transformer including a primary winding and a secondary winding, wherein the primary winding is connected to the full-bridge-circuit to transform the input voltage received from the full-bridge-circuit and transmits the voltage to the secondary winding, and a rectifying circuit comprising a fifth switch and a sixth switch, connected between the secondary winding and the battery, and rectifying the voltage received from the transformer to charge the battery, or transmitting power in two directions for diagnosing a state-of-health of the battery.

Abstract: The autonomous electronic module (1) includes: —a cell (2) providing a supply current (Icell) to the electronic module, —a resistor (2) connected in series with the cell, the resistor exhibiting terminals, —elements for measuring a voltage (20) across the terminals of the resistor and elements for evaluating the charge remaining (10, 11, 12), arranged so as to process a measurement of the voltage in order to calculate the charge remaining of the cell (2).

Abstract: An ICP analyzer 100 includes a self-oscillation radio-frequency power supply unit 120 for supplying radio-frequency power for generating plasma to an induction coil 111 wound around a plasma torch 110. To check the type of plasma torch 110, the analyzer 100 further includes: a frequency measurement section 121 for measuring an output frequency of the power supply unit 120; a storage unit 190 holding a reference output frequency for each type of plasma torch; and a torch checker 132 for determining whether or not the output frequency measured by the frequency measurement section 121 after the plasma is lit agrees with any one of the reference output frequencies, and for giving notification of the determination result.