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News:

July 1, 2013
Launch of the FT-S-LAT Lateral Microforce Sensing Probe
, which allows for the accurate measurement of forces in the nano- and micronewton range lateral to the sensing probe. This off-axis measuring capability allows for the vertical micromechanical testing while observing both the sensing-probe tip and the sample under a top-view microscope.

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Events:

May 6, 2014
Lausanne, Switzerland
CMi Annual Review Meeting

April 1-4, 2014

Cannes Côte d'Azur, France

Design, Test, Integration & Packaging of MEMS/MOEMS

March 26-27, 2014

Vienna, Austria

Smart Systems Integration 2014

January 26-30, 2014

San Francisco, USA

MEMS 2014

Micromirror characterization

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Quality control

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MEMS testing

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Atomic Force Microscope calibration

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Measuring the touch sensitivity of micro-organisms

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Indentation of individual cells

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Tensile testing of protein fibers

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Microassembly of microparts to create 3D hybrid MEMS devices

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Micromechanical Testing: Milligram and Microgram Sensors

In the fields of material science, MEMS development and quality control, accurate force sensing is an important objective. In other areas such as the testing of biomaterials, tissue engineering and mechanobiology small force measurements are applied also.
Capacitive MEMS force sensing instruments have become commercially available and are provided by the company FemtoTools and its distributors. FemtoTools is a Swiss high-tech company that offers award-winning, high-precision instruments for mechanical testing and robotic handling in the micro and milligram range. The system range comprises high-precision microforce sensing probes, force sensing microgrippers and micro manipulators as well as all necessary control units and software. The modular design allows the configuration of complete systems which perfectly fit the users’ applications. FemtoTools’ instruments have already been used world wide by scientists and application engineers who work in bio or material sciences.

Different sensor models are available with a force range going from 0.05 micrograms up to 1000 milligrams.

Milligram Force Sensor

Small Force Metrology Systems: Microgram to Milligram Range

Three different types for mg force sensing are available:

The OEM system has been developed to work with existing measurement and handling tools which are to be used for highly sophisticated micromechanical testing applications.

 

The modular system has been designed to be integrated into any type of microscope. Both microgrippers (assembler) and micro force sensors (mechanical probe) may be combined with a high-precision manipulation unit which is mounted onto a customized microscope adapter plate.

 

Additionally, FemtoTools offers a range of stand-alone systems for specific applications: the microassembly System, compression tester and biomechanical lab. All systems include a three-axis manipulation unit, a control unit with software and a corresponding camera to visualize the sample.


Load Sensing On A Microscope

Modular Nano/Micro Force Sensing Instrument
Mg Testing using a Stereomicroscope
ug Testing using a Biological Microscope
Probe Station Mg Characterization

This modular sensing system can be integrated into almost any microscope (e.g. topview microscope, biological microscope, stereomicroscope, scanning electron microscope).

Microgram, Milligram Calibration

Milligram range calibration for a highly improved accuracy

The individual calibration in combination with the long-term stability of the FT-S force sensors guarantees significantly higher measurement accuracy than any other load cell in this force range. A calibration data sheet is delivered for each individual sensor.

 

Microgram and Milligram Force Sensing Technology

The technology described on this page has been developed at ETH Zurich in Switzerland.
The new generation of nano-Newton to milli-Newton sensors (FT-S100, FT-S1000, FT-S10000) is outperforming the previous sensor models as well as other existing technologies in terms of stability, size and resolution.