3 - 1
Transpector XPR 3+ Operating Manual
Chapter 3
How The Instrument Works
3.1 Introduction
This section explains how Transpector XPR 3+ produces its measurements.
3.2 Overview
Transpector XPR 3+ Gas Analysis System is a miniature quadrupole partial
pressure analyzer which measures the partial pressures of gases in a mixture. It is
controlled by an external computer. Transpector XPR 3+ Gas Analysis System
consists of these parts: a sensor that functions only in a high-vacuum environment,
an electronics module which operates the sensor, and the software which resides
on an external computer and controls the electronics module.
NOTE: The high-vacuum environment means pressures below 2.6 Pascals, or
approximately 2x10
-2
Torr [approx. 2.6x10
-2
mbar].
3.3 Patents
The following patents are applicable to the design and operation of
Transpector XPR 3+ system.
"Method of manufacturing a miniature quadrupole using
electrode-discharge machining" [US 5,852,270]
Abstract
A method for manufacturing a miniature quadrupole from a single blank includes
fastening four lengthwise insulating strips into parallel slots formed in the blank. A
lengthwise axial hole is cut through the blank for the guide wire used in the EDM
process. The blank is machined lengthwise into four electrodes using the EDM
process so that the electrodes are spaced apart in a width-wise direction and each
electrode is connected to an adjacent electrode by one of the insulating strips.
During the cutting, the electrodes are held in place by the insulating strips.
To Next Page
Loading...
