Home > Powder Flow Analysis > The Powder Flow Analyser


Powder Flow Analyser

Powder Flow Analyser bullet

How it Operates using the Patented Blade Principle

Powder Flow Analyser bullet

Instrument Specification

Powder Flow Analyser bullet

Software Functionality

Powder Flow Analyser bullet

Calibration

Powder Flow Analyser bullet

Accessories

Powder Flow Analyser bullet How it Operates

Stable Micro Systems Ltd. use the test frame and vertical drive system provided by the Texture Analyser, and add the additional rotational drive and software functionality to form the Powder Flow Analyser.

Powder Flow Analysers can be purchased as completely new working systems, or you can take your existing Texture Analyser and attach the Powder Flow Analyser. In this form the Powder Flow Analyser can be used as a texture analyser and is fully compatible with all existing and future Stable Micro Systems range of probes, fixtures and software.

The innovative patented Controlled Flow* test method enables almost any sample capable of flow (other than low viscosity liquids) to be tested.

Due to the unique profile of the patented helically machined rotor the instrument can be programmed to move through the powder in different ways to measure many different characteristics. For example, the sample of powder can be conditioned, then compacted to a specified stress (to imitate storage conditions) and then the rotor can be programmed to slice down through the powder (with minimum disturbance to the powder column, by moving down at the same helical path as the blade profile) and then to move up through the sample measuring the cohesion between the powder after the consolidation. Thus measuring how well will the powder flow after storage in a full silo.

BACK TO TOP


Powder Flow Analyser bullet Instrument Specification - Measurement and Control

Feature

Value

Note

Force Down

5kg (50N) max.

± 0.05%

Force Up

5kg (50N) max.

± 0.05%

Force Zero Hysteresis

< ± 0.1g

Rotor Blade 48mm dia. Tip Speed

Dependent on Test Angle

0 deg: 0 to 754mm/sec (limit of 300rpm rotational speed)
90 deg: XT2i  - 0 to 10mm/sec

XTplus - 0 to 40mm/sec

Rotor Blade 23mm dia. Tip Speed

Dependent on Test Angle

0 deg: 0 to 360mm/sec
90 deg: XT2i  - 0 to 10mm/sec

XTplus - 0 to 40mm/sec

Rotor Blade Speed Control Accuracy

Better than 0.05%

Data Acquisition

Force, Distance, Time

Up to 500 data points per sec per channel (16 bit accuracy)

Operating Temperature

0 to 40 deg. C

Operating Conditions

Dust and Splash resistant

Power Supply

90V - 264V AC, 47Hz - 63 Hz

BACK TO TOP


Powder Flow Analyser bullet Software Functionality

Software provides rapid, effective analysis and report generation.

Analysis is usually completed by comparing the force work done, and this provides an accurate, repeatable and sensitive comparison of samples under the flow conditions set up by the Test Settings.

Lift-aeration work done can provide a very accurate measure of cohesion.

The analytical software enables macros to be written that can quantify almost any aspect of the Force and data resulting from the test.

As well as work done (area under curve) many other comparisons are possible including:-

a) Rest - flow transition power consumed (when completing the same test at different speeds).

b) Rate of change (gradients - mixing applications),

c) Linear distance to smooth line comparisons,

d) Many other comparative measures.(See Example Measures and Results)

See Typical data analysis, Customisable User Interface and Presentation Layout Options.

BACK TO TOP


Powder Flow Analyser bullet Calibration

Calibration of both force and distance is carried out in house at the end of the manufacturing process.

Customers can easily "re-calibrate" the instrument in their laboratories depending upon their good laboratory practice.

The instrument's accuracy can easily be checked in terms of speed, distance and force measurements to meet the more demanding regulations of certain industries.

BACK TO TOP


Accessories

Test Vessels

Precision tube with removable acetal base attachment ring to enable easy cleaning.  Vertical alignment and radial tolerance better than ± 0.05mm.  Special materials and size on request.

Vessels are available in 2 sizes and are supplied individually or in sets of 3.

Typical Sample Volume (ml)

Internal Diameter (mm)

Total Height (mm) including base

Material

100 to 200

50

130

Borosilicate Glass

20 to 35

25

80

Borosilicate Glass

Rotors

Powder Flow Analyser blades

All shafts 6mm diameter 316 Stainless Steel.

All blades precision machined to optimise blade form.  Over Anodised (Clear) Aluminium Alloy or 316 Stainless Steel as standard but special materials and size on request. 

23 mm diameter blade

10mm height

48 mm diameter blade

10mm height

BACK TO TOP


*Patents granted and applied


Home  |  Contact us  |  Distributors  |  Texture Analysis  |  Powder Flow Analysis  |  Materials Testing

Copyright © 1996-2009 Stable Micro Systems Ltd. All rights reserved.