摘要:
A method for generating an underliquid shock pressure comprises the steps of igniting a combustible mixture gas to form detonation waves, imploding the detonation waves in their advancing direction, propagating a pressure obtained by imploding the detonation waves to a liquid, and converting the pressure to an underliquid pressure which is applied to a workpiece. The pressure obtained by imploding the detonation waves may be applied directly to an elastic rubber body, thus converting the pressure to an underelastomer shock pressure, which is then applied to the workpiece via the elastic body. An apparatus for generating an underliquid shock pressure comprises a combustion chamber whose cross-sectional area decreases from one end toward the other end of the chamber, an ignition chamber to which fuel is fed and in which a spark plug is positioned, a plurality of guidance paths extending from the ignition chamber and communicating with one end of the combustion chamber, each of the guidance paths having substantially the same length, and a pressure medium chamber connected to an opening of the other end of the combustion chamber having the smallest cross-sectional area. The pressure at the smallest cross-sectional area end of the combustion chamber is applied to a liquid to convert the pressure into underliquid shock pressure, which is then applied to a workpiece either directly or via an elastic body interposed between the liquid and the workpiece.
摘要:
A low pressure discharge lamp apparatus has a low pressure discharge lamp with an arc tube. The arc tube has a first end and a second end, each with electrodes which define a discharge space therebetween. A mercury/rare gas is sealed in the arc tube. The low pressure discharge lamp apparatus further has a lighting circuit apparatus for lighting the lamp by supplying a current with a polarity reversed for each half cycle to electrodes in the first and second ends of the arc tube. The lighting circuit apparatus supplies, to the lamp, a current whose waveform has a flat peak for each half cycle and a maximum current value of the current is restricted to less than a level in which the excitation of mercury atoms is saturated.
摘要:
Used in an apparatus for pulling a Si single crystal 36 up from Si molten liquid 35 by using the Czochralski method. In order to produce a Si single crystal having a desired quality, the diameter of the Si single crystal is controlled by controlling the pull-up speed of the Si single crystal, the sum of a reference temperature set value T.sub.B (X), which is a function of a pull-up distance X of the Si single crystal from a certain growth point, and a value proportional to a diameter deviation .DELTA.D is regarded as a reference temperature, and electric power supplied to a heater (24) for heating the Si molten liquid is controlled so that the temperature of the vicinity of the heater is equal to the reference temperature. In order to easily and quickly set the temperature pattern, various operational data in producing a Si single crystal is automatically collected and stored in a magnetic memory disk (82) corresponding to quality data of the Si single crystals which have been produced, data similar to the quality of a Si single crystal to be produced is retrieved from the stored data, an operator selects the most similar data, the selected operational data is displayed in a display unit (80), and the operator sets the reference temperature pattern T.sub.B (X) on a screen of the display unit by using a mouse (78).
摘要:
When a cold reduced steel of which chemical composition is substantially controlled within the range of 10x[S]% to 2.00% [Mn], 0.003 to 0.02% [N] and (
摘要:
When an RFID is attached to an object to assist testing operations, the following problems are encountered; (1) the RFID of write type tends to cause a failure and is troublesome due to the necessity of rewrite each time the situation is changed, (2) the incorporation of the reader function in a terminal block increases the cost, and (3) the known techniques are targeted for only the connecting operation and are not adapted for a sequence test that takes the most expense in time and effort. The operations are aided by using an RFID reader and a terminal having the function for accessing a database of circuit information, RFID information, and test procedure information.
摘要:
A cable connection guiding method includes the steps of extracting conductor identification information being used to identify a conductor from a RFID tag connected to the conductor of a cable, and indicating a terminal indicating device associated with an obtained terminal, according to terminal identification information.
摘要:
A cable connection guiding method includes the steps of extracting conductor identification information being used to identify a conductor from a RFID tag connected to the conductor of a cable, and indicating a terminal indicating device associated with an obtained terminal, according to terminal identification information.
摘要:
A monitoring system for valve device according to the present invention comprises a semiconductor single crystalline substrate including a bridged circuit and the bridged circuit comprising impurity-diffused resistors. The semiconductor single crystalline substrate is mounted to any of a valve device's valve stem, valve yoke, drive shaft, or elastic body disposed at the end of the drive shaft. Thrust and torque of the valve device are measured by the semiconductor single crystalline substrate and then the measured values are used for monitoring the valve device.
摘要:
Disclosed is a project management support device which compares, when a project is planned, standard work information stored in a standard work information database 21 with work information planned based on the standard work information according to a project target or a project condition, displays added or omitted work information extracted from the comparison and information to be noted which is related to the added or omitted work information on a display device 4. The project management support device further compares, during implementation of the project, the standard work information stored in the standard work information database 21 with work information changed based on progress or a state of the work in the project, and displays the added or omitted work information extracted from the comparison and information to be noted which is related to the added or omitted work information on the display device 4.
摘要:
A surface-mounting thin type capacitor includes a capacitor element having a shape of and two end portions which form a side surface of the capacitor element. Two anode terminals are disposed on lower surfaces of the end portions along the side surface to form a mounting surface substantially perpendicular to the side surface. A cathode terminal is disposed at a middle part of the capacitor element to form the mounting surface together with the anode terminals. The cathode terminal is not between the anode terminals spatially and thereby manufacturing process of the capacitor is simplified and it is easy to change the intended use of the capacitor.