ProCap
quantitative flow
visualization system
Data sheet

streamwise gmbh
Address Emil-Staub-Strasse 5CH-8708 Maennedorf
Emailinfo@streamwise.chPhone+41 44 545 32 50

24. May 2024

Content
1.

ProCap3

2.

Working principle

3

3.

Applications

3

4.

Versions of ProCap

35.

Features

56.

System specifications

66.1

Compact package components

66.2

Professional options

8

6.3

Additional items

9

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1. ProCap
ProCap (Probe Capture) is a new and unique tool for flow visualization and measurement that combines
the intuitive and simple handling of a smoke probe with the data content and quality of a 3D-point
measurement scan. In the compact version ProCap offers very flexible measurement possibilities forsmaller wind-tunnel applications.
2. Working principle
The region of interest is manually scanned by the operator using a hand-held probe while the system
records the measurement data, optically tracks the probe’s instantaneous position and processes andvisualizes the flow field in real-time. This human-based scanning approach is very efficient as inregions of large gradients the scanning is refined and no machine-teaching even for complexgeometries is necessary. The measured 3D data is accessible in real-time, typically on a large screen
or projected to a wall with good visibility during testing. For later analysis, the data is also available
offline using either the ProCap software or standard CFD visualization and analysis tools.
3.

Applications
Motorsport•Reduce wind tunnel setup and turnaround times•Obtain precision 3D velocity and pressure data in areas that area optically-inaccessible•Provide a powerful, quantitative alternative to classical smoke-wand visualization
Wind tunnel•Get real-time, independent feedback from your traverse system•Digital visualization of both your model and the probe, reducing the risk of probe crashes•True three-component, three-dimensional velocity fields without the need for flow seeding,and reduce aerodynamic testing time
HVAC and clean-room•Very low speed ultrasonic flow probe available•Scanning of problematic areas to visualize real flow situation•Flow probe movement compensatedEducation•Provide students with a real-time, quantitative visual representation of complex, threedimensional flow fields•For internal or external flows•Robust, hands-on measurement system ideally-suited for laboratory demonstrations

4. Versions of ProCap
Customers can choose out of two software versions:▪

ProCap Compact
A one-stop flow measurement solution, easy to use and quick to setup.

▪

ProCap Professional
Offering full features and flexibility for adaptation to customer specifications and facility. We offer abasic upgrade package as described below that can further be adapted to the application specificrequirements.

Table 1 shows the capabilities of these two versions.

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Table 1: Comparison ProCap Professional and ProCap Compact

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5.

FeaturesPlug-and-play•Easy and intuitive to set up and use•Digital probes with USB connector

Wide operating range•Pressure sensitivities available down to 250 Pa
full-scale, and temperature-rated between 5°
and 60° C

Digital flow probes•Velocity, pressure and temperature from amulit-hole and ultrasonic flow probes

Fast response•RMS bandwith up to 200 Hz

Fully quantitative dataset
Complete package•Direct analysis and post-processing or export
capabilities to 3rd party software
Optical motion tracking•Three-dimensional motion capture for
precision, independent relative position
tracking•Carefully selected hardware components forseamless operation•rugged transport casing holds all components
Versatile application•Wide range of possible application including
teaching experiments for seamless operation

Easy visualization
Modular system (Pro)•Clear, simple, and powerful real-time graphics
and post-processing tools for volumetric flow
visualization•Immediate viusalization during measurement•Flexible and scalable system for a wide range
of applications and facilities

Application specific probes (Pro)

Customizable components (Pro)•Wide range of flow probes with up to 320° ofacceptance angle and low-speed capabilities•Non-standard components can be integrated
according to the customer’s specifications

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6.

System specifications

6.1 Compact package components
12

ProCap Compact software suite preinstalled on a powerful laptop
Software▪ Real-time data interpolation withadaptive spatial resolution▪ Visual probe position and measurement
point density feedback▪ Real-time adjustment of viewing angleand zoom, positioning▪ Visualization features: vectors, contourplanes▪ Selectable quantities, colormaps andscaling▪ Probe velocity correction▪ CAD model import (stl file format, e.g.
available from 3D scanners)▪ Fusion of different measurements to one
dataset (offline)▪ Data-export to Paraview (vts file-format)
Laptop▪ Powerful mobile workstation with preinstalled ProCap software (currentlybased on Lenovo)
The following digital probes can be used:
5-hole digital probe, fully integrated with USB connector from Vectoflow
iProbe▪ Digital 5-hole flow probe▪ USB data and power connector▪ Flow direction, velocity, static anddynamic pressure output▪ Passive optical markers▪ Left- or righthanded operation▪ stl file for position feedback included▪ Multiple pressure range options▪ Metal housing▪ Individually calibrated

14-hole digital omni-probe, fully integrated with USB connector from Vectoflow
Omni-iProbe▪ Digital 14-hole flow probe▪ USB data and power connector▪ Flow direction, velocity, static anddynamic pressure output▪ Passive optical markers▪ Left- or righthanded operation▪ stl file for position feedback included▪ Multiple pressure range options▪ Metal housing▪ Individually calibrated
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Three Component Ultrasonic Probe TriSonica™ from Anemoment
TriSonica™ Sphere▪ Digital 3D ultrasound probe▪ Aluminum housing▪ USB data and power connector▪ Flow range (0-30 m/s): ±0.1 m/s▪ ±60° out-of-plane flow acceptance angle▪ Temperature▪ Range: -40° C to 85° C▪ Resolution: 0.01° C▪ Accuracy: ±2.0° CTriSonica™ Mini
▪ Digital 3D ultrasound probe▪ USB data and power connector▪ Flow range (0-10 m/s): ±0.1 m/s▪ ±15° out-of-plane flow acceptance angle▪ Temperature▪ Range: -40° C to 85° C▪ Resolution: 0.01° C▪ Accuracy: ±2.0° C▪ Humidity, static pressure, dew point,magnetometer, and air density sensors
33D camera system Optitrack V120 trio, incl. dongle license for tracking software
Optitrack Camera▪ V120 Trio Camera bar incl. dongle licenseof the tracking software and cabling▪ USB data connection▪ Frame Rate: 120 FPS▪ Latency: 8.333 ms▪ Accuracy: Sub-millimeter▪ Working distance: 0.6 to 5 m(Please visit the OptiTrack website for thedetails regarding hardware specification and software license andupdates)

4

Custom transport casing
Industrial casing▪ Custom made casing▪ Fit to customer specific probe shape▪ Holds all components but laptop

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6.2 Professional options
1

ProCap Professional software suite preinstalled on powerful laptop
Professional software features▪ Increased number of visualization planes▪ Visualization plane can move with probe▪ Iso-surfaces of selectable quantities▪ Streamline visualization▪ Enhanced spatial reference with Voxeleraser▪ Display and tracking of multiple modelgeometries▪ Support of customized and analogue
probes up to 14 holes▪ Acquisition of user-defined analoguechannels▪ Support of customizable Optitrack,
Qualisys and Vicon tracking systems

2Custom optical tracking system▪
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▪
▪
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Optitrack or Qualisys tracking systems
Tracking for large volumes with submillimetre accuracy
Up to 1 kHz tracking rate
Wide range camera options
Permanently installed systems
Working distance up to 8 m
Outdoor (daylight) and underwatercapability
Model position and deformation
measurement
High-speed video output

Pro Cap data sheet | Page 8/9

6.3 Additional itemsDescription
123456789101112

Software maintenance contracts for one or three years
On-site installation and training
Light-weight telescopic probe stick with articulated joint
Rugged telescopic pole for probe with different lengths
Tripods and magic arms
Custom tracking setup
Camera mounting hardware for fixed installations
Customized transport casing
Camera calibration hardware
Extra marker kits
Customized probe types and shapes
Customized probe and mounting hardware (e.g. mechanicalsupport for high velocities)

Applies toCompact
Professionalxxxxxxxxxxxxxxxxxxx(All content subject to change without prior notice).

Contact:streamwise gmbh
Emil-Staub-Strasse 5
CH-8708 Maennedorf
info@streamwise.ch+41 44 545 32 50
www.streamwise.ch

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