Abstract: An error rate measuring apparatus includes an operation unit that sets one Codeword length and one FEC Symbol length of FEC according to a communication standard of a device under test W, a storage unit that stores symbol string data obtained by receiving and converting a signal from the device under test W, data division means for dividing the stored symbol string data into MSB data and LSB data, a data comparison unit that compares each of the divided MSB data and LSB data with error data to detect each of MSB errors and LSB errors of each one Codeword length, and detects FEC Symbol Errors of each of the MSB data and the LSB data at one FEC Symbol interval, and error counting means for counting the detected MSB errors, LSB errors, and FEC Symbol Errors.

Abstract: An error rate measuring apparatus that inputs a PAM4 signal of a known pattern as a test signal to a device under test W, receives a signal from the device under test W compliant with the input of the test signal, and measures whether or not an FEC operation of the device under test W is possible based on a comparison result of the received signal and the test signal includes an operation unit that sets one Codeword length and one FEC Symbol length of the FEC as a setting parameter to the signal received from the device under test W according to a communication standard of the device under test W, and a display unit that parallel-displays MSB data and LSB data of each piece of symbol string data obtained by receiving and converting the signal from the device under test W on a display screen.

Abstract: An error rate measuring apparatus includes an operation unit that sets one Codeword length and one FEC Symbol length of FEC according to a communication standard of a device under test, data division means for dividing symbol string data obtained by converting a signal received from the device under test into MSB data and LSB data, a data comparison unit that compares each of the divided MSB data and LSB data with error data to detect MSB errors and LSB errors of each one Codeword length, and detects FEC Symbol Errors of each of the MSB data and the LSB data at one FEC Symbol interval, and error counting means for counting the detected MSB errors and LSB errors, and counting the FEC Symbol Errors.

Abstract: A signal generator includes inverse characteristic calculation means for calculating an inverse characteristic of a transfer function from an inverse characteristic of a frequency characteristic of a signal based on the transmission standard, inverse Fourier transform means for calculating impulse responses of a plurality of points by performing inverse Fourier transform on the inverse characteristic of the transfer function, impulse response cutout means for cutting out the points for a predetermined number of taps from the impulse response, frequency characteristic calculation means for calculating a frequency characteristic based on values of the points for the number of taps cut out from the impulse response, and display control means for displaying on a display screen, the frequency characteristic calculated by the frequency characteristic calculation means and an ideal frequency characteristic read from an S parameter file of a device under test.

Abstract: A signal generator includes inverse characteristic calculation means for calculating an inverse characteristic of a transfer function from an inverse characteristic of a frequency characteristic of a signal based on the transmission standard, inverse Fourier transform means for calculating impulse responses of a plurality of points by performing inverse Fourier transform on the inverse characteristic of the transfer function, impulse response cutout means for cutting out the points for a predetermined number of taps from the impulse response, frequency characteristic calculation means for calculating a frequency characteristic based on values of the points for the number of taps cut out from the impulse response, and display control means for displaying on a display screen, the frequency characteristic calculated by the frequency characteristic calculation means and an ideal frequency characteristic read from an S parameter file of a device under test.

Abstract: An opening/closing apparatus is provided for use in a molding apparatus, such as an injection molding machine. The opening/closing apparatus may eliminate the influence of a slight gap formed between a bush and a pin in a link connecting portion of a toggle link mechanism and in addition, can enhance workability e.g., in mold replacement. An opening/closing apparatus of the present technology may include an opening/closing mechanism including a toggle link mechanism connecting a pressure-receiving platen and a movable platen; a drive mechanism for driving the opening/closing mechanism; and a core-back hydraulic cylinder for applying a load to the movable platen in a given direction in conjunction with the first drive mechanism, configured to perform the operation of slightly opening of the mold.

Abstract: A clamping device (14) comprises a pressure receiving platen (24), a stationary platen (20), a movable platen (22), a toggle mechanism (28), and a drive device (37). A first position detector (38a) detects the operation amount of the movable platen (22) based on the position of a crosshead (26); a pressure detector (35) detects the actual clamping force of a mold (19); and a second position detector (43) detects the actual position of the movable platen (22). A control portion (50) has first correction means correcting the operation amount of the movable platen (22) at the time of a minute mold opening operation based on the actual clamping force and on the set clamping force, and second correction means correcting the operation amount of the movable platen (22) at the time of the minute mold opening operation based on the operation amount of the movable platen (22) and on the position of the movable platen (22).

Abstract: There is provided an opening/closing apparatus which can eliminate the influence of a slight gap formed between a bush and a pin in a link connecting portion of a toggle link mechanism and, in addition, can enhance workability e.g mold replacement, An opening/closing apparatus according to an embodiment includes: a fixed platen 20 to which one mold 21 of a pair of molds is to be mounted; a movable platen 22 to which the other mold 23 is to be mounted; a pressure-receiving platen 24 connected to the fixed platen 20 via tie bars 36; an opening/closing mechanism for opening/closing the molds by moving the movable platen 22 back and forth, including a toggle link mechanism 28 connecting the pressure-receiving platen 24 and the movable platen 22; a first drive mechanism for driving the opening/closing mechanism; and a second drive mechanism 50 for applying a load to the movable platen 22 in a given direction in conjunction with the first drive mechanism.

Abstract: A maglev motor and a pump using the maglev motor can be provided with strong magnetic bearing force generated by a simple structure, rotation losses of a rotor reduced with the generation of an eddy current suppressed, and a configuration of magnetic bearing can downsize by using a thin rotor.

Abstract: A magnetic levitation motor including a stator having magnetic bearing units and a motor unit, and a rotor provided to the stator. And the occurrence of an eddy current at a magnetic bearing is suppressed and the rotation loss of the rotor can be reduced, and also to provide a pump using such the magnetic levitation motor.

Abstract: In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.

Abstract: A maglev motor and a pump using the maglev motor can be provided with strong magnetic bearing force generated by a simple structure, rotation losses of a rotor reduced with the generation of an eddy current suppressed, and a configuration of magnetic bearing can downsize by using a thin rotor.

Abstract: In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.

Abstract: In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.

Abstract: A magnetic levitation motor including a stator having magnetic bearing units and a motor unit, and a rotor provided to the stator. And the occurrence of an eddy current at a magnetic bearing is suppressed and the rotation loss of the rotor can be reduced, and also to provide a pump using such the magnetic levitation motor.

Abstract: In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.

Abstract: There is provided an injection molding machine provided with an injection mechanism that enables a high-speed injection.

Abstract: An injection molding machine using a linear motor, has a linear motor serving as a linear drive mechanism; a temperature sensor configured to detect a temperature of a coil of said linear motor or an ambient temperature thereof; an input unit configured to input a signal of the temperature detected by said temperature sensor; a data converting unit configured to convert the detected temperature signal into temperature data; a storage unit, including a temperature data setting unit configured to preset an allowable temperature, etc.

Abstract: A screw is incorporated in a heating barrel, and the tail end of the screw is rotatably supported by the front surface of an intermediate plate. Behind the intermediate plate, two linear motor units are connected in parallel and arranged around the shaft of the screw to form axial symmetry. The output shafts of the linear motor units are connected to the tail end of a driving shaft through a common connecting arm, and the leading end of the driving shaft is fixed to the rear surface of the intermediate plate. Each of the liner motor units is constituted by a plurality of voice coil linear motors connected in parallel. Each of the linear motor units can be independently controlled. Voice-coil linear motors to be used are selected according to the type of product to be manufactured.

Abstract: There is provided an injection molding machine provided with an injection mechanism that enables a high-speed injection.