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Flow meter series
Temperature instrument series
Pressure instrument series
Calibration instrument series
Level instrument series
Digital display instrument series
Transmitter instrument series
Wire and cable series
Bridge instrument cabinet series
Pipe fitting valve series

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Industry Information
Effect of Foam on Measurements of Ultrasonic Level Gauge
2011-9-6 9:01:29

      使 超声波液位计 测量液位的过程中,会遇到泡沫干扰 问题。 In the process of measuring the liquid level with an ultrasonic level gauge , the problem of foam interference will be encountered . 一般 可以分为 四种 :干 、湿 、中性 重型 Foam can be divided into four types : dry , wet , neutral and heavy . 1)由于 干泡沫和湿泡沫能 将超声波反射回来, 所以 超声波液位计 来测量 时对测量值没有 影响; 2) 中性泡沫会吸收和扩散超声波,因而会减弱超声波的反射,回波不稳定, 从而影响测量值;( 3) 当介质表面 为稠而厚的 泡沫时, 超声波液位计 测量误差会较大或 无法测量。 ( 1) Because the dry foam and wet foam can reflect the ultrasonic wave back, there is no effect on the measured value when measuring with the ultrasonic level meter ; ( 2) The neutral foam will absorb and diffuse the ultrasonic wave, thus weakening the ultrasonic reflection The echo is unstable, which affects the measurement value. ( 3) When the surface of the medium is mostly thick and thick , the measurement error of the ultrasonic level gauge will be large or impossible to measure.