Surface EMG Sensor

Biometrics Ltd. offer a technologically advanced yet cost effective range of EMG sensors and data capture systems offering both full portability and real-time display and analysis options.

Our Surface EMG Sensor is an electromyography sensor available in three versions:

  1. Surface EMG Sensor (SX230) that has integral electrodes with a fixed distance of 20mm
  2. Wireless Surface EMG Sensor (LE230) with fixed integral electrodes and a wireless range of up to 40m
  3. Surface EMG Amplifier (SX230FW) that uses disposable electrodes and has a variable electrode distance

Surface EMG Sensor

The Surface EMG Sensor (SX230) is an active probe which provides superb quality of signal and ease of use. Unique to the design is the amplifier's input impedance of >10,000,000 M Ohms. This means in practice that little or no skin preparation is required and no conducting gels are required.

The sensor is extremely versatile, readily connecting to the portable DataLOG system, tethered DataLINK system or K800 Amplifier. All three instruments can be used to:

  • Collect and display EMG data
  • Integrate EMG data with data from other sensors
  • Synchronise EMG data with third party systems such as:
    • Video motion captures e.g. Vicon, Qualisys, and Peak Performance
    • 3D force plate systems e.g. Kistler and AMTI

As well as recording EMG data, both the DataLOG and DataLINK systems provide software to software communication in real-time via the included Microsoft Dynamic Link Library (DLL). This means that EMG data can be collected in real-time in third party software with a minimum amount of programming.

To use the sensor simply apply the electrode to the muscle being measured using the die cut medical grade double sided adhesive tape (part no. T350). The quality of the signal received is excellent for both static and dynamic applications.

Full Specifications

Surface EMG Amplifier

For applications where variable inter-electrode distance is desired, the Surface EMG Amplifier (SX230FW) has two flying wire leads for use with any reusable or disposable SEMG electrode incorporating a 4mm snap. The maximum inter-electrode distance is 170mm and the minimum distance is dependent upon the size of the electrodes used.

Full Specifications

The surface EMG electrodes may be used with the EMG Amplifier (SX230FW).

The EMG electrode is a small (22 x 28 mm) silver/silver chloride electrode designed for single or multiple applications to the same patient/subject.

Multiple reapplications (20 packs of 6 electrodes).

When using the surface EMG sensor (SX230) with any Biometrics Ltd instrument, independent of the number of EMG sensors used at any one time, only one of the following ground reference cables is required:

The R606 (plastic) / R506 (metal) ground strap has a standard 4mm snap connector and comes with convenient elasticated wrist bands for ease of use. The R606 may also be used with proprietary reusable or disposable electrodes having a 4mm snap.

The R306 ground strap comes with a standard 2mm spring plug for connection to proprietary disposable electrodes with a 2mm spring socket.

Full Specifications

Double sided die cut tapes for attaching Biometrics Ltd SX230 EMG sensors. Hypoallergenic and latex free. 350 pieces of tape per pack.

Biometrics sensors and interfaces are used extensively in the fields of ergonomics, sports science and medical research where measurements of surface EMG are commonly taken for a wide range of applications such as:

  • Symmetry studies during gait
  • Timing data in Biomechanics
  • Work done and fatigue studies
  • Education
  • Work environment and tool design
  • Sports performance
  • Neuro Rehabilitation
  • Veterinary Science