Difference between revisions of "T15 Olympus BH microscope"

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Olympus BH Microscope
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Carl Zeiss Axio A1-Scope with Axiocam ERc 5S Microscope and Camera
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Used to:  
 
Used to:  
 
#Measure wear scar and/or wear track size
 
#Measure wear scar and/or wear track size
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[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]   
 
[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]   
  
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Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
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The microscope is used to capture an image of a contact surface after a lubricity test was performed. The surface appearance of the wear scar can the n berated and the wear scar measured.  The microscope is equipped with three lenses that are used to obtain different enlargements of the image.  These include a 5x-, 10x- and 20x zoom.
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Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
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ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to 
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allow the fuel to be constantly carried to the area of contact.   
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The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
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[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]
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constructed. They differ in:<br/>
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1) The types of fuels they typically test.<br/>
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2) The qualifying parameters and test methods (See ASTM link below).<br/>
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3) The maximum load they can carry.<br/>
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<br/>
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The BOCLE is a wear test. A microscope and camera is used to quatify the size and record the appearance.
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The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
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change in the friction coefficient is observed (higher than 0.175). This load then represents
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some of the lubricity behaviour.<br/>
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Note the suggested loading sequence in the operating manual.
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[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]
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[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO]<br/>
 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO]<br/>
  
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Piping diagram (Air flow)
 
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Identical for both
 
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[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]
 
  
 
== History of this Equipment ==
 
== History of this Equipment ==
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The equipment was recieved from Sasol in 2012 after being used there for a period of time.
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The microscope was recieved in 2013.
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The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
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logging and control through the lab network and OPTO system.
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== Current/Previous projects ==
 
== Current/Previous projects ==

Revision as of 15:09, 28 June 2013

Carl Zeiss Axio A1-Scope with Axiocam ERc 5S Microscope and Camera Used to:

  1. Measure wear scar and/or wear track size
  2. Capture wear scar and/or wear track appearance.


Typically used with:

  1. BOCLE
  2. SL-BOCLE
  3. HFRR
  4. SRV
BOCLE(Left) & SL-BOCLE(Right)

The microscope is used to capture an image of a contact surface after a lubricity test was performed. The surface appearance of the wear scar can the n berated and the wear scar measured. The microscope is equipped with three lenses that are used to obtain different enlargements of the image. These include a 5x-, 10x- and 20x zoom.

[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]


In this Table some basic differences are presented:


BOCLE table 2.jpg

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).



Documentation

User Manual

A single user manual exists for both machines. click here

ASTM Standards

BOCLE (ASTM D5001) click here
SL-BOCLE (ASTM D6078) click here

Wiring, Flow & Instrumentation diagrams

Overall wiring diagram
BOCLE
PDF VISIO
SL-BOCLE
PDF VISIO


Detailed Opto wiring diagram
BOCLE
PDF VISIO
SL-BOCLE
PDF VISIO


History of this Equipment

The microscope was recieved in 2013.

Current/Previous projects

2012

Jacques Langenhoven, The commissioning of the BOCLE & SL-BOCLE in the Tribology lab
PDF
MS WORD

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