35results about How to "Detect disconnection" patented technology

The invention provides an inspection device for detecting a break and short circuit in gate wires on a TFT substrate before forming a pixel part. The inspection device is used for inspecting a defect in the gate wires 2 on the TFT substrate 1 comprising a plurality of gate wires 2 which are inspecting objects, and a plurality of COM wires 3 capable of forming inter-wire capacitance between themselves and the gate wires 2, respectively. The inspection device includes a pulse generation part for impressing the gate wires 1 with a voltage, a capacitance detector 5 for detecting the inter-wire capacitance between the gate wires 2 and the COM wires 3, and capacitance connected between the COM wires 3 and the capacitance detector 5.

The present invention provides a radiographic imaging device, a radiographic imaging system, a computer readable medium storing disconnection detection program and a disconnection detection method that may detect disconnected specific signal lines even when the charge amount output from a single pixel is small. Namely, a bias voltage is applied to pixels, and offset charges due to leak current of sensor portions (photodiodes) are accumulated. The gates of pixel TFT switches are switched ON in sequence, and electric signals are output corresponding to the accumulated offset charges. A control section detects a cumulative value of the offset charge amount based on the electric signals. The detected cumulative value is then compared to a predetermined disconnection detection threshold value and disconnected signal lines are detected when the cumulative value is less than the threshold value.

The present invention provides a radiographic imaging device, a radiographic imaging system, a computer readable medium storing disconnection detection program and a disconnection detection method that may detect disconnected specific signal lines even when the charge amount output from a single pixel is small. Namely, a bias voltage is applied to pixels, and offset charges due to leak current of sensor portions (photodiodes) are accumulated. The gates of pixel TFT switches are switched ON in sequence, and electric signals are output corresponding to the accumulated offset charges. A control section detects a cumulative value of the offset charge amount based on the electric signals. The detected cumulative value is then compared to a predetermined disconnection detection threshold value and disconnected signal lines are detected when the cumulative value is less than the threshold value.

A method for inspecting the strips of a touch panel is disclosed. The method includes providing a first signal to a first driven first strip of a plurality of first strips and generating a plurality of continuous first differences according to signals on a plurality of second strips; providing the first signal to the first driven first strip and a second driven first strip of the plurality of first strips and generating a plurality of continuous second differences according to the signals on the plurality of second strips; and determining if there is a broken second strip between the first and second driven first strips based on the continuous first and second differences. Herein, the plurality of first and second strips intersect each other on the touch panel to form a plurality of intersecting regions.

Provided is an operation status diagnosing device for an external control means, which is enabled by a simple constitution to perform the transmission of the drive status of an external control means constituted of either a relay contact to be activated by an ON / OFF signal or an ON / OFF means made of a semiconductor, and the transmission of a signal indicating the occurrence of troubles such as disconnection or shorting of a wiring line and the transmission of an electric power by a common means, thereby to prevent the rise of a production cost due to the increase in a parts count or the complexity of a circuit constitution and to diagnose the transmission of the signal and the soundness of the circuit precisely. The operation status diagnosing device for the external control means is constituted to comprise a second switch circuit for turning ON / OFF an alternating voltage generating means output in response to the drive signal of the external control means, thereby to apply that output to an insulating transformer primary side, a first switch circuit serving as an external control means connected with an insulating transformer secondary side, so that it is turned ON / OFF by the second switch circuit, an external control means operation status detecting circuit connected with the insulating transformer secondary side, so that an electric current flows therethrough when the first switch circuit is ON, and a measuring means connected with the second switch circuit, for measuring the electric current to flow to the insulating transformer primary side.

An angular velocity sensor includes a sensor unit, a detection unit and a connecting part electrically connecting the sensor unit and the detection unit. The detection unit drives the sensor unit and detects an angular velocity acting on the sensor unit. The detection unit supplies a carrier signal to a movable electrode of a capacitor of the sensor unit and supplies a driving signal to a fixed electrode of the capacitor via the connecting part for performing a servo control. A C / V converter circuit of the detection unit receives capacitance generated at the capacitor through a driving signal transmission line of the connecting part in a state where supply of the driving signal is stopped, and converts the capacitance into a voltage. A determination part of the detection unit determines whether the driving signal transmission line has disconnection or not based on the voltage outputted from the C / V converter circuit.

The invention discloses a wind generating set blade lead wire breakage on-line test system and method. The system comprises a blade and a lightning conductor arranged in the blade. The method is characterized in that an active transmitting device and a high-frequency sensor system are arranged at the two ends of a lightning conductor respectively, after the active transmitting device loads high-frequency pulses to the lightning conductor, the high-frequency pulses are transmitted to a high-frequency sensor along the lightning conductor, and the high-frequency sensor system receives high-frequency pulse signals; the lightning conductor is in communication connection with an upper computer system in a wired or wireless mode, and the upper computer system executes on-off alarm of the lightning conductor according to whether the signal is received or not; through the system and the method, the lightning protection system of the fan blade can be monitored in real time, the efficiency is high, detection can be carried out without shutdown, and economic loss consumed by detection is reduced.

A rotary electric machine for a vehicle is provided. The rotary electric machine includes a power system circuit which has a power element and is grounded via a first ground terminal and a first connecting line and a control system circuit which controls the power system circuit and is grounded via a second ground terminal and a second connecting line.

The invention discloses an online monitoring system for blade lead breakage of a wind generating set and a positive and negative testing method. The online monitoring system comprises a blade arranged on a fan tower and a lightning conductor arranged in the blade, and the lightning conductor is arranged from the blade tip of the blade to the blade root of the blade; the device is characterized in that a radio frequency signal device is arranged at the position, right opposite to the blade tip of the blade, of the tower drum; a passive sensing system is arranged at the tip of the paddle, the passive sensing system is in non-contact connection with the lightning conductor, and information interaction is generated between the passive sensing system and the radio frequency signal device in a pulse wave form; a terminal device is arranged at the position of a fan hub; a communicated information loop is formed among the terminal equipment, the lightning conductor and the passive sensing system; and receiving and sending of radio frequency signals between the terminal equipment and the radio frequency signal device are controlled through the upper computer. Through the system and the method, the lightning protection system of the fan blade can be monitored in real time, the efficiency is high, detection can be carried out without shutdown, and economic loss consumed by detection is reduced.

A noise suppression cable includes an electrical wire, a first magnetic material including a pair of first surfaces formed along an axis direction of the electrical wire and a convex portion projecting from the first surfaces, and a second magnetic material including a pair of second surfaces disposed on a periphery of the electrical wire, the pair of the second surfaces contacting the pair of the first surfaces such that a tubular shape is formed by the first and second magnetic materials. The first magnetic material and the second magnetic material are configured to generate a compression stress in the convex portion of the first magnetic material by receiving an external force so as to reduce a relative permeability of the convex portion.

The present application relates to a wire break detection device, a signal processing unit and a wire break detection method. The disconnection detection device includes a confirmation signal output module configured to output a transmission sound signal from the signal processing unit, and a detector. The transmission sound signal includes an acknowledgment signal having a frequency different from a frequency band used to transmit information contained in the transmission sound signal transmitted from the signal processing unit to the communication unit. The detector is configured to detect whether a disconnection occurs in the connection line based on a transmitted sound signal including the confirmation signal returned from the communication unit to the signal processing unit via the connection line.

A protection IC connected to cell groups of a secondary battery assembly of a secondary battery connected in series and monitoring battery voltages of the cells in the cell groups, including terminals connected to connection points of the cells in the cell groups and both ends of the cell groups; a first alarm generating portion detecting an overvoltage by comparing voltages of the cells of the cell groups on both ends of the cells and generates the first alarm signal; and a second alarm generating portion detecting disconnection in connection points of the cells and disconnection between the connection points of the cell groups and the both ends and the terminals by detecting voltage drop or current decrement at the connection points of the cells of the cell groups and at one end of the cell groups in the cells, and generates a second alarm signal.

An array substrate has a plurality of gate signal lines, a plurality of source signal lines orthogonal to the plurality of gate signal lines, a plurality of gate-driver mounting terminals, a plurality of source-driver mounting terminals, a plurality of gate-side array inspection terminals connected to the gate signal lines, a plurality of source-side array inspection terminals connected to the source signal lines, a plurality of gate lead wire disconnection inspection circuits connected between the plurality of gate-driver mounting terminals and a common terminal for a gate lead wire disconnection inspection, and a plurality of source lead wire disconnection inspection circuits connected between the plurality of source-driver mounting terminals and a common terminal for a source lead wire disconnection inspection.

The invention discloses a line breakage automatic testing device for production of a communication optical fiber cable. The device comprises a production line platform. The leftmost end of the production line platform is provided with a pay-off device. The right side of the pay-off device is provided with a two-stage optical fiber detecting assembly. The right side of the two-stage optical fiber detecting assembly is provided with a diameter measuring instrument. The right side of the diameter measuring instrument is provided with a sheath processing device. The rightmost end of a production line platform is provided with a wire winding machine. A to-be-tested optical fiber is arranged above the production line platform. According to the line breakage automatic detecting device, a two-stage optical fiber testing assembly is utilized; and measurement is performed according to a comparison method in which a returning signal is received by means of a backward scattering method and a manner of utilizing optical-magnetic modulation and converting modulated light to an electric signal. Because the measuring facility for the electric signal is more accurate, the breakage condition of theoptical fiber cable can be accurately tested. Furthermore the line breakage automatic testing device can perform comprehensive testing on signal damping and signal transmission capability of the optical fiber and fills a gap of testing line breakage in the optical fiber production process in prior art, thereby realizing high popularization value.