PV6M multi-channel particle velocity measuring instrument Introduction:
The PV6M multi-channel particle velocity measuring instrument can effectively measure the particle motion velocity in gas-solid and liquid-solid two-phase systems in real time. The PV6M multi-channel particle velocity measurement instrument uses optical fibers as the measurement probe. The tail light source is introduced into the measurement area at the front end of the probe through the optical fibers inside the probe. The reflected light of the material in the measurement area is then transmitted back to the photodetector at the tail end of the fiber bundle through the same fiber bundle, and converted into a voltage signal proportional to the intensity of the reflected light of the material. When the particle material moves along the direction of the arrangement of the two fiber end faces, two sets of data with similar waveforms and a certain delay in time will be generated; Perform cross-correlation operations on the two data sources to determine the velocity of the material, and then obtain the velocity distribution.
The entire equipment consists of a PV6M particle velocity measuring instrument host, 2-4 optical fiber probes, signal cables, and application software. Features:
1. The product size is small and has little interference with the flow system
2. The instrument can connect 2 or 4 probes simultaneously, allowing real-time measurement of 2 or 4 measurement points simultaneously
3. Each channel is equipped with gain and baseline offset adjustment functions, and the sampling frequency (2 channels 100Hz-500kHz, 4 channels 20Hz-50kHz) and sampling data amount can be adjusted
4. The system software functions include: raw data collection and display; Self correction of measurement channel parameters; Real time or playback display of voltage time curves for each channel; Save voltage time data for each channel, calculate and save the average voltage and threshold voltage, particle average velocity, velocity extremum for each channel, calculate particle velocity distribution, etc; Can be set and saved, including sampling frequency, sampling data amount, probe parameters, and sampling channel window, etc; The saved data files can be opened by Notepad and Excel software; Application measurement software can run in a Windows environment
5. Online measurement, displaying the original curves, cross-correlation curves, velocity distribution, etc. of each channel data segment in real-time through histograms, curve graphs, etc Technical parameters:
Instrument models: PV6M-2, PV6M-4
Applicable environment: atmospheric pressure, temperature not exceeding 80 ℃
Measurement range: 0.1-30m/s for 2 channels, 0.1-5m/s for 4 channels
Measurement system: The particles inside the system are in motion, with a particle size of 0.5-2mm (particle size of 0-2mm in gas-solid systems)
Measurement method: Contact based online measurement
Probe size: standard probe measurement spacing of 1mm, probe diameter of 5mm, probe measurement section length of 400-600mm;
Introduction:
The PV6M multi-channel particle velocity measuring instrument can effectively measure the particle motion velocity in gas-solid and liquid-solid two-phase systems in real time. The PV6M multi-channel particle velocity measurement instrument uses optical fibers as the measurement probe. The tail light source is introduced into the measurement area at the front end of the probe through the optical fibers inside the probe. The reflected light of the material in the measurement area is then transmitted back to the photodetector at the tail end of the fiber bundle through the same fiber bundle, and converted into a voltage signal proportional to the intensity of the reflected light of the material. When the particle material moves along the direction of the arrangement of the two fiber end faces, two sets of data with similar waveforms and a certain delay in time will be generated; Perform cross-correlation operations on the two data sources to determine the velocity of the material, and then obtain the velocity distribution.
The entire equipment consists of a PV6M particle velocity measuring instrument host, 2-4 optical fiber probes, signal cables, and application software.
