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Method and device for measuring rotational speed and friction power consumption of centrifugal machine

A measurement device and measurement method technology, which is applied to measurement devices, devices using electrical/magnetic methods, and testing of machinery/structural components, etc. problems, to achieve the effect of short inspection cycle, high measurement accuracy, convenient maintenance and repair

Inactive Publication Date: 2012-12-19
陕西精进测控设备有限公司
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Problems solved by technology

[0004] The invention provides a method and device for measuring the rotating speed and frictional power consumption of a centrifuge, which mainly solves the problems of long inspection period, low measurement accuracy, inconvenient operation and maintenance, and low stability of the existing device

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  • Method and device for measuring rotational speed and friction power consumption of centrifugal machine
  • Method and device for measuring rotational speed and friction power consumption of centrifugal machine

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings: the method for measuring the rotational speed and frictional power consumption of a centrifuge of the present invention comprises the following steps:

[0038] 1. Acquire a sine wave signal

[0039] 2. The control unit gates the sine wave signal collected in step 1, and the gated sine wave signal enters the filtering and signal processing unit; specifically, the control unit outputs different address bus signals, and transmits them to one more analog switch chip, which is selected. The sine wave signal that is passed through will enter the filtering and signal processing unit, and other sine wave signals will not be able to enter the filtering and signal processing unit;

[0040] 3. Filter out interfering signals in the gated sine wave signal

[0041] 3.1 The filtering and signal processing unit filters out the interference signal whose amplitude is higher than the...

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Abstract

The invention provides a method and device for measuring a rotational speed and a friction power consumption of a centrifugal machine, which mainly solves the problems of long inspecting period, low measuring accuracy, inconvenience in operational maintenance and overhauling and poor stability of the traditional method and device. The device provided by the invention comprises a switch unit; the output end of the switch unit is connected with the input end of a filter and signal processing unit; the output end of the filter and signal processing unit is connected with the input end of a control unit; a frequency-measuring unit is embedded in the control unit; the frequency-measuring unit comprises a PXI (Peripheral eXtensions for Instrumentation) bus-based frequency measurement card and asynchronous counter circuit; and the control unit is connected with the switch unit through an address bus.

Description

technical field [0001] The invention relates to a method and device for measuring the rotational speed and frictional power consumption of a centrifuge, which is mainly used for on-site measurement of the rotational speed and frictional power consumption of a gas centrifuge in a nuclear fuel plant, and belongs to the field of detection methods and equipment. Background technique [0002] At present, the existing domestic rotating speed and friction power consumption measurement devices are imported from abroad, the detection data points of the device are relatively small, it is not easy to maintain and repair, and the operation is inconvenient. At the same time, the above device also has the following problems: [0003] The inspection cycle is too long, and when the centrifuge is faulty or damaged, it cannot be detected in time, alarmed and controlled in time; the measurement accuracy is low, resulting in inaccurate measurement results, thus affecting judgment errors; struct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/48G01M99/00
Inventor 贾党平
Owner 陕西精进测控设备有限公司
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