To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control device 6 is provided with an excitation signal generating unit 61 for generating a randomly or periodically fluctuating excitation signal, a speed controller 62 for generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensator 64 for generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adder 65 for generating a torque electric current command signal by adding the input signals generated by the speed controller 62 and the shaft torque compensator 64 to the excitation signal.

To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control device 6 is provided with an excitation signal generating unit 61 for generating a randomly or periodically fluctuating excitation signal, a speed controller 62 for generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensator 64 for generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adder 65 for generating a torque electric current command signal by adding the input signals generated by the speed controller 62 and the shaft torque compensator 64 to the excitation signal.

This invention relates to devices used to measure the mass moment of inertia (MOI) of physical objects. Embodiments of this invention provide a compact device that is easy to use and adjustable to broaden the range of physical object sizes/MOIs that would not otherwise be measurable with a single nonadjustable device. The device protects certain components from being disturbed or damaged by the user by means of permanent attachment or affixment to the device, while still allowing the adjustability noted. While some parts, such as one or more auxiliary platters, must be fully attached and detached for the purpose of adjustment, other components of this specific invention remain permanently attached to the device to avoid loss or damage while still allowing them to be engaged/connected or disengage/disconnected for adjustment purposes.

This invention relates to devices used to measure the mass moment of inertia (MOI) of physical objects. Embodiments of this invention provide a compact device that is easy to use and adjustable to broaden the range of physical object sizes/MOIs that would not otherwise be measurable with a single nonadjustable device. The device protects certain components from being disturbed or damaged by the user by means of permanent attachment or affixment to the device, while still allowing the adjustability noted. While some parts, such as one or more auxiliary platters, must be fully attached and detached for the purpose of adjustment, other components of this specific invention remain permanently attached to the device to avoid loss or damage while still allowing them to be engaged/connected or disengage/disconnected for adjustment purposes.

The present invention provides a large-scale high-speed rotary equipment measuring and intelligent learning assembly method and device based on vector minimization geometry center, mass center, the center of gravity and the center of inertia, belonging to the technical field of mechanical assembly. The method includes the steps of establishing a four-parameter circular profile measuring model for a single stage of rotor, simplifying the established four-parameter circular profile measuring model for the single stage of rotor, and establishing a four-target optimization model of the geometry center, mass center, the center of gravity and the center of inertia of multiple stages of rotors based on the angular orientation mounting position of each stage of rotor. The device include a base, an air flotation shaft system, an aligning and tilt regulating workbench, precise force sensors, a static balance measuring platform, an upright column, a lower transverse measuring rod, a lower telescopic inductive sensor, an upper transverse measuring rod and an upper lever type inductive sensor.

The present invention provides a large-scale high-speed rotary equipment measuring and intelligent learning assembly method and device based on vector minimization geometry center, mass center, the center of gravity and the center of inertia, belonging to the technical field of mechanical assembly. The method includes the steps of establishing a four-parameter circular profile measuring model for a single stage of rotor, simplifying the established four-parameter circular profile measuring model for the single stage of rotor, and establishing a four-target optimization model of the geometry center, mass center, the center of gravity and the center of inertia of multiple stages of rotors based on the angular orientation mounting position of each stage of rotor. The device include a base, an air flotation shaft system, an aligning and tilt regulating workbench, precise force sensors, a static balance measuring platform, an upright column, a lower transverse measuring rod, a lower telescopic inductive sensor, an upper transverse measuring rod and an upper lever type inductive sensor.

A removable electronics device and related pre-fabricated sensor assemblies having different sensor layouts are provided. The removable electronics module includes one or more processors, an inertial measurement unit, a first communication interface configured to communicatively couple the removable electronics device to one or more computing devices, a second communication interface configured to communicatively couple the removable electronics device to a plurality of pre-fabricated sensor assemblies, and a housing at least partially enclosing the processor, the inertial measurement unit, the first communication interface, and the second communication interface. The housing includes a first opening in at least one longitudinal surface and adjacent to at least a portion of the first communication interface and a plurality of second openings in a lower surface and adjacent to the plurality of contact pads of the second communication interface.

A removable electronics device and related pre-fabricated sensor assemblies having different sensor layouts are provided. The removable electronics module includes one or more processors, an inertial measurement unit, a first communication interface configured to communicatively couple the removable electronics device to one or more computing devices, a second communication interface configured to communicatively couple the removable electronics device to a plurality of pre-fabricated sensor assemblies, and a housing at least partially enclosing the processor, the inertial measurement unit, the first communication interface, and the second communication interface. The housing includes a first opening in at least one longitudinal surface and adjacent to at least a portion of the first communication interface and a plurality of second openings in a lower surface and adjacent to the plurality of contact pads of the second communication interface.

A removable electronics device and related pre-fabricated sensor assemblies having different sensor layouts are provided. The removable electronics module includes one or more processors, an inertial measurement unit, a first communication interface configured to communicatively couple the removable electronics device to one or more computing devices, a second communication interface configured to communicatively couple the removable electronics device to a plurality of pre-fabricated sensor assemblies, and a housing at least partially enclosing the processor, the inertial measurement unit, the first communication interface, and the second communication interface. The housing includes a first opening in at least one longitudinal surface and adjacent to at least a portion of the first communication interface and a plurality of second openings in a lower surface and adjacent to the plurality of contact pads of the second communication interface.

A testing system configured to determine at least one physical characteristic of a work piece. The testing system includes an effector frame having an effector interface configured for coupling with a manipulator assembly. The effector frame includes at least one torque sensor. A ballast bracket is configured for coupling between the at least one torque sensor and the work piece. The ballast bracket includes a sensor interface coupled with the at least one torque sensor, and at least one work piece latch configured for coupling with the work piece. A movable ballast assembly is coupled with the ballast bracket, and includes a counter ballast movably coupled with the ballast bracket and movable relative to the at least one torque sensor. A ballast actuator coupled with the counter ballast is configured to move the counter ballast relative to the at least one torque sensor.