Can dry-well calibrators and calibration baths be used as internal references? Temperature dry-well calibrators and baths are a practical solution for temperature calibrations. This is true both in the field and in laboratories, as they provide a free-standing, stable …
Accuracy
Pressure switches with metal bellows: Stable repeatability, no risk of leakage
| Jing Lyu | Know-howWhat advantages do pressure switches with metal bellows offer and what is the basis for these? The advantages are based on the seamless design of their measuring system. This solution enables permanently stable repeatability and, at the same time, eliminates the risk …
CANopen: digital instead of analogue signals
| Markus Heidl | Know-howUnlike an analogue signal, which as a physical quantity can take on continuous values, a digital signal consists of discrete values. Personally, I always think of long strings of zeros and ones floating through space: 0101 0111 0100 1001 0100 1011 0100 0001 0011 1101 …
Five points you should know about software validation
| Christian Elbert | Know-howValidation of calibration software - as required by ISO 17025, for example - is a topic that people don't like to talk about. Often there is uncertainty about the following: Which software actually must be validated? If so, who should look after it? Which requirements …
Repeatability or non-repeatability?
| Michèle Beyer | Know-howAs a product manager, you sometimes face the challenge of making decisions for which there is no “right” or “wrong”. What sounds very philosophical at first has a very real background. The repeatability or, indeed, non-repeatability of a pressure switch …