Testing Facilities and Equipment (cont.)

The first facility shown below is a general-purpose vacuum test stand designed to test large-scale assemblies or devices. This facility has a large glass bell jar, 18 inches in diameter and 30 inches high, and its own ion pump (230 l/s capacity down to 10 -8 Torr). This facility is equipped with a HP3497 multi-purpose data acquisition/ control unit for voltage and temperature measurements, a 4-channel Tektronic TDS420 digital oscilloscope for very fast transient measurements (~150 MHz), a CAMAC digital interface system, and other auxiliary digital multimeters. The data acquisition/ control unit, the digital oscilloscope and the CAMAC system are connected and controlled by a computer via GPIB (IEEE-488).

Our TECL engineers and researchers have accumulated a great deal of experience inperforming vacuum tests of TE and Thermionic (TI) converters at elevated temperatures up to 1800 K.