32 results about "Electrical Problem" patented technology

The object of the present invention is to provide an ultrasonic probe of high performance and high quality. Disclosed is an ultrasonic probe comprising a high molecular material 11 having a conductive layer 10 and is disposed between a piezoelectric element 1 and an acoustic matching layer 7, wherein the high molecular material has an acoustic impedance substantially equal to that of the acoustic matching layer 7. The ultrasonic probe configured as above can be formed into a slim shape which is easy to operate without degrading the performance thereof such as sensitivity, frequency characteristic or the like. The ultrasonic probe is structured so as not to cause electrical problem due to breaking of wire even if the piezoelectric element is cracked by a mechanical impact or the like, and thus a high quality ultrasonic probe can be provided, and the noise can be reduced.

A safety device can provide electrical shock protection for an electrical appliance. Voltage sensors can monitor voltage levels among a power conductor, a neutral conductor, and a ground conductor. When sensed voltages indicate that these conductors are properly wired to an electrical power utility, inline switches can close to allow power to pass through the safety device to the appliance. When one or more of the sensed voltages indicates that the power level is too low to operate the appliance, one or more switches of the safety device can open to block power from passing through to the appliance. When one or more of the sensed voltages indicates that an electrical problem posing a shock hazard exists in the electrical appliance, one or more switches of the safety device can open to interrupt power from transmitting to the appliance.

This invention relates to various methods for using a thermal imaging apparatus to inspect exterior and interior residential components. In particular these methods can be used to detect mold, electrical problems and moisture in EFIS residential building components.

In a reflective liquid crystal display device according to the invention, while maintaining alignment characteristics by an obliquely evaporated alignment film, an electrical problem due to the film structure can be solved, and ions or the like can be prevented from passing through an alignment film, thereby long-term drive reliability can be achieved. Further, misalignment and nonuniform alignment due to the structure of an inter-pixel groove can be prevented so as to achieve superior image quality. In a side of each of a pixel electrode substrate and a transparent electrode substrate closer to a vertically aligned liquid crystal, an obliquely evaporated alignment film is formed on a vertically evaporated film. As the vertically evaporated film is formed as a base film, while maintaining the alignment characteristics of the obliquely evaporated alignment film, an electrical problem due to the film structure can be solved, and ions or the like can be prevented from passing through the obliquely evaporated alignment film so as to achieve long-term reliability. Further, an obliquely evaporated alignment film is formed on a region of the inter-pixel groove through evaporation from an oblique direction with respect to the substrate surface of the pixel electrode substrate, so misalignment and nonuniform alignment due to the structure of the inter-pixel groove can be prevented.

The invention provides an active component array substrate comprising a substrate body, a pixel circuit, a flat layer and a conductor pattern. The pixel circuit is arranged on the substrate body. The flat layer is arranged on the substrate body and at least partially overlaps the pixel circuit. The flat layer is provided with a groove, and the groove is arranged on the periphery of the substrate body and surrounds the pixel circuit. At least one side, adjacent to the groove, of the flat layer is provided with a cutting structure. The conductor pattern is arranged in at least part of the groove, is adjacent to the flat layer, and is provided with multiple discontinuous sections. A gap is formed between every two adjacent sections, and the gaps correspond to the cutting structure of the flat layer. The side, adjacent to the groove, of the flat layer is provided with the cutting structure, so that an electrical problem caused by residual metal can be avoided.

The system and method for determining the operational condition of an electric fuel pump (16). The test apparatus (22) is configured to perform first, second and third tests. During the first test, a low voltage, low current signal is applied to produce an inductive reflectance from the pump armature winding. During the second test, continuity is assessed in the coil winding circuit. During the third test, a higher power, short duration pulse is applied to create rotational movement of the pump armature for the purpose of detecting mechanical and/or electrical issues not otherwise discerned from the prior tests. An optional fourth test may be conducted in which the pump (16) is run for a short period of time at standard operating power to generate a current waveform. Collected test data is compared to stored reference data sets using a processor contained within the test apparatus (22). If collected test data corresponds within an acceptable threshold range to the reference data, a PASS signal is generated.

Systems, methods, and apparatuses for isolating an electrical problem in a power pack include a system in accordance with various embodiments of the invention. The system includes a power pack. The power pack includes an input cord including at least a first indicator, wherein the input cord is adapted to receive electrical current from an electrical source, and further adapted to transmit the electrical current to the power pack, and wherein the first indicator indicates when the input cord transmits electrical current from the electrical source. The power pack also includes a housing including at least a second indicator, wherein the second indicator indicates when the power pack receives electrical current from the input cord. The power pack further includes a device cord adapted to conduct electrical current from the power pack to an electrically-powered device, the device cord including at least a third indicator, wherein the third indicator indicates when the power pack transmits electrical current through the device cord.

The invention provides a charger module, which comprises a metal frame, wherein the metal frame is internally provided with an input rectification unit, an IGBT unit, a combined voltage transformationunit and an output rectification unit, wherein the input rectification unit is used for rectifying flowing three-phase alternating current into direct current, the IGBT unit is used for inverting thedirect current outputted by the input rectification unit into alternating current, the combined voltage transformation unit is used for reducing voltage of the alternating current outputted by the IGBT unit, the IGBT unit is connected with the input rectification unit and the combined voltage transformation unit through an inversion composite busbar, the output rectification unit is used for rectifying the voltage-reduced alternating current into direct current to output, and the output rectification unit is connected with the combined voltage transformation unit through a rectification composite busbar. The charger module realizes the connection of the devices through the rectification composite busbar and the inversion composite busbar, and effectively solves the common electrical problems of electromagnetic compatibility, eddy current magnetic field and high impedance of a high-frequency power supply, so that the charger module is enabled to be more stable and reliable in operationand have excellent compatibility and applicability.

The present invention relates to a quick reference electrical voltage testing tool utilizing a variable voltage range light bulb and digital read out voltage meter both incorporated in the testing tool's handle. The variable voltage range light bulb indicates to the user the knowledge of voltage present and the digital voltage read out indicates the measured amount of voltage available to the tested component. This allows for a faster diagnosis of an electrical problem particularly when voltage sensitive components are being tested. When testing electrical components for non-operation, this quick reference tool will allow a much quicker diagnoses of an electrical problem without the need of a voltage meter.

The invention relates to a resuspension solution for preparing brewer's yeast electrosensitive state cells and a preparation method of the brewer's yeast electrosensitive state cells. The resuspensionsolution comprises 5-15mM of a glycine-NaOH buffer solution, ethylene glycol which accounts for 1-5% of the total volume of the resuspension solution, dimethyl sulfoxide which accounts for 2-8% of the total volume of the resuspension solution, and 0.5-1.5M of sorbitol. By adopting the resuspension solution, the problem that in the prior art brewer's yeast electrosensitive state cells cannot be cryopreserved is solved, the valence attenuation of the cryopreserved brewer's yeast electrosensitive state cells is alleviated, experiment requirements can be met, and the brewer's yeast electrosensitive state cells can be cryopreserved for a long time and do not need to be prepared and used on site.

The invention discloses an externally heating type vacuum heat treatment tank in the field of heat treatment equipment. The tank comprises a tank body, wherein the tank body has a closed bottom and an open top, an exhaust assembly connected with the tank body in a sealed manner is arranged at an opening in the top of the tank body, the exhaust assembly is provided with an exhaust tube communicated with the inside of the tank body, and a heat-resistant chuck arranged at a resistance furnace door opening is arranged on the periphery of the middle of the tank body. The tank has the benefits as follows: the tank is simple in structure, easy to manufacture and convenient to operate and maintain, an electrical heating element performs heating outside the vacuum tank, the vacuum discharge phenomenon cannot occur, other electrical problems such as short circuits, carbon deposition and the like are solved, besides, workpieces are sealed in the tank and cannot have chemical reactions with the electrical heating element, a furnace lining and the like, the production is safe and reliable, the vacuum tank is small in volume, few accessories are arranged in the tank, vacuum sealing is easy, the sucking quantity is small, and the required vacuum degree is reached easily.

The invention discloses a junior high school electrical problem solving prompt device and method. The prompt device is characterized in that the prompt device comprises a prompt machine body and a slide cover; a headphone jack, a memory card jack and a USB connection hole are disposed right in front of the prompt machine body; a chute, a switch key, a direction adjustment key, a reset key, numberkeys and letter symbol keys are arranged above the prompt machine body; the inner portion of the chute is in sliding connection with a slide block whose upper portion is fixedly connected with a slidecover; a display and a solar panel are arranged on the slide cover; the prompt machine is internally provided with a circuit board, batteries, an inverter and a power line. The prompt device has theadvantages of having good technical effects, improving the ability to provide students with accurate and personalized learning resources, reducing the serious waste of student's study time, increasingthe solving time as compared with the prior art; further, through the arrangement of the solar panel, effectively cutting down energy consumption, enhancing use convenience, and promoting the conceptof energy conservation and environmental protection.

The invention discloses an external heating type vacuum heat treatment tank in the field of heat treatment devices. The external heat type vacuum heat treatment tank comprises a tank body, wherein thebottom of the tank body is sealed, and the top of the tank body is open; an air suction assembly which is in sealed connection to the tank body is arranged at the opening in the top of the tank body,the air suction assembly is provided with an air suction pipe communicating with the interior of the tank body, and the periphery of the middle part of the tank body is provided with a heat-resistantchuck used for being placed at a gate of a resistance furnace. The external heating type vacuum heat treatment tank has the advantages of being simple in structure, easy to manufacture, and simple and convenient to operate and maintain; an electric heating element can be heated outside a vacuum tank, the phenomenon of vacuum discharge is avoided, and other electrical problems such as short circuit and carbon deposit are avoided; a mold is sealed in a furnace tank, and does not generate chemical reactions with an electric heating element, a furnace lining and the like; and the production is safe and reliable, the volume of the vacuum tank is small, the number of accessories in the tank is small, the vacuum sealing is easy, the gas extraction amount is small, and the required vacuum degreeis easy to achieve.

An electrically heated water boiling vessel incorporating a planar heating element (2) has an element protector control (9) for switching off the supply of electricity to the heating element (2) in response to a sensed element overtemperature condition and a steam sensor (10) for switching off the heating element (2) in response to the generation of steam when water is boiled in the vessel. The element protector control (9) and the steam sensor (10) are located in a bottom part of the vessel which is compartmentalized so as to segregate the potentially wetted environment of the steam sensor (10) from the element protector control (9) and thereby avoid electrical problems.