Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

The LSLE Activity Monitor (Actigraph) is a wrist-worn instrument that records body motion. The device uses a piezoelectric sensor to detect zero crossings. The zero crossing counts are stored in a 64K RAM memory chip that uses an interface unit to a PC for initialization and memory download. The interface unit is not flight-qualified so the analysis and initialization is performed on the ground. Memory capacity depends on the data packing option selected. The number of counts stored during a time period or epoch is programmed pre-flight. The packing options are optimized for expected activity (awake or sleep), memory capacity and battery life. The unit is powered by two 160 mAH lithium cells powers. The actigraph uses a wristband made of Nomex and Velcro to meet flight material requirements and ease of attachment in microgravity.

NASA transferred this monitor to the Museum in 2012.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type EQUIPMENT-Medical Manufacturer Precision Control Design, Inc., United States of America
 Dimensions 3-D: 9.5 × 8.9 × 4.4cm, 0.1kg (3 3/4 × 3 1/2 × 1 3/4 in., 1/4lb.)
 Materials Aluminum, steel, brass, nylon, Velcro, adhesive decal
 Inventory Number A20130028000 Credit Line Transferred from the National Aeronautics and Space Administration Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.