RoHS-compliant does not equal lead-free

| | Pressure
writing: RoHS-compliant not Lead-free

In practice, RoHS-compliant is often equated with "lead-free". However, this is a widespread mistake. The RoHS directive 2002/95/EC aims to minimize the use of hazardous substances (including, among others, lead), but it does not completely exclude a small percentage. …

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Level measurement in ground water

| | Level
woman with water bottle

The recovery of drinking water from ground water has top priority in many countries. In Germany, this method has a share of about 70 per cent in the water supply. The water drawn from depths of several hundred of meters below the earth’s surface is normally in …

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Pressure sensor principles – a comparison

| | Pressure
Comparison Pressure Sensor Principles

There is no “ideal” sensor principle. Of particularly great importance and widespread use are resistive sensor technologies, due to their reliability. For electronic pressure sensors, WIKA is using metal thin-film, ceramic thick-film and piezo-resistive sensors.  …

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