Transducers

• Frequency: 0.5 MHz 1 MHz 2 MHz 4 MHz 8 MHz 10 MHz
  Higher frequency → better spatial resolution, but may increase attenuation in some liquids.
• Piezo diameter: 14 mm 10 mm
  Larger diameter → less diverging beam, longer near field, smaller sampling volume.
• Serie: LS (Standard) SS (Short) LH (High temperature) AS (Ultra short axial cable) RS (Ultra short radial cable)
  Choose based on space and operating temperature. The series does not affect the ultrasonic properties.

Learn more about ultrasonic field theory

The reference of the transducer is: TR0114LS

Impedance: around 50 ohm
Cable: RG174
Connector: BNC
Case material: stainless steel (316L)
Front material: epoxy
Maximum pressure: 30 Bar
Maximum temp: 60 °C
Typical insertion loss:

Start by selecting the highest possible frequency for best spatial resolution, considering:

• Maximum velocity and measurement depth are linked. Use UDOP software to evaluate maximum measurable velocity.
• Ultrasonic attenuation depends on frequency. Some liquids (like oil) and plastics may limit usable frequency.

Next, select the piezo diameter:

• Small diameter → lower sensitivity
• Large diameter → less diverging beam, smaller sampling volume, longer near field

Finally, choose the case/series based on available space and temperature. It does not affect ultrasonic performance.

If using the probe in a strong magnetic field, consider the "Deported matching impedance" option. It relocates the matching components close to the connector to avoid magnetic interference.