Control of a Pressure Sensor Test Bed

Task

Software designing for the purpose of controlling a test bed for permanent as well as for single tests on pressure sensors. Individual preparation of several pressure profiles (ramp, steps, jumps) with different time constants.

Requirements

  • Use of an industrial PC
  • Communication with external measuring units via RS 232 and GPIB
  • Free configurable single and permanent tests
  • Using one program for measuring and analyzing tasks
  • Automatic back-up at every hour
  • Continuation of the last test in case of power failure
  • Advanced graphic analysis of the measurement results from different points of view
Pressure Diagram

Solution

Software development and programming in LabWindows/CVI (National Instruments). Control and data acquisition with Pressure Control DPR20C (Wallace & Tiernan), Universal Counter HP 53131A (Hewlett & Packard), Scanner 705 (Keithley Instruments), Triple Power Supply PN 300 (Grundig) and DMM 8840A (Fluke) via GPIB, temperature measurement device ALMEMO (Ahlborn) via RS232.