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公开(公告)号：US20200025589A1
公开(公告)日：2020-01-23
申请号：US16518399
申请日：2019-07-22
Applicant: Stabilus GmbH
Inventor： Thomas Ehre
IPC: G01D5/24
Abstract: The invention relates to a method for measuring the position of a piston-cylinder arrangement, said method comprising: providing the piston-cylinder arrangement, providing an electrical circuit unit, applying a DC voltage (Vcc) to the piston-cylinder arrangement, sensing a capacitance (C) of the piston-cylinder arrangement as an input variable for the electrical circuit unit, generating a pulsed DC voltage (Vcc) by means of the electrical circuit unit on the basis of the sensed capacitance (C) of the piston-cylinder arrangement, providing a measuring unit for measuring a frequency (F0, F1) of the pulsed DC voltage (Vcc) generated, determining a frequency difference (DF) between the frequency (F0) of the pulsed DC voltage (Vcc) before displacement of the piston within the cylinder and the frequency (F1) of the pulsed DC voltage (Vcc) after displacement of the piston within the cylinder, determining a displacement distance of the piston within the cylinder on the basis of the frequency difference (DF).
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公开(公告)号：US11118941B2
公开(公告)日：2021-09-14
申请号：US16518399
申请日：2019-07-22
Applicant: Stabilus GmbH
Inventor： Thomas Ehre
Abstract: The invention relates to a method for measuring the position of a piston-cylinder arrangement, said method comprising: providing the piston-cylinder arrangement, providing an electrical circuit unit, applying a DC voltage (Vcc) to the piston-cylinder arrangement, sensing a capacitance (C) of the piston-cylinder arrangement as an input variable for the electrical circuit unit, generating a pulsed DC voltage (Vcc) by means of the electrical circuit unit on the basis of the sensed capacitance (C) of the piston-cylinder arrangement, providing a measuring unit for measuring a frequency (F0, F1) of the pulsed DC voltage (Vcc) generated, determining a frequency difference (DF) between the frequency (F0) of the pulsed DC voltage (Vcc) before displacement of the piston within the cylinder and the frequency (F1) of the pulsed DC voltage (Vcc) after displacement of the piston within the cylinder, determining a displacement distance of the piston within the cylinder on the basis of the frequency difference (DF).
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公开(公告)号：US11543314B2
公开(公告)日：2023-01-03
申请号：US16547632
申请日：2019-08-22
Applicant: Stabilus GmbH
Inventor： Thomas Ehre , Raphael Piroth , Ulrich Probst , Lars Löhken , Markus Müller
Abstract: The invention relates to a method for monitoring operating parameters of an actuator (10), wherein the method comprises: providing the actuator (10), providing at least two detection units (26, 28, 30, 32, 34, 36) which are designed to detect different operating parameters of the actuator (10), detecting operating parameters of the actuator (10) via the detection units (26, 28, 30, 32, 34, 36), outputting data relating to the measured operating parameters to an evaluation unit, combining the measured operating parameters into a state information, which indicates whether or not the technical state of the actuator (10) is in a predetermined standard state.
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公开(公告)号：US20200064223A1
公开(公告)日：2020-02-27
申请号：US16547632
申请日：2019-08-22
Applicant: Stabilus GmbH
Inventor： Thomas Ehre , Raphael Piroth , Ulrich Probst , Lars Löhken , Markus Müller
Abstract: The invention relates to a method for monitoring operating parameters of an actuator (10), wherein the method comprises: providing the actuator (10), providing at least two detection units (26, 28, 30, 32, 34, 36) which are designed to detect different operating parameters of the actuator (10), detecting operating parameters of the actuator (10) via the detection units (26, 28, 30, 32, 34, 36), outputting data relating to the measured operating parameters to an evaluation unit, combining the measured operating parameters into a state information, which indicates whether or not the technical state of the actuator (10) is in a predetermined standard state.
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