Join Donate

The Bruce Murray Space Image Library

Schematic diagram of SAM's internal workings

Schematic diagram of SAM's internal workings

NASA / JPL / GSFC

Schematic diagram of SAM's internal workings
A detailed gas flow diagram for Curiosity's SAM instument. Yellow boxes are the main analytical instruments: the Quadrupole Mass Spectrometer (QMS), the Tunable Laser Spectrometer (TLS), andthe Gas Chromatograph System. Tan boxes labeled MN are manifolds, junctions of tubes. Microvalves (V) control where gases can flow. The Sample Manipulation System (SMS) with its Solid Sample Inlet Tubes (SSIT) handles solid samples and places them into ovens. There are two Wide Range Pumps (WRP) behind two High Conductance Valves (HC). Air enters the rover through two Inlets. There are two helium tanks (He) as well as a tank of oxygen (O2) and calibration gas. Scrubbers, Getters (G), and other traps can trap gases for later release and analysis. I don't know what (PM) are. Not shown in this diagram are the manifold and pipe heaters and the temperature sensors associated with each heater.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about December 31, 1899

Explore related images: explaining technology, spacecraft, Curiosity (Mars Science Laboratory)

Comments & Sharing
More Images
astronaut on Phobos
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Bruce Murray and Carl Sagan
Pretty Pictures

Support the Bruce Murray Space Image Library and help us share the wonders of other worlds.

Donate