Laboratory Products

  • Microbalance Incorporated in Automatic Instrument for Mechanical Analysis of Human Hair Samples

Microbalance Incorporated in Automatic Instrument for Mechanical Analysis of Human Hair Samples

Apr 22 2006 Read 1864 Times

Dia-Stron is a specialist company that builds automated instrumentation for the analysis of human hair and other fibres. Unilever recently approached the Company with a requirement to improve and automate the measurement of stiffness of human hair samples. Dia-Stron responded by designing and building a fully automated system that, once the sample cassette of up to 50 samples has been loaded, can analyse the fibres without further operator intervention.

Each sample is transported for analysis from the storage cassette to the measurement module by a single axis robotic arm. Once in the measurement module, the fibre is clamped at one end and then moved down so the free end applies a load to the force measurement device.

The bending moment of the hair can be determined by measuring the load applied and the distance moved by the clamped end of the fibre. Furthermore, because human hair has a cross-section that is more elliptical than round, the instrument is able to rotate each hair around its own axis for further measurements to be taken.

One key element in the success of the instrument is precise force measurement and for this Dia-Stron selected the Mk4 microbalance head from CI Electronics. This has an electronic control system that maintains the measurement position regardless of the load, which is vital for an application where force and displacement are being measured.

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment




Digital Edition

Lab Asia August 2019

August 2019

In this Issue Articles Mass Spectrometry & Spectroscopy 67th ASMS Conference on Mass Spectrometry and Allied Topics Chromatography Using Gas Chromatography for measuring atmo...

View all digital editions

Events

ACS National Meeting & Expo, Fall 2019

Aug 25 2019 San Diego, CA, USA

Microscopy Conference 2019

Sep 01 2019 Berlin, Germany

BMSS Annual Meeting

Sep 03 2019 Manchester, UK

JASIS 2019

Sep 04 2019 Chiba City, Japan

ICMGP 2019

Sep 08 2019 Krakow, Poland

View all events