REGULATING DIGITAL FLOW INDICATOR

摘要

The solution concerns the regulating digital flowmeter. Its design includes a pivoted throttle valve, which is placed in the body of the flowmeter. In front of the throttle valve, the temperature sensor and the first pressure sensor are placed in the direction of the flow and, behind the throttle valve, the second pressure sensor is placed in the direction of the flow. The outputs of the temperature sensor with the outputs of the first and second pressure sensor are individually connected via the first to third analogue-to-digital converter to the corresponding outputs of the processor unit with the storage element and with the display and recording devices. The output of the processor unit is connected to the input of the impulse generator, the output of which is connected via the amplifier to the control terminal of the drive unit with the synchronous motor, which is connected by means of the transmission mechanism to the pivoted throttle valve. The pivoted throttle valve is slewed in the body of the flowmeter in a position in which the pre-selected pressure loss is set by the flow with inlet pressure equal or different from atmospheric pressure. The size of this slew is given by the number of the impulses being transmitted by the impulse generator, which is controlled by the processor unit with storage.<IMAGE>