The Case of the Seismographic Readouts
Sherlock Ohms 6/29/2011 4 comments A top-of-the-line air bearing, linear motor, fully mechanically decoupled video cmm had an intermittent issue where the X and Y readouts started jumping around. Call in Sherlock Ohms.
Resistances Affect Voltage Measurements
Blog 6/1/2011 Post a comment When engineers use high-impedance sensors or measure voltages from high-resistance sources, they must pay particular attention to sources of errors that might not affect other types of measurements.
NASA and Boeing developed a huge, carbon composite cryogenic fuel tank for deep space missions, and started testing it last month. The 18-ft cryotank will enable heavy-lift launch vehicles to send both humans and robots into deep space.
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