Laboratory

Complex Fluids Research Laboratory with Applications in Energy and the Environment

Department

Department of Chemical Engineering

Manufacturer (model)

Signal Processing SA (DOP 4000)

Commissioning

2016

Equipment Description

The DOP 4000 ultrasonic Doppler velocimeter uses a pulsed ultrasonic echo technique to measure fluid velocity profiles. The velocimeter can simultaneously measure different types of profiles, including Doppler energy profiles, echo profiles, and spectral density (FFT), along with several other useful parameters in flowing liquids. In the laboratory, this instrument is particularly used to characterize velocity profiles in non-uniform channels.

Technical Specifications

• Pulse emission period: 100 ns (10 MHz) to 2,220 ns (450 kHz)

• Step size: 20 ns

• Three emission power levels, with maximum instantaneous levels:

  • Low: 10 Vpp

  • Medium: 30 Vpp

  • High: 60 Vpp

• Pulse repetition frequency: 0.1 Hz to 15,625 kHz

• Reception: 4 to 1,000 gates

• Uniform gain (TGC): −40 to +40 dB

• Curve: Linear in dB

• Sensitivity: > −100 dBm

Areas of expertise

• Fluid Mechanics

• Blood Flow

• Microfluidics

Conditions of Use

Training on the instrument is required, or the instrument must be operated by a research professional. Available to academic and/or industrial collaborators.

Rental Fees (CAD)

On-Campus

80$/h

Off-Campus (Academic)

120$/h

Industry

150$/h

Reservations

Prof Seyed Mohammad Taghavi

seyed-mohammad.taghavi@gch.ulaval.ca

418 656-2131 poste 402634