Éléments principaux
- Modular platform accepting up to 8 modules
- Compatible with both Opsens interferometric (WLPI) and GaAs-based (SCBG) technologies
- High speed modules (1000 Hz sampling rate)
- High linearity, precision and resolution
- Ethernet, CAN Bus and RS-232 interfaces
- Individual ± 5V analog outputs
- Host-independent graphical user interface (GUI)
- 6.5” Front panel touch-screen color display
Applications
- High speed simultaneous measurements of temperature, pressure, strain and/or displacement
- Hazardous environments
- Fast transient measurements
- Static or dynamic measurements conducted under confined space, hazardous and strong EMI/RFI/MRI environments
- Electro-explosive device testing (RADHAZ and HERO applications: see RadSens datasheet)
- Best suited for most laboratory experiments
Description
The ProSens is a polyvalent, scalable system that includes a control unit (PSC-D), modular signal conditioner units (PSP-62 and/or PSR-100 modules), a comprehensive graphical user-interface environment, and a variety of fiber optic sensors for measuring temperature, pressure, strain and displacement. The ProSens is readily adaptable for the most demanding applications for high speed measurement of temperature, pressure, strain, and displacement.
By accepting any combination of PSP-62 WLPI modules and PSR-100 GaAs modules, the ProSens allows the user to select the most appropriate technology for delivering the best performance for every points of the measurement chain. As described hereinafter, the patent pending WLPI (white-light polarization interferometry) technology and the SCBG (GaAs-based spectrophotometry) technology offer very distinct advantages for meeting specific requirements.
The ProSens PSC-D control unit houses a reliable, low power, Intel™ XScale processor based computer running under real time Windows CE™. System set-up, data collection and data storage are no longer a headache for the user with the most comprehensive graphical user interface. Through the Ethernet RJ-45 connection, the user can easily interface with a PC computer and get access to real time data with no loss of accuracy due to digital to analog, back to digital conversion.
PSC-D ProSens Platform
The ProSens has been developed with cutting edge technologies to provide the user with the most flexible tool for performing temperature, pressure, strain or displacement measurements in the most adverse conditions. Both WLPI (interferometric) and SCBG (GaAs-based) fiber optic sensing technologies can be mixed together within the PCS-D ProSens chassis, then getting the most out of your measurement applications and future needs.
Control Unit with GUI Touch-Screen Display
The PSC-D ProSens chassis offers a Windows CE based single board computer with a graphical user interface 6.5” TFT color touch-screen display. This GUI is ideal for easy system control and set-up, fast data collection and storage.
Control Unit with 8 measuring slots
The PSC-D ProSens chassis accepts up to 8 measuring modules. The slots can be populated with any mix of PSP-62 (WLPI) modules and PSR-100 (SCBG) modules. Mixing technologies do not make the operation of the ProSens any trickier.
Ethernet communication interface
Easy configurable Ethernet communication interface provides the throughput necessary for real time data transfer between the ProSens and remote computer.
SoftSens user interface software
Opsens’ SoftSens software runs on a PC computer as a remote replicate of the ProSens graphical user interface (GUI). The user has the ability to control, display, acquire and save data in the same way as with the ProSens GUI.
ProSens Fiber Optic Sensing Modules
Opsens has developed the ProSens system around both the WLPI and the SCBG (GaAs-based) fiber optic sensing technologies actually available from Opsens. Each technology delivers very distinctive advantages, then allowing the user to perfectly suit its measurements needs for various applications. Both PSP-62 and PSR-100 modules are made to slot into the PSC-D chassis. PSC-D provides power to the modules, a digital communication channel as well as on board computing capabilities. Data and control signals are digitally transferred to and from the PSC-D. Being all-digital, no loss of accuracy occurs as a result of digital to analog to digital data conversion.
PSP-62 (WLPI – interferometric)
The PSP-62 is an interferometric module that measures the absolute path length difference of any of Opsens’ WLPI sensor. Each sensor comes with a calibration factor that is easily entered via the GUI touch-screen display or with the SoftSens remote interface.
The PSP-62 can be configured to sample measurements at rates varying from 100 Hz to 1000 Hz. The analog output scale and offset are adjustable, with averaging capability for improved resolution.
The PSP-62 is a multi-parameter module compatible with all of Opsens’ WLPI sensors, hence allowing the user to perform temperature, pressure, strain and/or displacement measurements.
This technology is best suited for higher accuracy measurements.
PSR-100 (SCBG – GaAs-based spectrophotometric)
The PSR-100 is a GaAs-based spectrophotometric module that measures the spectral position of the temperature-dependent bandgap of a GaAs crystal affix at the end of a 100 microns core optical fiber. This module is compatible with Opsens’ SCBG (GaAs-based) fiber optic temperature sensors and hence, it requires no calibration factor.
The PSR-100 can be configured to sample measurements at rates varying from 100 Hz to 1000 Hz. The analog output scale and offset are adjustable, with averaging capability for improved resolution.
The PSR-100 is dedicated solely to temperature measurements. Although they are not as accurate as with the WLPI-based sensors, SCBG temperature sensors can be made very small, hence providing extremely fast response time of the order of milliseconds.
