摘要:
An ultrasonic operation apparatus comprises a hand piece accommodating an ultrasonic transducer for generating ultrasonic vibrations, a probe which is connected to the hand piece and to which the ultrasonic vibrations are conveyed, a drive signal generating unit for generating a first drive signal that drives the ultrasonic transducer, and a second drive signal the output level of which is different from the first drive signal and for outputting the generated drive signals to the ultrasonic transducer, an output detecting unit for detecting the output current and the output voltage of the second drive signal to the ultrasonic transducer, and a controlling unit, which controls the operations of the drive signal generating unit based on a phase difference between the output voltage and the output current of the second drive signal, for judging the running state of the probe or the hand piece by determining whether or not a resonance frequency at which the phase difference between the output voltage and the output current becomes almost zero can be detected within a predetermined range.
摘要:
According to a semiconductor device of the present invention, a differential potential between a sense amplification level and a precharge level of a sense amplifier is set to a power supply potential (VCC-GND) so as to improve resistance against degradation of hold characteristics. Further, low power consumption can be realized along with the improvement. Additionally, the precharge level is set to a power supply of GND or VCC so as to realize a stable supply of the precharge level. Further, a chip size can be reduced since a power supply circuit for precharge is not needed.
摘要:
A novel semiconductor device high in both heat dissipating property and connection reliability in mounting is to be provided. The semiconductor device comprises a semiconductor chip, a resin sealing member for sealing the semiconductor chip, a first conductive member connected to a first electrode formed on a first main surface of the semiconductor chip, and a second conductive member connected to a second electrode formed on a second main surface opposite to the first main surface of the semiconductor chip, the first conductive member being exposed from a first main surface of the resin sealing member, and the second conductive member being exposed from a second main surface opposite to the first main surface of the resin sealing member and also from side faces of the resin sealing member.
摘要:
An airbag device for pedestrian is structured to inflate plural airbags side by side to suppress the impact to the pedestrian hit by the automobile at the area around the abutment portion between the adjacent airbags. An airbag 5L inflates to cover left half side of a rear edge portion of a hood 3, a cowl top 2 and a windshield 6 from the center of the automobile in a width direction, and an airbag 5R inflates to cover right half side. In the inflation state, the airbags 5L and 5R are brought into abutment around the center of the automobile in the width direction. Recess portions 10F and 10R are formed as cut portions of a front wall portion 8b and a rear wall portion 8c of an airbag storage case 8 from upper edge portions below the abutment portion between the airbags 5L and 5R.
摘要:
An exhaust assembly is described for use in a plasma processing system, whereby secondary plasma is formed in the exhaust assembly between the processing space and chamber exhaust ports in order to reduce plasma leakage to a vacuum pumping system, or improve the uniformity of the processing plasma, or both. The exhaust assembly includes a powered exhaust plate in combination with a ground electrode is utilized to form the secondary plasma surrounding a peripheral edge of a substrate treated in the plasma processing system.
摘要:
In a bumper, a touch sensor and a load detection sensor detect a load applied to the bumper in the event of a head-on collision, when pressed by an absorber. The touch sensor and the load detection sensor are provided in front of reinforced portions of a front wall of a bumper reinforcement. The touch sensor is provided in front of the load detection sensor with a load transfer plate interposed the touch sensor and the load detection sensor. In addition, in the event of a head-on collision, deformation of the front wall is suppressed by the reinforced portions and the load is appropriately applied to the touch sensor and the load detection sensor, and the load is appropriately applied from the touch sensor to the load detection sensor. Thus, the detection performance of the touch sensor and the load detection sensor can be stabilized.
摘要:
Pressing an electronic device (2) to be tested to contact terminals (132a and 132b) while bringing a heater (112) having equal or close temperature change characteristics to those of the electronic device to be tested by a test pattern, transmitting a test pattern to the electronic device to be tested in this state, and controlling a power consumption of a heater so that total power of a power consumption of the electronic device to be tested by the test pattern and a power consumption of the heater becomes a constant value.
摘要:
There are provided a voltage level control circuit with a reduced power consumption and a method of controlling the same. When a signal “A” is in a “L” level and a signal PL entered from the outside of the voltage level control circuit becomes “H” level, a latch signal La outputted from a latch (11) becomes “H” level, whereby NFETs (14, 17, 24) turn ON. A voltage dividing circuit comprising resistances (12, 13) and current mirror differential amplifiers (20, 27) are placed in active states to output “H” as a signal A which controls a boost voltage Vbt (word line driving voltage. As the boost voltage Vbt is increased and reaches to a reference voltage Vref2, a voltage V2 becomes “H”, whereby the signal A becomes “L”. After the signal A become “L”, the latch (11) is made through. At this time, the signal PL is “L”, the latch signal La outputted from the latch (11) becomes “L”, whereby the NFETs (14, 7, 24) turn OFF. As described here, the NFETs (14, 7, 24) is kept OFF in the other time period than when needed, in order to reduce the power consumption.
摘要:
A method for fabricating an optical fiber impulse sensor having an optical fiber and a molded portion molded around the perimeter of the optical fiber. The method forms, in the molded portion, an optical fiber insertion hole and an optical fiber insertion slit for inserting the optical fiber into the optical fiber insertion hole. The method inserts the optical fiber from the slit into the optical fiber insertion hole.
摘要:
In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a frequency ratio A (fr/fm) is computed. When the frequency ratio A exceeds the upper limit of a first predetermined range, a warning message is displayed to prompt the user to perform maintenance. When the frequency ratio A exceeds the upper limit of a second predetermined range, an alarm message is displayed and the motor is stopped.