Abstract: The invention relates to a two-wire transducer in automation engineering that outputs a measurement signal as an injected current. For the method to test the serviceability, it is proposed to increase the DC loop current (IS), independently of the measured value, from the minimum value towards the maximum value (ISM), and to measure the input voltage (UE) across the internal resistance of the transducer in the process, and to compare it with a definable threshold value (UES) that is greater than the minimum input voltage (UEM) required to maintain serviceability. If the input voltage (UE) falls below the threshold value (UES) before the DC loop current (IS) has reached its maximum value (ISM), the DC loop current (IS) is reduced until the input voltage (UE) reaches at least the definable threshold value (UES), and the error is signaled.

Abstract: A physical layer device comprises a first transceiver that selectively communicates with a cable medium. A detector detects a power over Ethernet (POE) device. A switching device selectively provides power from a power supply over the cable medium when the detector detects the POE device. A cable tester communicates with the first transceiver, tests the cable medium and determines a cable status, and delays testing of the cable medium when the detector detects the POE device until the switching device provides the power.

Abstract: An accumulated current counter (11) includes a sense resistor (30) configured for being coupled in series between an electronic circuit (13) and a power source (12). The sense resistor is further for use in sensing a voltage (VIN(i)) across the sense resistor as a function of a current (Ibatt) provided via the power source. An incremental counter (16) is coupled to the sense resistor for incrementally counting an amount of current, corresponding to an average value of charge Q, going (i) into or (ii) out of the power source. A register (63) accumulates a representation of the incrementally counted current. In one embodiment, the representation of incrementally counted current corresponds to a remaining power source life in hours and minutes.

Abstract: A shielding member is provided as an electrostatic protection device in extension lines that extend from a sensing area to switching devices via extension areas correspondingly. As a result, even if a body to be detected such as a finger contacts the extension area, it is possible to reduce the amount of the change of an electrostatic capacitance with respect to the movement of the body to be detected. Therefore, it is possible to reduce influences exerted on data to be detected, and an electrostatic detection apparatus having improved coordinate detection accuracy can be provided.

Abstract: By mounting, on a semiconductor integrated circuit, a clock stability waiting circuit 4 for deciding whether a clock signal generated by a high speed clock generating circuit 2 is stable or not, a scan pass control circuit 7 capable of switching a scan pass structure based on a signal output from the clock stability waiting circuit 4 and an activation control circuit 6 capable of switching an order circuit to be activated based on the signal output from the clock stability waiting circuit 4, it is possible to carry out a parallel test in a stability waiting time having a high speed clock. Moreover, it is possible to externally monitor a signal capable of deciding a stability of a high speed clock. Therefore, it is easy to decide whether a failure is caused by a high speed clock generating portion or an internal circuit.

Abstract: In a method for locating objects enclosed in a medium, a detection signal is generated by at least one capacitive sensor. The detection signal penetrates the medium that is to be analyzed in such a way that information is obtained about the objects that are enclosed in the medium by evaluating the detection signal, particularly by measuring impedance. In order to evaluate the detection signal, an algorithm is used that separates the measured signal into signal parts originating from the enclosing medium and signal parts originating from the object enclosed in the medium. A measuring device carries out the inventive method.

Abstract: A method for determining a condition of a highly resistive fluid in transportation and industrial equipment. The method is suitable for determining the condition of a non-aqueous fluid including applying a high-frequency voltage signal between electrodes immersed in the fluid, measuring the fluid's response to the applied signal and determining a fluid property, and comparing the magnitude of the determined property, relative to the magnitude of that property when the fluid is fresh.

Abstract: A testing method for measuring electromagnetic interference of a noise on a to-be-tested printed circuit board, has the steps of: a) injecting a signal simulating an expected noise of a predetermined device mounted on the to-be-tested printed circuit board, into the to-be-tested printed circuit board, in a condition in which at least the predetermined device is not actually mounted on the to-be-tested printed circuit board; and b) measuring electromagnetic interference of the signal.

Abstract: In one implementation, an apparatus includes a foil that is adjacent to a portion of an ink developer electrode. The foil at least partially limits an accumulation of splashed ink along one or more portions of the ink developer electrode.

Abstract: Remote indication devices are each a combination of electrical parameter measurement circuitry, a CPU, and a communication device. Each remote indication device is electrically or electromagnetically coupled to a power distribution circuit conductor to monitor the current flowing in the conductor. The monitored conductor may be an energized power line (“phase”), or a current return line (“neutral”). In either case, the direction of power transfer at each measurement point can also be monitored by each remote indication device. Each remote indication device processes the monitored electrical current information to convert it into a form suitable for data transmission. The information is then presented to a monitoring station. The monitoring station collects and analyzes the electrical current information from the plurality of remote indication devices and is programmed to identify one or more particular power line segments that appear to have a fault.

Abstract: According to the methods of the invention, a further delayed DLL signal is compared to the reference clock and a delayed reference clock signal is compared to a DLL signal. These two comparisons are performed on the 360° signal and on the 180° signal. The delay introduced by the methods of the invention is preferably adjustable based on the results of a process monitor test. The process monitor test can be run continuously and accounts for process, voltage and temperature. The methods of the invention can also be used to test for clock skew in a clock tree on a chip.

Abstract: There is provided a method of source synchronous sampling, where a first clock signal of a first unit is synchronized to a second signal received from a second unit. The method includes determining a timing control signal on the base of the first clock signal and the second signal, generating an adjusted clock signal by adjusting the timing of the first clock signal corresponding to the timing control signal, and using the adjusted clock signal for sampling a signal received from the second unit. The second signal is a clock signal received from the second unit, the adjusted clock signal is used for sampling this clock signal itself, and a corresponding sampled clock signal is supervised to show proper clock functionality.

Abstract: An electrically operated vehicle abnormality judging device. The invention has an electrically operated machine, a driving signal generation processing section for generating a driving signal by receiving a command value, an inverter for receiving the driving signal and generating and supplying an electric current to the electrically operated machine, a line for driving for connecting the driving signal generation processing section and the inverter, a line for judgment branched from the line for driving and connected to a power source, and an abnormality judgment processor for judging whether an abnormality is generated in the line for driving on the basis of a signal of the line for judgment.

Abstract: A sensor assembly includes a sensing element electrically connected to a conductor of a flexible multiconductor cable using a conductive patch, which is electrically connected to the conductor. A method of forming a sensor assembly includes electrically connecting an electrically conductive patch to a sensing element and electrically connecting a conductor of a multiconductor cable to the electrically conductive patch.

Abstract: Techniques for triggering that provide time-aligned triggering of a set of components using a bussed topology. Triggering according to the present teachings includes a set of components that each include circuitry for measuring a propagation delay on a trigger bus of a test trigger signal from each of a set of sources of the test trigger signal and a programmable delay circuit for delaying a trigger signal in response to a corresponding delay setting derived from the measured propagation delays.

Abstract: An electron-emitting cathode consists of an electrically conducting emitter layer attached to a side wall which consists of stainless steel and a gate which is fixed at a mall distance inside a concave emitter surface of the emitter layer. The cathode surrounds a reaction area containing a cylindrical grid-like anode and a central ion collector which consists of a straight axial filament. An ion collector current reflecting the density of the gas in the reaction region is measured by a current meter while a gate voltage is kept between the ground voltage of the emitter layer and a higher anode voltage and is regulated in such a way that an anode current is kept constant. The emitter layer may consists of carbon nanotubes, diamond-like carbon, a metal or a mixture of metals or a semiconductor material, e.g., silicon which may be coated, e.g., with carbide or molybdenum. The emitter surface can, however, also be a portion of the inside surface of the side wall roughened by, e.g., chemical etching.

Abstract: A voltage-impressed current measuring apparatus, wherein the voltage from a direct-current power supply portion is impressed on the terminal of a device under test via a range switching portion and the current flowing in the same terminal is measured; wherein the range switching portion has a plurality of current buffers with switches corresponding to current measurement ranges, and a plurality of current measurement resistances respectively connected in series to the output sides of the same; and wherein the current flowing in the terminal of the device under test is measured by measuring the voltage across both ends of the current measurement resistance of the selected series connection, by a voltage difference measuring portion. Each current buffer with switch has an output stage capable of connection/disconnection in response to a control signal.

Abstract: When a spark discharge is produced, a first current flows in one direction. From a rise of an ignition signal to energize an ignition coil to a fall of the ignition signal to deenergize the ignition coil, in order that a second current flowing in the opposite direction can be detected, the voltage into which the second current has been converted is compared with a first threshold voltage for smolder detection. After the fall of the ignition signal to the rise of the ignition signal, the voltage into which the second current has been converted is compared with a second threshold voltage for misfire detection. The first threshold is set larger than the second threshold.

Abstract: A method for calibrating a filter begins with the filter filtering a first signal having a first frequency to produce a first filtered signal, wherein the first frequency is in a known pass region of the filter. The processing continues by measuring signal strength of the first filtered signal to produce a first measured signal strength. The processing continues with the filter filtering a second signal having a second frequency to produce a second filtered signal, wherein the second frequency is at a desired corner frequency of the filter. The processing continues by measuring signal strength of the second filtered signal to produce a second measured signal strength. The processing continues by comparing the first measured signal strength with the second measured signal strength to determine whether the filter has attenuated the second signal by a desired attenuation value with respect to the first signal.

Abstract: Provided is an apparatus and method for determining a faulted phase resulting from a fault in a three-phase ungrounded power system. The method includes comparing a phase angle of an operating phasor to a phase angle of a fixed reference phasor. The operating phasor is derived from a digitized signal sample of a plurality of measured signals of the power system. The method also includes comparing a phase angle difference between the operating phasor and the fixed reference phasor to at least one threshold to determine the faulted phase. The fixed reference phasor may be a phase-to-phase voltage or a positive sequence voltage of the plurality of measured signals of the power system. The operating phasor may be a zero sequence current, a zero sequence voltage or a combination of a zero sequence current and a zero sequence voltage of the plurality of measured signals of the power system.