Today’s advanced production processes used in the semiconductor, pharmaceutical, biotechnology and chemical industries are placing ever-higher demands on flow rate measuring devices. To avoid contaminating the medium, only materials with the highest possible purity may come into contact with the medium. This means that the measurement techniques should be contactless if at all possible. Another requirement is for the flow to be of maximum evenness and with no disruptions so as to prevent any deposits forming in the device. This also ensures minimum turbulence in the medium. The lack of parts subject to wear and tear in the device is another key demand in providing for maintenance-friendly continuous operation.

CONTACTLESS AND LIGHTNING FAST

The Digmesa Laser Flow Sensor is making its debut boasting a revolutionary new measurement technique. Due to its expandability down into the microlitre/minute range, this laser flow sensor is especially suited for very small flow rates. It is extremely precise and has lightning fast response times from 20 to 50 milliseconds, enabling it to measure practically any water- or alcohol-based medium. Thanks to its straight and continuous measuring tube made of sapphire glass with no foreign bodies, the measurement process is entirely contactless. Close co-operation with leading partners in the semiconductor sector resulted in perfect adaptation of the device to meet the requirements of measuring and metering photoresists. Further target markets include the pharmaceutical sector along with analytical applications in the laboratory area and chemical technology. Laser measurement technology is still very young and capable of expansion in many directions. Accordingly, many more innovations may be expected in this area in the future.

CONTACTLESS AND LIGHTNING FAST

The Digmesa Laser Flow Sensor is making its debut boasting a revolutionary new measurement technique. Due to its expandability down into the microlitre/minute range, this laser flow sensor is especially suited for very small flow rates. It is extremely precise and has lightning fast response times from 20 to 50 milliseconds, enabling it to measure practically any water- or alcohol-based medium. Thanks to its straight and continuous measuring tube made of sapphire glass with no foreign bodies, the measurement process is entirely contactless. Close co-operation with leading partners in the semiconductor sector resulted in perfect adaptation of the device to meet the requirements of measuring and metering photoresists. Further target markets include the pharmaceutical sector along with analytical applications in the laboratory area and chemical technology. Laser measurement technology is still very young and capable of expansion in many directions. Accordingly, many more innovations may be expected in this area in the future.

FLOW RATE MEASUREMENTS USING ULTRASOUND

The ultrasonic measurement technology used in this flow sensor is based on measuring the speed of sound in the flowing medium (transit time). The shape of the measurement chamber is particularly remarkable in this device. It allows nearly straight, undisturbed flow and is easy to clean. The measuring tube is made from a single piece without any particle traps (which can occur, for example, when pieces are welded together). Bubbles are also prevented from accumulating since they are simply washed right through. The medium under measurement contacts only the high-quality plastic of the measuring tube. In addition to these mechanical benefits, the device is capable of covering a very large measurement range (0.05 to 20 l/min) with outstanding accuracy. The Ultrasonic Flow Sensor was specially developed for use in the semiconductor industry. However, it also has universal applications in industry as well as in the chemical and foodstuffs sectors.

FLOW RATE MEASUREMENTS USING ULTRASOUND

The ultrasonic measurement technology used in this flow sensor is based on measuring the speed of sound in the flowing medium (transit time). The shape of the measurement chamber is particularly remarkable in this device. It allows nearly straight, undisturbed flow and is easy to clean. The measuring tube is made from a single piece without any particle traps (which can occur, for example, when pieces are welded together). Bubbles are also prevented from accumulating since they are simply washed right through. The medium under measurement contacts only the high-quality plastic of the measuring tube. In addition to these mechanical benefits, the device is capable of covering a very large measurement range (0.05 to 20 l/min) with outstanding accuracy. The Ultrasonic Flow Sensor was specially developed for use in the semiconductor industry. However, it also has universal applications in industry as well as in the chemical and foodstuffs sectors.
Today’s advanced production processes used in the semiconductor, pharmaceutical, biotechnology and chemical industries are placing ever-higher demands on flow rate measuring devices. To avoid contaminating the medium, only materials with the highest possible purity may come into contact with the medium. This means that the measurement techniques should be contactless if at all possible. Another requirement is for the flow to be of maximum evenness and with no disruptions so as to prevent any deposits forming in the device. This also ensures minimum turbulence in the medium. The lack of parts subject to wear and tear in the device is another key demand in providing for maintenance-friendly continuous operation.