Ultrasonic Water Meter Verification Equipment Working Principle

With the development of smart metering, various types of ultrasonic water meter verification equipment have emerged. The measurement characteristic detection device includes a detection table, a water storage tank, a PLC, and a host computer connected to the PLC. The testing platform is equipped with fixed ultrasonic water meter verification equipment in series. The testing platform, the water storage tank, and the water inlet and outlet of the series to be tested are respectively equipped with a water supply mechanism and a water return mechanism. Weighing bucket, the water outlet of the series of ultrasonic water meter verification equipment to be tested is connected to the weighing bucket through a pipeline, and the weighing bucket is connected to the water storage tank through two pipelines. The first pipeline is equipped with a flow-regulating mechanism, and the second pipeline is equipped with a start-stop valve, and the start-stop valve and the flow-regulating mechanism are both connected to the PLC. The invention has high detection accuracy and low detection energy consumption; eliminates the risk of short circuits caused by water overflow; can improve detection accuracy, reliability, and detection effect, and at the same time, the data after detection is automatically stored to facilitate subsequent data analysis and product tracking.
The equipment is a new type of water meter, which further calculates the water flow by detecting the time difference caused by the different speeds of the ultrasonic beam propagating upstream and downstream in the water, and then analyzes and processes the water flow. Good reliability, wide range ratio, long service life, and so on. The measurement characteristics of the water meter need to be tested before leaving the factory. At present, there is no set of equipment that can realize the accurate and automatic detection of the ultrasonic water meter verification equipment.
Temperature sensors that monitor the temperature of the flowing water are placed in the water storage tanks, as the water flowing into each meter is pre-stored in the stabilization irrigation tanks. As the storage time varies, the temperature of the water will change, and the temperature sensor is set in the water storage tank. The temperature of water flowing into each water meter and weighing container cannot be truly reflected, making a subsequent selection of water density based on the water temperature unreliable.
The test bench is equipped with a fixing mechanism, which can fix a plurality of series-arranged to-be-tested on the test bench, and the water storage tank and the water inlet of the series to be tested have water storage capacity. The water in the water tank is input to the water supply mechanism in the ultrasonic water meter verification equipment to be tested, and a water return mechanism is set between the water storage tank and the water outlet of the ultrasonic water meter verification equipment to be tested in series to make the water in the ultrasonic water meter verification equipment to be tested Back to the water storage tank, the water return mechanism is equipped with a metering piece that can measure the water flow, and the metering piece is connected to the upper computer. The first pipeline is connected to the weighing bucket, and the weighing bucket is connected to the water storage tank through the second pipeline. The first pipeline is equipped with a flow adjustment mechanism, and the second pipeline is equipped with a start-stop valve. Both the start-stop valve and the flow adjustment mechanism are connected with the PLC. connect.