Tokyo, Japan
Tokyo, Japan

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Patent
Azbil Corporation | Date: 2016-07-07

To provide a regulating valve of which stability of an operation is high, a regulating valve is disclosed that includes a valve box in which a first flow channel and a second flow channel are formed; a cage having a first throttle portion provided in a boundary between the first flow channel and the second flow channel; a plug head having a second throttle portion slidably inserted into an inside of the cage; and a guide ring slidably holding a plug guide holding the plug head. In a closed state of the regulating valve, a distance between a through-hole of the first throttle portion and an end portion of the plug head on the other end side is equal to a distance between a through-hole of the second throttle portion and an end portion of the cage on the opened one end side.


Patent
Azbil Corporation | Date: 2016-07-07

To provide a regulating valve whose stability of an operation is high,a regulating valve is disclosed that includes a valve box in which a first flow channel and a second flow channel are formed, a cage having a first throttle portion provided in a boundary between the first flow channel and the second flow channel, a plug head having a second throttle portion slidably inserted into an inside of the cage, and a guide ring slidably holding a plug guide holding the plug head. In a closed state of the regulating valve, a distance between a through-hole of the first throttle portion and an end portion of the plug head on the other end side is shorter than a distance between a through-hole of the second throttle portion and an end portion of the cage on the opened one end side.


Patent
Azbil Corporation | Date: 2016-07-21

An input circuit includes a rectifier circuit that rectifies an excitation current obtained from a converter, and a constant voltage circuit that receives output of the rectifier circuit and performs control so that a power supply voltage is maintained constant. A power supply voltage source switching unit switches the source of a power supply voltage used in a calibrator to the constant voltage circuit when the converter is a converter of a four-wire electromagnetic flowmeter, and switches the source of the power supply voltage to a battery when the converter is a converter of a two-wire electromagnetic flowmeter. A remaining capacity indicator provides a remaining battery capacity indication in accordance with the voltage of the battery. When the converter is a converter of a four-wire electromagnetic flowmeter and it is determined that the battery is not in a battery holder, the remaining capacity indicator stops providing a remaining battery capacity.


Patent
Azbil Corporation | Date: 2016-03-31

A power generating portion formed of a rotor and a stator is provided. The rotor is formed of a ring incorporating a permanent magnet and an impeller. The rotor is regarded as a turbine. An actual flow rate of fluid flowing in a flow path is estimated from a present angular velocity of the turbine and a present torque of the power generating portion, a torque of the power generating portion in which the estimated actual flow rate corresponds to a setting flow rate is calculated and the torque of the power generating portion is controlled based on the calculated torque and a magnetic pole position of the turbine. The magnetic pole position of the turbine is estimated based on a present phase voltage value and a present phase current value of the power generating portion and a present winding temperature of the power generating portion.


Patent
Azbil Corporation | Date: 2016-03-31

A power generating portion formed of a rotor and a stator is provided. The rotor is formed of a ring incorporating a permanent magnet and an impeller. The rotor is regarded as a turbine. An actual flow rate is estimated from a present angular velocity of the turbine and a present torque of the power generating portion, a torque of the power generating portion in which the estimated actual flow rate corresponds to a setting flow rate is calculated and the torque of the power generating portion is controlled based on the calculated torque and a magnetic pole position of the turbine. A measured value detected by a position sensor is used as the magnetic pole position of the turbine, however, when it is determined that reliability does not exist in the position sensor, an estimated value is used.


Patent
Azbil Corporation | Date: 2016-03-31

A table indicating a relationship between a differential pressure across a valve unit and a torque that is to be outputted by a motor (an output torque) is stored in a table storing portion. A valve opening controlling portion and a torque controlling portion are provided in a controlling portion. The valve opening controlling portion uses the actual opening pv, from the valve opening detector, as the valve opening measured value, and sends a driving command to the motor so as to cause the valve opening measured value pv to match the valve opening setpoint sp. The torque controlling portion acquires, from the table, a torque corresponding to the differential pressure P across the valve unit, detected by the differential pressure detecting portion, and sends, to the motor, a command (a torque output command) to cause outputting of the torque that has been acquired.


Patent
Azbil Corporation | Date: 2016-06-27

A photoelectric sensor includes the following components. A disturbance detection unit detects a disturbance by comparing a light reception result obtained by a light receiver with a first threshold and with a second threshold for a predetermined period in a state where no light is transmitted by a light transmitter. The second threshold takes a value of a sign opposite to that of the first threshold relative to a no-signal state. A waiting unit waits for the light reception result obtained by the light receiver to become within a range from the first threshold to the second threshold upon detection of a disturbance. A disturbance type determination unit causes detection of a disturbance to be performed again after the waiting. A light transmission instruction unit instructs the light transmitter to transmit light when no disturbance is detected for a predetermined period.


Patent
Azbil Corporation | Date: 2016-06-03

A plurality of coloring pattern screens in which a plurality of display objects are disposed in a background image, and which have coloring patterns where arbitrary colors are set to the background image and the plurality of display objects are stored. Frame lines are not provided in peripheries of the coloring pattern screens. A plurality of frame line added coloring pattern screens are generated, and the plurality of frame line added coloring pattern screens are displayed on a displaying portion in a case in which a mode is switched from a normal display mode in which an operation screen, where the plurality of display objects are disposed, is displayed in the displaying portion to perform a normal screen operation to a coloring pattern selection mode in which a user selects desired coloring pattern screens.


Patent
Azbil Corporation | Date: 2016-05-27

A schedule management system that includes processing circuitry that generates schedule information for managing operation of equipment, generates changed schedule information by changing the schedule information in response to a request for changing the schedule information, generates equipment operation time information representing an operation time of the equipment when the equipment operates in accordance with the schedule information or the changed schedule information, creates a presentation screen including information on a first difference between the schedule information and the changed schedule information and a second difference between the changed schedule information and the equipment operation time information, and controls a display to display the presentation screen.


Patent
Azbil Corporation | Date: 2016-05-04

[Problem] To realize a stable operation and the suppression of heat generation in the case where an excitation current supplied from a converter is used to generate a power source voltage. [Solution] An input circuit (30a) of a standard signal generator is provided with: a rectification circuit (D1 to D4) that rectifies an excitation current; a resistor (R1) that is provided between a power source voltage output terminal for supplying a power source voltage (VCC) and an output terminal of the rectification circuit; an amplification circuit (U2, R5 to R8) that outputs an output voltage (VAD) obtained by amplifying a voltage across both ends of the resistor (R1); and a constant voltage circuit (U1, Q1, R2 to R4, R16, C1) that performs control such that the power source voltage (VCC) is constant. A power source voltage switching means (U3, Q4, R17, R18) switches the power source voltage (VCC) with the constant voltage circuit being controlled in accordance with the result of a comparison between the output voltage (VAD) and a prescribed threshold value.

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