Abstract: An optical observation instrument according to the invention, in particular a surgical microscope or exoscope, comprises an optics unit with an objective arrangement and at least one electronic image recorder, wherein the optics unit has a first stereo channel with a first beam path and a second stereo channel with a second beam path for recording a stereo image of an object field with the at least one electronic image recorder and wherein the first and the second beam path extend through the objective arrangement.

Abstract: A vehicle transmission includes a hydraulic circuit and a control unit. The control unit is configured to: obtain (20) a target pressure specification; convert (26) the target pressure specification into a target volume flow rate; determine (42) a valve volume flow rate as a function of the target volume flow rate and as a function of parameters that represent system properties of the hydraulic circuit; determine (46) a pressure drop at a valve due to flow forces as a function of the valve volume flow rate; determine (48) a compensated valve output pressure as a function of the valve volume flow rate and the pressure drop; determine (58) the electric control current as a function of the compensated valve output pressure; and activate a valve with the electric control current.

Abstract: A conveyor system (10) for transporting a transportable material (M) by means of a fluid for transporting the transportable material (M) between a first conveying line portion (11) and a second conveying line portion (12), said conveying line portions (11, 12) comprising a plurality of pipes forming a continuous conveying line (13), said system (10) comprising: a conveyor device (1) in fluid connection to one of said first or said conveying line portions (11, 12) operative to provide negative air pressure or vacuum through said conveying line (13); a material feeder device (2); wherein the conveyor device (1) comprises at least one material level sensor (1a, 1b), wherein the at least one material level sensor (1a, 1b) is used to monitor one or more material level(s) inside the conveyor device (1) and via one or more material level sensor lines (3) giving at least one material level signal (1aa, 1bb) to a controller (4) and from the controller (4) via a control signal line (5) transmit a control signal (5a)

Abstract: A conveyor system (10) for transporting a transportable material (M) by means of a fluid for transporting the transportable material (M) between a first conveying line portion (11) and a second conveying line portion (12), said conveying line portions (11, 12) comprising a plurality of pipes forming a continuous conveying line (13), said conveyor system (10) comprising: a conveyor device (1) in fluid connection to one of said first or said second conveying line portions (11, 12) operative to provide negative air pressure or vacuum through said conveying line (13); a material feeder device (2); wherein the conveyor device (1) comprises at least one system pressure sensor (1a), wherein the at least one system pressure sensor (1a) is arranged to monitor one or more system pressure level(s) inside the conveyor device (1) and via a sensor communication line (3) give at least one material level signal (1aa) to a controller (4) and from the controller (4) via a first control signal line (5) transmit a control

Abstract: A conveyor system (10) for transporting a transportable material (M) by means of a fluid for transporting the transportable material (M) between a first conveying line portion (11) and a second conveying line portion (12), said conveying line portions (11, 12) comprising a plurality of pipes forming a continuous conveying line (13), said system (10) comprising: a conveyor device (1) in fluid connection to one of said first or said conveying line portions (11, 12) operative to provide negative air pressure or vacuum through said conveying line (13); a material feeder device (2); wherein the conveyor device (1) comprises at least one material level sensor (1a, 1b), wherein the at least one material level sensor (1a, 1b) is used to monitor one or more material level(s) inside the conveyor device (1) and via one or more material level sensor lines (3) giving at least one material level signal (1aa, 1bb) to a controller (4) and from the controller (4) via a control signal line (5) transmit a control signal (5a)