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Industry Information
Analysis of various prices of vortex flowmeters
2011-10-15 11:07:10

      A few days ago, a market survey found that the prices of vortex flowmeters on the market show a variety of prices. Why are the prices so different? The reasons for this disruption are simple for everyone to analyze. 涡街流量计质量好坏有 着很大的 ,而质量又与二个局部 相关: 涡街流量计的 探头 ;二 涡街流量计的 线路板 In fact, the price of the vortex flowmeter has a great relationship with the quality of the vortex flowmeter , and the quality is related to two local components : one is the probe of the vortex flowmeter ; the other is the circuit board of the vortex flowmeter. .

探头:里面有两片压电晶体,一片 用于抗震动搅扰 另外 一片 用于检测 1. Vortex flowmeter probe: There are two piezoelectric crystals inside, one is used to resist vibration and disturb , and the other is used for detection . 然后 经过固定法兰固定在涡街体管壁上 The probe leads are the two leads of the test piece. The probe housing is pierced by the vortex body tube wall, and then fixed on the vortex body tube wall through a fixed flange . 能正常 工作 ,最高可抗350℃。 The probe can work normally below 300 ℃ , and the highest resistance is 350 ℃. 温度 高,将 毁坏密封瓷体,使探头 功能下降,甚至 损坏探头。 If the temperature is too high , the sealing porcelain will be damaged, the function of the probe will be reduced, and the probe may even be damaged. 用万用表“×10k”档反省探头两根引线,应 为无量大, 如果 有阻值 的话 那么 探头功能下降; 如果 在几十千欧姆以下 那么 探头损坏。 We can use the multimeter “× 10k” file to reflect the two leads of the probe. It should be immeasurably large. If there is a resistance value , the probe function is reduced. If it is below tens of kiloohms , the probe is damaged.

  线路板:它的设计好坏直接关系到涡街所发出的信号 是不是 准确,我们可以用示波器检测到流量计在使用时所发出的波型。 2. The circuit board of the vortex flowmeter : its design is directly related to whether the signal sent by the vortex street is accurate. We can use an oscilloscope to detect the wave shape emitted by the flowmeter in use.

     生产 中传感器与表体的密封 相当重要,密封不好的表 定会发生泄漏 In addition , the sealing of the sensor and the meter body in the production of the vortex flowmeter is also very important, and the meter with a poor seal must leak . 在出厂前要进行打压试验,并经过流量标定。 Therefore, a pressure test is performed before leaving the factory, and the flow rate is calibrated.