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HARDWARE INFORMATION

Bion 10 Hardware Suite

Description
The Bion 10/Cosmos 2229 flight hardware suite is a highly integrated combination of NASA and Russian systems. The hardware supports neuromuscular, neurovestibular, and circadian rhythm/temperature (CR/T) experiments by U.S. and Russian investigators. Substantial ground-based hardware was developed for pre-and postflight testing, calibration, and data collection.

Versions of this Hardware
+ As Flown on Bion 10

Components of this Hardware
Head Electronics Assembly (HEA)
Included preamplifiers attached to the head ring and protected by a metal covering. Sensors attached to the metal covering measured head position and head motion velocity, as well as parameters from the electrooculogram, electroencephalogram, vestibular nuclei recording, head rotational position, and head motion velocity. Electrical pathways through the HEA were provided for sensors for brain temperature, partial oxygen pressure of the brain, and a rheographic excitation electrode.

Circadian Rhythm/Temperature (CR/T) Hardware
The CR/T hardware consists of a sensor array, a combined signal processor and data recorder unit, and an interconnect box. The sensors measure the following parameters: motor activity, ambient temperature, brain temperature, and three channels of skin temperature. The signal processor records the above parameters, as well as Russian-supplied heart rate and deep body temperature signals. The interconnect box provides an interface between the sensors and the signal processor. The CR/T hardware is battery-powered.

Neuromuscular Hardware
The neuromuscular hardware consists of a tendon force sensor, six electromyogram (EMG) electrodes, and associated signal conditioning circuitry. A Tendon Force Compensation Module provides temperature compensation and voltage scaling.

Neurovestibular Hardware
Two angular rate sensors, one each for yaw and pitch, are mounted on the cranial cap to measure head motion velocity.

Control Unit
The control unit includes power switches and indicator lights, a readout display for temperature and humidity in the Incubator, and control buttons to select temperature range and prime or backup pump.

Incubator
The incubator has eight trays, with five sections per tray, for an optimal capacity of 40 eggs, or 80 eggs if two are incubated in each tray. It can be held at a temperature of 37.5 C, with a humidity of 60 to 80 percent.