INTERFACE AND PIG DETECTION

MINISONIC ISD

Minisonic ISD detects the changes of products in a pipeline by measuring the speed of sound. The speed of sound is a precise specification of the product and has a correlation to density or concentration.

Minisonic ISD is also a detector of the passage of pigs and spheres in a pipeline by the analysis of the acoustic signal.

The measurement of the speed of sound depends on the temperature and pressure conditions, so it is necessary to use a numeric corrector to obtain the real measurements.

The Minisonic ISD is available in a standard or explosion proof model.

Typical Applications

• measurement of the speed of sound which has a correlation to density and concentration (monitoring of refined oil products transportation)
• interface detection of products changes
• detector of the passage of spheres
• all pipe diameter from 4" to 60"
• programmable measurements : 500 to 2000m/s
• wide range of measurable fluids

Advantages

• the external probe can be buried without any contact with the liquid
• easy installation without any break in the pipe
• no break in the process
• static system without wearing out or servicing
• no pressure drop
• no constraint of right length or probes place
• fast response time
• great sensibility
• great accuracy : speed of sound resolution to +-0.1m/s with a rate of 200Hz
• cost independent of the pipe diameter
• possible compensation of pressure and temperature influence

MINISONIC PSD
Sphere detector

Minisonic PSD (Pig * Sphere Detector) permits the detection of the passage of spheres and pigs in a pipeline.

This detection is made by the analysis of the acoustic signal.

An external probe is used for liquids and an intrusive probe for gas.

* a Pig is scrapper or a separating sphere

Typical Applications

• detection in a pipeline and counting of the passages of spheres which separate the fluids for the monitoring of oil products or gas transportation and for the detection of products changes
.
• All pipe diameter from 4 " to 60"
• Programmable celerity range : 500 to 2000 m/s
• Wide range of measurable fluids

Advantages

• pig and sphere detector, even at high velocity
• detection of sphere even if joined
• detection independent of the flow direction
• the probe can be buried
• easy installation without cutting the pipe
• no servicing
• no pressure drop
• no moving parts
• no constraint of right length or of probe place
• Fast response time
• no recalibration

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