The invention relates to a method and a drivetrain test bench for detecting an imbalance and/or a misalignment of at least one shaft assembly of a drivetrain during operation on a test bench, wherein a first piezoelectric force sensor is arranged in a flow of force generated by a transmission of power between a load unit of the test bench and a drive unit of the drivetrain or the test bench, and which is transmitted by means of the shaft assembly, wherein the first force sensor realizes a first force measurement in a first plane and/or perpendicular to the first plane as is intersected by a rotational axis of the shaft assembly and preferably at least substantially perpendicular to the rotational axis, and wherein at least one measured value progression of the first force measurement and a value progression associated with the measured value progression of a rotational angle determination for the shaft assembly are analyzed in order to detect an imbalance, and/or the measured value progression of the first force measurement is analyzed in order to detect a misalignment of the shaft assembly.

Provided is a substrate cleaning device, an abnormality determination method of a substrate cleaning device, and an abnormality determination program of a substrate cleaning device for determining whether there is an abnormality in a roll cleaning member that is attached. A substrate cleaning device includes: a holder to which a roll cleaning member for cleaning a substrate is attached in a detachable manner; a rotation device which makes the roll cleaning member attached to the holder rotate; a sensor which measures information concerning a vibration of the roll cleaning member during rotation; and a control device which determines, based on a measurement result of the sensor, whether there is an abnormality in the roll cleaning member attached to the holder.

Provided is a substrate cleaning device, an abnormality determination method of a substrate cleaning device, and an abnormality determination program of a substrate cleaning device for determining whether there is an abnormality in a roll cleaning member that is attached. A substrate cleaning device includes: a holder to which a roll cleaning member for cleaning a substrate is attached in a detachable manner; a rotation device which makes the roll cleaning member attached to the holder rotate; a sensor which measures information concerning a vibration of the roll cleaning member during rotation; and a control device which determines, based on a measurement result of the sensor, whether there is an abnormality in the roll cleaning member attached to the holder.

A balancing device is provided, including acquisition device adapted to detect vibratory stresses generated by the rotating body during rotation, in which the acquisition device are configured to allow the detection of vibratory stresses along at least two mutually non intersecting acquisition directions.

A balancing device is provided, including acquisition device adapted to detect vibratory stresses generated by the rotating body during rotation, in which the acquisition device are configured to allow the detection of vibratory stresses along at least two mutually non intersecting acquisition directions.

A system for monitoring the operation of vibrating equipment, such as a vibrating screen unit or vibrating feeder. The vibrating equipment includes a series of mounting springs that support the body on a stationary support structure. The system includes a plurality of sensors that are positioned to detect vibrating forces on one or more of the mounting springs. Each of the sensors generates a monitoring signal that is received by a control unit. The monitoring signals are a measure of the resonance frequency of the mounting springs. The control unit is operable to compare the monitoring signals from the sensors to expected, normal values such that the control unit is able to determine whether the mounting springs are functioning in a normal manner or whether a problem exists. The control unit is further able to monitor the operation of the vibrating equipment through the analysis of the monitoring signals.

A system for monitoring the operation of vibrating equipment, such as a vibrating screen unit or vibrating feeder. The vibrating equipment includes a series of mounting springs that support the body on a stationary support structure. The system includes a plurality of sensors that are positioned to detect vibrating forces on one or more of the mounting springs. Each of the sensors generates a monitoring signal that is received by a control unit. The monitoring signals are a measure of the resonance frequency of the mounting springs. The control unit is operable to compare the monitoring signals from the sensors to expected, normal values such that the control unit is able to determine whether the mounting springs are functioning in a normal manner or whether a problem exists. The control unit is further able to monitor the operation of the vibrating equipment through the analysis of the monitoring signals.

Provided is a balancing device for a rotating body including at least one unbalance detector to measure the unbalance of the rotating body; two balancing masses to be handled along a handling circumference so as to cancel the unbalance; a position sensor to detect the mutual position of the balancing masses; and a motor to independently handle each of the balancing masses as a function of their mutual position and unbalance.

Provided is a balancing device for a rotating body including at least one unbalance detector to measure the unbalance of the rotating body; two balancing masses to be handled along a handling circumference so as to cancel the unbalance; a position sensor to detect the mutual position of the balancing masses; and a motor to independently handle each of the balancing masses as a function of their mutual position and unbalance.

A vibration detection device for detecting vibration of a cartridge including a bearing housing that accommodates a rotor coupling a wheel and a rotor shaft, and a bearing rotatably supporting the rotor, the bearing housing including a lubricant-oil passage port for allowing lubricant oil to pass through an interior of the bearing housing, includes: a sensor mount attached to an oil-flow-passage forming member configured to be capable of connecting to and separating from the bearing housing, the oil-flow-passage forming member including, inside thereof, an oil flow passage through which one of lubricant oil to be supplied to the interior of the bearing housing via the lubricant-oil passage port or lubricant oil discharged from the interior of the bearing housing via the lubricant-oil passage port flows; a vibration sensor disposed on the sensor mount; and a vibration transmission leg portion connected to the sensor mount and configured to be in contact with the bearing housing in a state where the oil-flow-passage forming member is connected to the bearing housing.