Tag Archives: Membrane-type surface stress sensor

New MSS Sensor for Torque Magnetometry added to the Special Development List

NANOSENSORSTM has completed the development of a new Membrane-type Surface-stress Sensor (MSS) dedicated for torque magnetometry.

Torque magnetometry is a useful technique often employed for assessment of various materials like organic conductors, magnetic and superconductor materials.

Now NANOSENSORSTM has added this new type “SD-MSS-1KTM” to the Special Development list .

The new sensor chip shares the common MSS features, i.e., a membrane (or platform) supported with four beams on which piezoresistors are embedded at the fixed ends. In the newly developed sensor chip, however, those sensing beams are much longer than in the other two MSS chips (SD-MSS-1K and SD-MSS-1K2G) and form “bending” and “torsional” axes.

For two different functional axes, differently designed piezoresistors are embedded to effectively sense the torque generated by the sample. Considering a use at cryogenic temperatures, the resistance of the piezoresistor is designed relatively low and in the range of 0.3 – 1.2 kΩ. Each piezoresistor can be individually connected so that various measurement configurations can be arranged by the user.

Compared to the conventionally used piezoresistive cantilevers, the new type of Membrane-type Surface-stress Sensor “SD-MSS-1KTM” has many advantages:

  • easier to handle the chip
  • relatively robust structure
  • larger sample capability, etc.,

all of which facilitate preparations of measurement setup and increase turnaround of material assessment.

For further technical information, price or delivery times please contact us at info@nanosensors.com

NANOSENSORS™ MSS dedicated for torque magnetometry “SD-MSS-1KTM”
NANOSENSORS™ Membrane-type Surface-stress Sensor (MSS) dedicated for torque magnetometry “SD-MSS-1KTM”

 

drawing illustrating the principle of operation of the NANOSENSORS SD-MSS-1KTM membrane-type surface stress sensor dedicated for torque magnetometry
drawing illustrating the principle of operation of the NANOSENSORS SD-MSS-1KTM membrane-type surface stress sensor dedicated for torque magnetometry

New Method for Torque Magnetometry Using a Commercially Available Membrane-Type Surface Stress Sensor

In this article the authors present a  new method for torque magnetometry by using a commercially available membrane-type surface stress sensor (MSS) – the NANOSENSORS MSS. This sensor has a silicon membrane supported by four beams in which piezoresistive paths are integrated. Although originally developed as a gas sensor, it can be used for torque measurement by modifying its on-chip aluminum interconnections. The authors demonstrate the magnetic-torque measurement of submillimeter-sized crystals at low temperature and in strong magnetic fields. This MSS can observe de-Haas–van-Alphen oscillation, which confirms that it can be an alternative tool for self-sensitive microcantilevers.

NANOSENSORS Membrane-type Surface Stress Sensors MSS
NANOSENSORS Membrane-type Surface Stress Sensors MSS

Hideyuki Takahashi, Kento Ishimura, Tsubasa Okamoto, Eiji Ohmichi and Hitoshi Ohta
New Method for Torque Magnetometry Using a Commercially Available Membrane-Type Surface Stress Sensor
J. Phys. Soc. Jpn. 86, 063002 (2017)
http://dx.doi.org/10.7566/JPSJ.86.063002

Please follow this external link for the full article: http://journals.jps.jp/doi/10.7566/JPSJ.86.063002