FIELD: physics, measurement.
SUBSTANCE: invention is related to metering equipment and may be used in electric drop jet marking printers. Method for paint viscosity definition in electric drop jet marking device includes periodic supply of identical paint portions by pump for the time of pump suction and discharge into hydraulic load, measurement of average pressure Pav at pump discharge, stabilisation of specified pressure level by means of selection and measurement of pump action period duration Tpump required for that by means of control unit connected to pressure detector and pump drive, and paint viscosity ηpaint is defined according to formula ηpaint=K×Pav×Tpump.
EFFECT: higher accuracy, fast action and frequency of viscosity measurement.
3 cl, 3 dwg
