摘要:
A simulator for developing an acoustic detector of underwater vehicle precisely verifies performance of an acoustic detector by simulating an actual underwater environment, including target signal, applied to an underwater vehicle. The simulator an I/O communication unit for receiving information required for simulating an underwater environment from an acoustic detector and an motion simulator; a signal generator for receiving the information from the I/O communication unit to calculate a digital signal model; a D/A converter for converting the digital signal model into an analog signal; a signal conditioner for generating a signal similar to the signal of an actual underwater environment by controlling frequency and gain of the analog signal; and a remotely controlled computer for loading an OS to the signal generator and displaying various operation status.
摘要:
The present invention provides a distance measurement method and device using ultrasonic sufficiently amplifying a received ultrasonic wave signal and separating a specific frequency from an ultrasonic wave signal mixed with an unnecessary signal to extract an arrival signal of a first pulse. It is thus possible to calculate a distance of an object safely.
摘要:
Provided is a withdrawal apparatus of a cash transaction machine, including: a storage means for storing paper media; a stack means for stacking the paper media transferred from the storage means; a withdrawal means for providing a stack of the paper media transferred from the stack means to a customer; a first transfer means transferring the paper media from the storage means to the stack means; a second transfer means for transferring the stack of the paper media from the stack means to the withdrawal means, which is separated from the first transfer means; and a stack transfer means for transferring the stack of the paper media in the stack means to a pathway defined by the second transfer means. The pathways defined respectively by the first and second transfer units are separately divided, thereby rapidly transferring the paper media and distinguishing the structure for transferring the paper media from the structure for transferring the stack of the paper media in order to prevent a trouble of the apparatus.
摘要:
A pump for a fuel cell of a noise suppression and vibration proof structure and a fuel cell system using the same. The pump includes a housing including a metal housing main body and an inlet hole and an outlet hole for receiving and discharging a fluid and a pump inserted into the housing and including an inlet pipe through which the fluid is received and an outlet pipe that passes through the outlet hole and through which the received fluid is discharged with predetermined pressure. Therefore, the noise and vibration of the pump are reduced.
摘要:
A variable speed motor is disclosed. The variable speed motor includes: a main winding including first and second main windings, and an auxiliary winding including first and second auxiliary windings, wherein the main winding and the auxiliary winding are wound on a stator to form a plurality of poles; and a plurality of relays for performing a switching operation between serial/parallel connections of the first and second main windings or the first and second auxiliary windings. The variable speed motor includes: a stator on which a 4-pole winding and a 12-pole winding are wound; a plurality of tap windings connected in series to a 4-pole main winding forming 4 poles, for extending a variable range of rotation speed of the motor during a 4-pole operation mode; and a phase control circuit for varying rotation speed of the motor by controlling a phase of an input power-supply signal during a 12-pole operation mode. Therefore, the variable speed motor greatly extends the range of a variable speed of the motor, and does not require an additional drive unit for varying the motor speed, such that production costs are greatly reduced, and electromagnetic vibration noise caused by a low-speed control mode of the motor is also greatly reduced. Rotation speed of the motor is controlled by a phase control operation and a winding switching operation, such that the variable speed motor effectively controls the motor speed, and greatly reduces power consumption.
摘要:
Disclosed are an apparatus and method for detecting double-feed of paper to prevent banking accidents or jam in a paper handling machine for handling paper, sheets of currency note are not separated by a sheet separating means and thus plural sheets are double fed. The apparatus includes paper feeding means for guiding upper and lower surfaces of the paper and feeding the paper, a pivot member pivotally installed to a rotary shaft, and having a contact portion disposed in a paper feeding path of the paper feeding means and contacting with one surface of the feeding paper, and an encoder portion with a plurality of slits, in which the rotary shaft is closer to the contact portion rather than the encoder portion, and a sensor for counting the number of slits of the encoder portion when the pivot member pivots. The present invention can accurately detect the overlay of the paper having a thin thickness with a simple construction. Also, the present invention can detect the overlay of the paper, regardless of a size and thickness of the paper and a transferring direction of the paper.
摘要:
Provided are methods for manufacturing improved cerium oxide abrasives suitable for forming slurry compositions suitable for CMP processes. The cerium oxide abrasives are produced by the heat treatment of a mixture of a cerium precursor compound under conditions that produce primary cerium oxide particles that are incorporated in larger secondary abrasive particles. The structure of the primary cerium oxide particles and/or the presence of incompletely oxidized cerium within the secondary abrasive particle tend to reduce its mechanical strength, thereby reducing the likelihood of damaging a substrate surface during a CMP process utilizing such abrasives.
摘要:
A shutter mechanism of an automated-teller machine according to the present invention comprises a main body including a frame, a shutter slidably coupled to a front side of the frame, a first protrusion protruding inward on an inner lateral surface of the shutter, and a fixing member protruding on a side surface of the frame; an opening/closing means for opening and closing the shutter in response to an external signal; a locking unit for preventing the shutter from being opened by an external force without a separate signal; and a driving unit for simultaneously operating the opening/closing unit and the locking unit. Therefore, the present invention provides a shutter mechanism of an automated-teller machine, wherein a shutter-opening/closing operation and a shutter-locking operation can be simultaneously carried out using a single driving source, thereby simplifying its structure and also reducing its production costs, and interference that may occur while the shutter is being closed does not impose a load on the driving source, thereby preventing damage to and malfunction of the mechanism, reducing a failure rate and also maintaining a smooth operational state.
摘要:
A backlight driving system is provided for a liquid crystal display device. The backlight driving system comprises at least one backlight having at least one terminal, an inverter and at least one transformer. The inverter supplies a voltage to the backlight and has first and second output terminals. The transformer has a first input coil and a second input coil that are connected to the first and the second output terminals of the inverter. The transformer transforms the voltage outputted from the inverter and applies a transformed voltage to the backlight via the terminal of the backlight.
摘要:
Disclosed is a dryer enabling a stable and easy installation of a power supply unit. The dryer includes: a housing; a drum rotatably installed inside the housing and configured to dry laundry; a heating unit for generating hot air and supplying the drum with the hot air to dry the laundry; a discharge unit for discharging the hot air in the drum to an outside; and an installation assembly formed integrally with a rear wall of the housing and configured to install a terminal block of a power supply unit at the rear wall.