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8 teChniCal data
8.1 Measuring Principle (twin tube)
Static Meter Not Energized and with No Flow
1. Measuring tubes
2. Drive coil
3. Sensor 1
4. Sensor 2
A Coriolis twin tube mass flowmeter consists of two
measuring tubes 1 a drive coil 2 and two sensors (3 and
4) that are positioned either side of the drive coil.
Energized Meter
1. Measuring Tubes
2. Direction of oscilation
3. Sine wave
When the meter is energised, the drive coil vibrates
the measuring tubes causing them to oscillate and
produce a sine wave 3. The sine wave is monitored by
the two sensors.
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LCI40
Series IOM
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