摘要:
A method and apparatus used to compensate for thermal displacement and to correct a positional error caused by the thermally induced displacement of a spindle positioned in response to a numerical control system. The amount of thermally induced displacement of the spindle, at a predetermined point in time after application of electric power to the machine tool, is stored in a memory. When the spindle is to be positioned in response to numerical control data, the commanded amount of spindle movement is compensated by using the amount of thermally induced displacement stored in the memory, and the spindle is then positioned on the basis of the compensated commanded amount of movement.
摘要:
When the interior temperature inside a line accommodating apparatus (100) measured by an apparatus-interior temperature sensor (103) is equal to or higher than a predetermined first threshold value, a control unit (105) shuts off the supply of power from a power supply unit (102) to a line module (101-1, 101-2) having a module temperature, measured by a module temperature sensor (104), higher than the sum of a predetermined second threshold value and the interior temperature.
摘要:
A remote control system for a car-mounted device capable of realizing communication performance required for a keyless function and communication performance required for a smart function while suppressing increase in circuit scale. The remote control system includes a portable unit and an in-car unit. The portable unit includes: a function judgment mechanism judging whether the keyless function or the smart function is used; an amplification mechanism controlling transmission power in response to a result of judgment obtained at the function judgment mechanism; and a system clock generator controlling a transmission band in response to a result of judgment obtained at the function judgment part. The in-car unit includes: an in-car function judgment mechanism judging whether the keyless function or the smart function is used; and in-car system clock generator controlling a receiving band in response to a result of judgment obtained at the in-car function judgment mechanism.
摘要:
A food material capable of suppressing the ingestion of saccharide (starches) as far as possible to prevent an obesity, diabetes and hyperlipidemia is provided as well as a food product employing the same. The food material contains as main ingredients at least one of a roasted wheat husk powder, roasted oat husk powder and roasted rice bran, gluten and a predetermined amount of a plantain seed skin powder and contains substantially no saccharides (starches). A food product employing this food material is produced by adding milk and yeast to the food material, fermenting the mixture and then baking the mixture in the form of a bread and cookie. The present invention enables an efficacious utilization of a wheat bran and a rice bran which are problematic food material industrial waste.
摘要:
An elevator control apparatus includes a converter; an inverter; a controller for controlling a motor based on the AC power having a variable voltage and a variable frequency supplied from the inverter and operating an elevator; a power storage unit for storing the DC power; a thermistor for detecting temperature of the power storage unit; a charge/discharge control circuit for controlling a charging and discharging of the power storage unit based on the detected temperature and issuing a drive signal; and a charge/discharge circuit for charging and discharging the power storage unit based on the drive signal. The elevator control apparatus estimates a charging and discharging capability of the power storage unit and protecting the power storage unit, restraining sudden deterioration of the power storage unit.
摘要:
An elevator controller for stably controlling charging and discharging of a power accumulating device by using a cheap secondary battery having a low capacity, without damaging energy saving effects obtained by charging. The controller of the elevator includes a converter for rectifying AC power and converting the AC power to DC power; an inverter for converting the DC power to AC power having a variable voltage and a variable frequency to operate the elevator; a power accumulating device for accumulating DC power from a DC bus in a regenerative operation and supplying the DC power in a power operation; a charging-discharging control circuit for controlling charging and discharging operations of the power accumulating device; a series connecting body, arranged between DC buses, and a gate for regenerative current control and a regenerative resistor; a regenerative control circuit for controlling operation of the gate for regenerative current control; and a charging discharging state measuring device measuring charging and discharging state of the power accumulating device.
摘要:
A controller of an elevator in which space for mounting a power accumulating device can be saved and the controller can be applied to an elevator having no machine room. The controller has a power accumulating device arranged between DC buses connected to a converter and an inverter, and accumulating DC power from the DC buses during a regenerative operation of the elevator and supplying the DC power accumulated to the DC buses during a power operation; and a charging-discharging control for controlling charging and discharging of the power accumulating device with respect to the DC buses. The power accumulating device includes a secondary battery and a DC—DC converter for controlling charging and discharging of the secondary battery, and the secondary battery includes plural cells connected in series. The secondary battery is arranged at any one of four corners within an elevator shaft, near a rail, or near a cable within the elevator shaft.
摘要:
In the control method for a PWM converter according to the present invention, an upper limit value of an inphase component of an instruction voltage for controlling an AC/DC converter is prescribed, and in the region where the upper limit value is exceeded, the inphase component of the instruction voltage is controlled to be within the prescribed upper limit value by setting a reactive component value corresponding to the exceeding quantity. This makes it possible to offer a low priced, stable control method for a PWM converter.
摘要:
In a tool exchange system, in which the selection of a tool (8) supported on a magazine (9) is done by the rotation of a main spindle (5) via a pair of gears (20) and (21), an elastic member (71) is provided so as to retain the magazine (9) in a machining position (pause position) which does not interfere with a machining operation. A first cam mechanism (11) is adapted to move the magazine (9) between a tool exchange position and the machining position in response to the vertical move of a Z-slider (3) moving along a column (1). A second cam mechanism (12) is adapted to operate a tool attachment/removal means (6).
摘要:
An interface signal produces in a phase modulation type fiber optic gyroscope is classified into odd and even groups at a synchronous detector. An angular velocity is processed by the signals of even groups and odd groups.