| 摘要 |
FIELD: medicine.SUBSTANCE: invention refers to medical equipment, namely to dental machines. An electric and pneumatic tool controller system of a dental unit comprising a scaler, an electric micromotor with a tip and a turbine, accommodates an electric control unit which includes an electric micromotor control unit and a scaler control unit, a pneumatic control unit, pneumatic scaler, electric micromotor and turbine selector valves, as well as a data display unit and an air pedal. The system further comprises a control unit, a data processing unit, two dual potentiometers consisting of two mechanically coupled variable resistors, relay switches, and a pressure sensor.EFFECT: use of the invention provides control and display of selection and operation of all the tools; a scaler power controller allows a doctor providing the tool power required for each mode of scaling, and air pressure control in the turbine within the pre-set limits to prevent excess of these limits and, respectively increased operation time.1 dwg |
