Particulate Volume Monitor model PVM-100A SPECIFICATIONS. OUTPUT . Analog Voltage ±10V Channel 1: Integrated Particle Volume [LWC] Channel 2: Integrated Particle Surface Area [PSA] Channel 3: Effective Droplet Radius [Re] MEASUREMENTS . Channel 1: 0.002-10 g/m³ Channel 2: 5-20,000 cm²/m³ .

2002年10月1日 · Abstract The Gerber Scientific, Inc. Particle Volume Monitor (PVM) is widely used to measure the liquid water content (LWC) and droplet effective radius (reff) of water clouds. The LWC response of the airborne version of this instrument, the PVM-100A, was evaluated in two independent wet wind tunnel experiments under well-controlled conditions.

The Particule Volume Matter (PVM-100A) is an in situ airborne cloud probe manufactured by Gerber Scientific. It measures liquid water content and the effective radius of cloud droplets by measuring the scattering intensity proportional to the droplets' density and …

1994年4月1日 · A new optical sensor, PVM-100A, for aircraft cloud-microphysical measurements is described. The sensor measures the liquid water content (LWC), the integrated particle surface area (PSA) and the effective droplet radius r e of cloud droplets.

wind tunnel experiments presented in this paper show that the response of the PVM-100A to monodisperse droplets begins to decrease when the droplet diameter is between 20- and 30-mm diameter. For polydisperse droplet populations (such as those found in natural clouds) the efficiency of the airborne PVM-100A for sensing

The primary measurements from the PVM-100A are liquid water content and effective radius of cloud droplets. The measurements are based on measured scattering intensity from an ensemble of droplets at a set of angle chosen so that the result is proportional to the third moment of the size distribution (for liquid water content).

2002年10月1日 · wind tunnel experiments presented in this paper show that the response of the PVM-100A to monodisperse droplets begins to decrease when the droplet diameter is between 20- and 30- m

1993年3月12日 · Three activities were proposed for testing the new aircraft instrument, PVM-100A: (1) Calibrate the PVM-100A in a facility where the liquid-water-content (LWC) channel, and the integrated surface area channel (PSA) could be compared to standard means for LWC and PSA measurements.

Earlier studies predict that the PVM-100 (the ground-based version of the PVM) theoretical response to monodisperse droplets diminishes for droplet diameters larger than about 40 μm. However, results from the wind tunnel experiments presented in this paper show that the response of the PVM-100A to monodisperse droplets begins to decrease when ...

The PVM-100 is our ground-based instrument for measurement of aerosol volume, surface area and effective radius. The PVM-100A is designed for aircraft mounting and also measures volume, surface area and effective radius.