Abstract: Disclosed embodiments include a system and method of acquiring operating parameter data of a motor system that includes an electric motor. The motor system may be provided as a component of a fan. An embodiment includes recording states of operating parameters during operation of the motor system, wherein the operating parameters include a basic parameter and at least one additional parameter; determining a state-change event of the basic parameter based on a recorded state of the basic parameter; recording a state of the additional parameter upon detection of the state-change event of the basic parameter; linking the recorded state of the additional parameter to the detected state-change event; and storing the recorded state of the additional parameter linked to the detected state-change event.

Abstract: A fan is described, with the aid of which a volume flow and/or a mass flow of a medium moved by the fan (1) can be determined. This fan comprises an electric motor (2) and an impeller (3) driven by the electric motor (2), wherein the impeller (3) moves a gaseous medium in a media flow from an inflow side (5) to an outflow side (7). The fan additionally comprises a pressure sensor system, a speed ascertainment system, and an evaluation unit. The pressure sensor system is designed to ascertain an actual pressure difference (?p*) between a first region (10) and a second region (13), wherein the first region (10) and/or the second region (13) is/are formed in the electric motor (2), wherein a pressure (pA) prevails in the first region (10), which corresponds to a pressure (p1) present on the inflow side, wherein a pressure (pB) prevails in the second region (13), which corresponds to a pressure (p2) present on the outflow side.

Abstract: A method is used to identify impending or previously occurring condensation on/in electric motors, in particular on/in electric motors as a component of fans or fan groups. It includes the following method steps: Determining component temperatures, preferably surface temperatures on the electronics, on/in the motor, on/in the fan, or on/in fan groups; Determining the dew point temperature or individual dew point temperatures on the electronics, in/on the motor, fan, or on/in fan groups; Comparing the respective component temperature with the respective dew point temperature and concluding a formation of condensation has already taken place or is imminent when the component temperature approaches the dew point temperature or when the dew point temperature is undershot. A further method serves to prevent the formation of condensate and/or to eliminate/remove condensate on/in electric motors, in particular on/in electric motors as a component of fans or fan groups.

Abstract: The invention relates to a method for determining a fluid conveying parameter, a fluid conveying device, particularly for determining a volumetric flow, comprising the steps of Determining excitation information for mechanical excitation of at least one fluid conveying element of the fluid conveying device in at least one spatial direction by at least one first sensor means, Providing operating information, comprising at least a value of an operating variable of the fluid conveying device by means of a providing means, Analyzing the information provided and determined, Determining a fluid conveying parameter, particularly a volumetric flow, of the fluid conveying device based on the analyzed information.

Abstract: A fan is described, with the aid of which a volume flow and/or a mass flow of a medium moved by the fan (1) can be determined. This fan comprises an electric motor (2) and an impeller (3) driven by the electric motor (2), wherein the impeller (3) moves a gaseous medium in a media flow from an inflow side (5) to an outflow side (7). The fan additionally comprises a pressure sensor system, a speed ascertainment system, and an evaluation unit. The pressure sensor system is designed to ascertain an actual pressure difference (?p*) between a first region (10) and a second region (13), wherein the first region (10) and/or the second region (13) is/are formed in the electric motor (2), wherein a pressure (pA) prevails in the first region (10), which corresponds to a pressure (p1) present on the inflow side, wherein a pressure (pB) prevails in the second region (13), which corresponds to a pressure (p2) present on the outflow side.

Abstract: A method is used to identify impending or previously occurring condensation on/in electric motors, in particular on/in electric motors as a component of fans or fan groups. It includes the following method steps: Determining component temperatures, preferably surface temperatures on the electronics, on/in the motor, on/in the fan, or on/in fan groups; Determining the dew point temperature or individual dew point temperatures on the electronics, in/on the motor, fan, or on/in fan groups; Comparing the respective component temperature with the respective dew point temperature and concluding a formation of condensation has already taken place or is imminent when the component temperature approaches the dew point temperature or when the dew point temperature is undershot. A further method serves to prevent the formation of condensate and/or to eliminate/remove condensate on/in electric motors, in particular on/in electric motors as a component of fans or fan groups.

Abstract: The invention relates to a method for determining a fluid conveying parameter, a fluid conveying device, particularly for determining a volumetric flow, comprising the steps of Determining excitation information for mechanical excitation of at least one fluid conveying element of the fluid conveying device in at least one spatial direction by at least one first sensor means, Providing operating information, comprising at least a value of an operating variable of the fluid conveying device by means of a providing means, Analyzing the information provided and determined, Determining a fluid conveying parameter, particularly a volumetric flow, of the fluid conveying device based on the analyzed information.

Abstract: Disclosed embodiments include a system and method of acquiring operating parameter data of a motor system that includes an electric motor. The motor system may be provided as a component of a fan. An embodiment includes recording states of operating parameters during operation of the motor system, wherein the operating parameters include a basic parameter and at least one additional parameter; determining a state-change event of the basic parameter based on a recorded state of the basic parameter; recording a state of the additional parameter upon detection of the state-change event of the basic parameter; linking the recorded state of the additional parameter to the detected state-change event; and storing the recorded state of the additional parameter linked to the detected state-change event.