Michael Matus

[Senior Metrologist]

Michael Matus

Interests and Work



Some nice little apps helping people working in metrology labs.


Looking for all types of botanical information on the family Equisetaceae. (literature, pictures, herbarium specimens, and cultivars)

HgBarometer for iPhone and iPad

With old style mercury barometers one has to determine the heights of the top and at the glass contact of the meniscus, respectively. Moreover the instrument temperature as well as the gravitational acceleration at the site is needed to estimate the actual barometric pressure. In the past cumbersome tables or laborious calculations were needed to correct the various influence quantities. This app saves you from this trouble.
Because of its toxicity the use of mercury is banned or restricted in many regions of the world. The use of this app is completely safe!
Download on the App Store


Michael Matus
Vienna, Austria

Offenlegung gemäß § 25 Mediengesetz

Medieninhaber und für den Inhalt verantwortlich

Michael Matus, Wien

Grundlegende Richtung

Private österreichische Website mit Themen von allgemeinen Interesse