FIELD: medical equipment.;SUBSTANCE: group of inventions relates to two versions of an oral cleaning device, two versions of an oral cleaning system and two versions of a method for calibrating a pressure sensor of an oral cleaning device. In the first version, the device comprises a body section and an elongated element extending from the body portion and comprising a head. Device includes a pressure sensor configured to receive force measurement data applied to the head by a user during a cleaning session. Device has a processor configured to receive from the pressure sensor the force measurement data applied to the head. Processor is configured to obtain a calibration parameter of a non-zero load from a non-zero load applied to the elongated member. Weight of the section of the oral cleaning device represents a non-zero load. Processor is configured to calibrate, using obtained calibration parameter of non-zero load, force measurement data received from pressure sensor. In the second version of the device, the processor receives a calibration parameter of a non-zero load from a non-zero load applied to the elongated element, when the oral cleaning device is subjected to compression by a force applied to the elongated member. In the first version, the system comprises a first version of the device for cleaning the oral cavity and a charging station, made with possibility of containing and connecting with device for cleaning of oral cavity. Processor is configured to obtain said nonzero load calibration parameter when the oral cleaning device is connected to the charging station. Charging station comprises a support post configured to receive a device for cleaning the oral cavity so that a non-zero load is applied to a device for cleaning the oral cavity and detected by pressure sensor. In the second version of the system, the charging station comprises a resistance force mechanism, configured to apply a resistance force to a portion of the oral cleaning device such that a non-zero load is applied to the oral cleaning device and detected by a pressure sensor. In the first version, the method comprises a step of providing a device for cleaning the oral cavity according to the first version. Method includes a step for obtaining a calibration parameter of a nonzero load from a non-zero load applied to the elongated element. Method includes calibration stage by means of processor using calibration parameter of non-zero load, force measurement data received from pressure sensor. Method includes a stage of arrangement of the oral cavity cleaning device so that mass of the section of the oral cleaning device contains a non-zero load. In the second version, the method comprises a step of applying a resistance force to an oral cleaning device such that the resistance force contains a non-zero load.;EFFECT: technical result is accurate calibration of pressure sensor of device for cleaning of oral cavity.;12 cl, 8 dwg
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