Abstract: Provided is an ultrasonic flow sensor with improved practicality. An ultrasonic wave is transmitted and received by an ultrasonic element. A first flow rate value of a fluid in a pipe is calculated based on a propagation time difference of an ultrasonic signal, a measurement value corresponding to an ultrasonic velocity, and a parameter for identifying an inner diameter of the pipe. A second flow rate value of the fluid in the pipe is calculated based on a frequency shift of the ultrasonic signal and the parameter. The first flow rate value is calculated using a propagation time of the ultrasonic signal as the measurement value in accordance with a correspondence relationship among a distance of a path through which the ultrasonic wave propagates through the fluid in the pipe, a time for which the ultrasonic signal propagates in the path, and the ultrasonic velocity.

Abstract: A current sensor includes a battery terminal portion that is conductive and is fastened to a battery post; a shunt resistor for current detection, which is formed in a plate shape and is electrically connected to the battery terminal portion; and a circuit board that is formed in a plate shape and is electrically connected to the shunt resistor, in which the shunt resistor is erected on a main surface of the circuit board. With this configuration, since the shunt resistor and the circuit board can be arranged so as not to face each other and not confront each other, the influence of heat generated by the shunt resistor can be suppressed.

Abstract: The current sensor includes a battery terminal part that has electrical conductivity and is fastened to a battery post constituting a negative electrode of a battery, and a shunt resistor that is conductively connected to the battery terminal part via a joint part, the shunt resistor including a first detection terminal and a second detection terminal for detecting an electric current. The battery terminal part includes a third detection terminal for detecting a voltage of the battery between the joint part and the battery post. As a result, the current sensor can properly detect a voltage of the battery together with an electric current.

Abstract: A current sensor includes a battery terminal portion that is conductive and is fastened to a battery post that extends along a first direction; a sensor unit that is located side by side with the battery terminal portion along a second direction that intersects the first direction and is electrically connected to the battery terminal portion to detect a current; and a housing that has an insulating property and embeds the sensor unit, in which the battery terminal portion includes a pair of plate-shaped portions, and the pair of plate-shaped portions are embedded in the housing with end portions on the sensor unit side in the second direction spaced apart from each other along the first direction.

Abstract: Provided is a sensor including a first bus bar, a second bus bar, and a shunt resistor including a shunt resistor body part whose one end portion is bonded to the first bus bar and the other end portion is bonded to the second bus bar and a detection terminal extending from the shunt resistor body part.

Abstract: A current sensor includes a pair of bus bars, a shunt resistor conductively connected between the pair of bus bars, and a housing in which the shunt resistor is built. The shunt resistor includes a body part interposed between the pair of bus bars and detection terminal parts for current detection. Each of the detection terminal parts includes a body connection portion that is connected to the body part, a tip end connection portion that is exposed from the housing and extends along a first direction, and an intermediate portion that is interposed between the body connection portion and the tip end connection portion and extends by protruding from the tip end connection portion along a second direction.

Abstract: The current sensor includes a battery terminal part that has electrical conductivity and is fastened to a battery post constituting a negative electrode of a battery, and a shunt resistor that is conductively connected to the battery terminal part via a joint part, the shunt resistor including a first detection terminal and a second detection terminal for detecting an electric current. The battery terminal part includes a third detection terminal for detecting a voltage of the battery between the joint part and the battery post. As a result, the current sensor can properly detect a voltage of the battery together with an electric current.

Abstract: A current sensor includes a battery terminal portion that is conductive and is fastened to a battery post; a shunt resistor for current detection, which is formed in a plate shape and is electrically connected to the battery terminal portion; and a circuit board that is formed in a plate shape and is electrically connected to the shunt resistor, in which the shunt resistor is erected on a main surface of the circuit board. With this configuration, since the shunt resistor and the circuit board can be arranged so as not to face each other and not confront each other, the influence of heat generated by the shunt resistor can be suppressed.

Abstract: A current sensor includes a battery terminal portion that is conductive and is fastened to a battery post that extends along a first direction; a sensor unit that is located side by side with the battery terminal portion along a second direction that intersects the first direction and is electrically connected to the battery terminal portion to detect a current; and a housing that has an insulating property and embeds the sensor unit, in which the battery terminal portion includes a pair of plate-shaped portions, and the pair of plate-shaped portions are embedded in the housing with end portions on the sensor unit side in the second direction spaced apart from each other along the first direction.

Abstract: A reinforcement object is reinforced without being carried out from a wind turbine power generation facility. A method of remodeling a wind turbine power generation facility includes: a carry-in step of carrying a reinforcement member into a hub through an opening portion which has a smaller dimension than a reinforcement object inside the wind turbine power generation facility and which brings into communication inside of the hub and outside of a front side of the wind turbine power generation facility, the reinforcement member having a smaller dimension than the opening portion; and a reinforcement step of processing the reinforcement object inside the hub, and reinforcing the reinforcement object by using the reinforcement member carried into the hub.

Abstract: Provided is a sensor including a first bus bar, a second bus bar, and a shunt resistor including a shunt resistor body part whose one end portion is bonded to the first bus bar and the other end portion is bonded to the second bus bar and a detection terminal extending from the shunt resistor body part.

Abstract: To improve installation work on piping for a clamp-on type ultrasonic flowmeter including a damping member. A damping member is provided in a state of being in contact with piping, and the damping member is a sheet-shaped molded article which has moderate flexibility and a predetermined thickness. In addition, the damping member has viscoelasticity and has adhesion and peelability to the metal piping. The damping member is fixed to the piping by a damping fixture surrounding an outer periphery of the damping member, and the damping member is pressed against the piping by the damping fixture. A flow sensor body is fixed on the damping member.

Abstract: To provide a clamp-on type ultrasonic flow sensor capable of preventing deterioration in measurement accuracy of a flow rate due to deformation of a pipe. Elastic couplants CP1 and CP2 formed to surround the outer circumferential surface of a pipe are fixed while being pressed on the pipe P by fixing inner surfaces FS of two clamp members 131 and 132. An ultrasonic wave is propagated through the elastic couplants CP1 and CP2 and fluid in the pipe between a first ultrasonic element 101 and a second ultrasonic element 102. A cross section of the fixing inner surfaces FS of the clamp members 131 and 132 has a shape of a regular even-numbered polygonal shape centering on the axis of the pipe.

Abstract: A current sensor includes a main current path in which a main current flows, an auxiliary current path in which an auxiliary current flows, a magnetic detection element detecting intensity of a magnetic field in a magnetic detection direction and disposed around a detection target portion which is a part of the auxiliary current path, and a magnetic shield member disposed to surround the detection target portion and the magnetic detection element. The current sensor is configured to measure a magnitude of the auxiliary current flowing through the detection target portion based on the intensity of the magnetic field detected by the magnetic detection element. The auxiliary current path branches from the main current path and has a smaller cross-sectional area than that of the main current path.

Abstract: To improve installation work on piping for a clamp-on type ultrasonic flowmeter including a damping member. A damping member is provided in a state of being in contact with piping, and the damping member is a sheet-shaped molded article which has moderate flexibility and a predetermined thickness. In addition, the damping member has viscoelasticity and has adhesion and peelability to the metal piping. The damping member is fixed to the piping by a damping fixture surrounding an outer periphery of the damping member, and the damping member is pressed against the piping by the damping fixture. A flow sensor body is fixed on the damping member.

Abstract: A current sensor includes a housing with a bus bar. The housing with a bus bar includes a housing formed of an insulating resin material and a first bus bar and a second bus bar that are inserted into the housing. A recess portion is formed in the housing. A first exposed portion of the first bus bar and a second exposed portion of the second bus bar are exposed in the recess portion. A shunt resistor electrically connects the first exposed portion and the second exposed portion to each other in a state where the shunt resistor is accommodated in the recess portion.

Abstract: A reinforcement object is reinforced without being carried out from a wind turbine power generation facility. A method of remodeling a wind turbine power generation facility includes: a carry-in step of carrying a reinforcement member into a hub through an opening portion which has a smaller dimension than a reinforcement object inside the wind turbine power generation facility and which brings into communication inside of the hub and outside of a front side of the wind turbine power generation facility, the reinforcement member having a smaller dimension than the opening portion; and a reinforcement step of processing the reinforcement object inside the hub, and reinforcing the reinforcement object by using the reinforcement member carried into the hub.

Abstract: To provide a clamp-on type ultrasonic flow sensor capable of preventing deterioration in measurement accuracy of a flow rate due to deformation of a pipe. Elastic couplants CP1 and CP2 formed to surround the outer circumferential surface of a pipe are fixed while being pressed on the pipe P by fixing inner surfaces FS of two clamp members 131 and 132. An ultrasonic wave is propagated through the elastic couplants CP1 and CP2 and fluid in the pipe between a first ultrasonic element 101 and a second ultrasonic element 102. A cross section of the fixing inner surfaces FS of the clamp members 131 and 132 has a shape of a regular even-numbered polygonal shape centering on the axis of the pipe.

Abstract: A liquid surface level sensor includes a housing, a float located on a liquid surface, a magnet that rotates in accordance with up-and-down movement of the float, an arm joined with the float and the magnet, and a circuit unit. The circuit unit includes a sensing element that detects rotation of the magnet, and a wireless communication circuit that outputs a liquid surface level detected by the sensing element to a device installed in a vehicle. The circuit unit includes generating element that generate electric power from a change in magnetic flux caused by the rotation of the magnet, and a generation circuit that supplies electric power generated by the generating element to the sensing element and the wireless communication circuit as drive electric power. The circuit unit is included inside the housing in a state isolated from the outside.

Abstract: An input device includes an electrostatic sensor having a plurality of detection units, and an operation body having a contact operation surface. The contact operation surface is an assembly of a plurality of contact points that all the contact points are arranged with a distance from the detection surface in a direction perpendicular to the detection surface, and the contact operation surface is divided into at least two regions where the distance between the detection surface and the contact point becomes nonuniform. The detection unit includes one first electrode unit and one second electrode unit. In the electrostatic sensor, an overlapping area of the first electrode unit and the second electrode unit decreases as the detection unit is disposed in such a way that a distance with the contact point on the detection surface becomes narrower.