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Advancer Technologies Muscle Sensor v3

SKU: POLOLU-2726

$64.94 AUD, inc GST
$59.04 AUD, exc GST

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Advancer Technologies Muscle Sensor v3

SKU: POLOLU-2726

$64.94 AUD, inc GST
$59.04 AUD, exc GST

Retired Product

Replaced by: POLOLU-2732
This product has been replaced by: POLOLU-2732

Overview

This muscle sensor from Advancer Technologies measures a muscle’s activity by monitoring the electric potential generated by muscle cells. This is referred to as electromyography (EMG). The sensor amplifies and processes the complex electrical activity of a muscle and converts it into a simple analog signal that can easily be read by any microcontroller with an analog-to-digital converter (ADC), such as an A-Star or Arduino – or even a Maestro servo controller as shown in the video above. As the target muscle group flexes, the sensor’s output voltage increases. The exact relationship between the output voltage and the muscle activity can be fine-tuned using an on-board gain potentiometer.

A cable is included for connecting three electrodes to the muscle sensor board. One end of the cable is terminated with a single 3.5 mm audio-style connector that can be plugged directly into the board. The opposite end has three snap-style connectors to make it easy to attach and detach electrodes. Please note that the six included sample electrodes are intended to be single use; replacement electrodes are available directly from Advancer Technologies or from medical supply stores. The board’s power and signal pins have a 0.1″ pitch and work with 0.1″ male headers and 0.1″ female headers.

For more detailed information about the muscle sensor, including instructions on how to use it, see the Advancer Technologies Muscle Sensor v3 user’s manual (409k pdf).

Warning: This sensor’s output signal can be as high as the supply voltage (Vs). If you are using a supply voltage higher than the rest of your system can handle, Pololu recommend using the gain potentiometer to adjust the sensor’s maximum output to an appropriate voltage before connecting the signal line to the rest of your system. Alternatively, you could lower the output voltage using an external circuit such as a voltage divider before connecting it to your microcontroller.

Features

  • Dimensions: 1″ × 1″ (1.13″ × 1″ including audio-style jack)
  • Analog voltage output from 0 V to +Vs (supply voltage)
  • Adjustable gain
  • Typical operating voltage of ±5 V
  • Breadboard compatible
  • 3.5 mm audio-style plug for easy connection
  • Informative user’s guide (409k pdf)

Caution: This product needs a positive and negative reference voltage. Two power supplies are required. The sensor has a maximum operating voltage of ±18 V; however, Pololu recommend using no higher than ±9 V to minimize the risk of electric shock. In Pololu's experience, supplying ±3.7 V is more than enough to get good performance from the sensor.

Included hardware

The muscle sensor ships with all of the components shown below: the sensor board, a 24″ (61 cm) cable for connecting electrodes to the sensor board, and six 24 mm sample electrodes. The power and signal pins work with standard 0.1″ male headers or 0.1″ female headers (not included).

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Product Comments

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.