Monitoring apparatus for monitoring a condition of an aqueous metalworking fluid comprised of water and a lubricant, of a metalworking fluid circuit of a metalworking machine, wherein the at least one measurement element of the apparatus is remote from the metalworking fluid circuit. Method for determining a condition of a metalworking fluid, and, when required, to add water and/or lubricant to the metalworking fluid circuit.

A coolant state estimation system that estimates a temporal change of a state of a coolant used in a processing machine includes a coolant state acquisition unit that acquires a measurement value regarding the state of the coolant as measurement information in which the measurement value is associated with measurement time of the measurement value, a processing information acquisition unit that acquires processing information on a processing condition of the processing machine, and an estimation unit that estimates a temporal change of the measurement value after the measurement time of the measurement information using a learned model based on the measurement information and the processing information. The learned model is a model that has learned the temporal change of the measurement value using teacher data created from the measurement information and the processing information.

Systems and methods for measuring air within a fluid and for mitigating damage to a metalworking tool are disclosed. A system for measuring air within a fluid includes a fluid path having a first end and a second end; a first valve having an open position and a closed position, wherein fluid can pass through the first valve in the open position and fluid is prevented from passing through the first valve in the closed position; a first sensor located between the first valve and the second end; and a second sensor located between the first sensor and the second end, wherein the second end is higher than the first end.

A wear-indicating metalworking fluid is provided that includes a lubricant base; and a wear-indicating agent. A method of determining wear in a metalworking fluid includes providing wear-indicating metalworking fluid that contains a lubricant base and a wear indicating agent; and observing the visual appearance of the metalworking fluid. A change in visual appearance of the metalworking fluid when compared to an unused metalworking fluid indicates wear of the metalworking fluid.

Methods for detecting an amount of a rust removing agent in a sample are disclosed, the methods using a colored reagent complex formed from a reaction of a transition metal salt and a salicylate salt or acid, or a derivative thereof. A method includes making a test sample solution comprising the sample and the colored reagent complex, evaluating the visible color and/or absorption value of the test sample solution, and comparing the visible color and/or absorption value of the test sample solution to the visible color and/or absorption value of a reference solution containing a known amount of rust removing agent.

Systems and methods for measuring air withing a fluid and for mitigating damage to a metalworking tool are disclosed. A system for measuring air within a fluid includes a fluid path having a first end and a second end; a first valve having an open position and a closed position, wherein fluid can pass through the first valve in the open position and fluid is prevented from passing through the first valve in the closed position; a first sensor located between the first valve and the second end; and a second sensor located between the first sensor and the second end, wherein the second end is higher than the first end.

Apparatuses are disclosed including an apparatus for machine fluid monitoring or sampling comprising a transparent sight glass attachable to a machine such that machine fluid is transferable to the sight glass. The sight glass is at least partially constructed of one or more materials that is transparent to light in a visible region. The sight glass has an open first end, a closed second end, an inside surface and an outside surface extending from the open first end to the closed second end and across the closed second end, the sight glass at least partially surrounds a cavity within the sight glass, the inside surface and the outside surface of the closed second end being parallel. The closed second end is constructed of the one or more materials that are transparent to light in the visible region to allow inspection of machine fluid through the closed second end.

A method and a device for obtaining and measuring at least one physical property of a sample of grease obtained from a reservoir of grease includes attaching the barrel of a syringe to a first linear actuator and the piston of the syringe to a second linear actuator. The actuators are controllable to move the syringe as a unit along a path. The actuators are also controllable to move the piston relative to the barrel for drawing a grease sample into the syringe or expelling the grease sample from the syringe. The actuators move the syringe to one or more measuring positions along the path to measure one or more physical properties of the grease in the syringe.

Disclosed herein are systems and methods configured for real-time multi-parameter monitoring of fluid systems associated with metal-working equipment. The disclosed fluid monitoring systems are configured to acquire in real time multiple parameters associated with the well-being of fluid systems of metal-working equipment. The data acquired in real-time can also be provided to remote devices to allow off-site personnel to monitor metal-working equipment. The fluid monitoring systems can also include fluorescence probes configured to determine fluid concentration and/or soil load values using fluorescence. The fluorescence probes can provide excitation light and detect emission light forming a small angle with respect to one another, emission light coming from a surface of the metal-working fluid.

Monitoring apparatus for monitoring a condition of an aqueous metalworking fluid comprised of water and a lubricant, of a metalworking fluid circuit of a metalworking machine, wherein the at least one measurement element of the apparatus is remote from the metalworking fluid circuit. Method for determining a condition of a metalworking fluid, and, when required, to add water and/or lubricant to the metalworking fluid circuit.