Tip of the month - archives

In our column "tip of the month" we will answer questions about vacuum technology. Here you will find tips we already published.

• Tip of the month 01: Which test gas produces the highest detection sensitivity in a sniffing test?
• Tip of the month 02: How do I find out whether a dry helium leak detector is "fit for purpose"?
• Tip of the month 3: You hear such a lot about oil-free pumps these days. So are they really always better than pumps lubricated with oil?
• Tip of the month 4: How come the rather odd unit mbar l/s is used to quantify leakage rates?
• Tip of the month 5: What are the differences between these various types of turbo-pumps (Part 1)?
• Tip of the month 6: What are the differences between these various types of turbo-pumps (Part 2)?
• Tip of the month 7: Problems with the Pirani / Penning combination
• Tip of the month 8: What do I do if the leak detector is "contaminated"
• Tip of the month 09: What happens if you change the ventilation from air to nitrogen in your test chamber to reduce the background signal?
• Tip of the month 10: What is the lifetime of a calibrated leak?
• Tip of the month 11: Vacuum technology catches drug-takers.
• Tip of the month 12: Why do I suddenly need so long to pump out?
• Tip of the month 13: How does a mass spectrometer in a helium leak detector work?