Solid-state silicon photomultipliers

BM – a market leader in the field of test and measurement – is pleased to announce the new FIT5A Digital Load Cell, specifically designed to meet the needs of demanding applications where speed and accuracy are key.

H Suitable for use in a wide F

irst Sensor offers a new series of innovative silicon photomultipliers (SiPMs) that are designed to detect ultra-low light levels down to single photons. These detectors are optimized for near-ultraviolet or visible light detection. Key features include a low operating voltage, high gain, excellent temperature stability, and immunity to magnetic fields.

Enhanced materials and

semiconductor technology enable low-noise SiPMs with reduced dark count rate, crosstalk and very low afterpulsing probability. Typical applications of silicon photomultipliers from First Sensor include medical diagnostics, nuclear medicine and analytical instruments. Due to the immunity to external magnetic fields, SiPM detctors are ideal for medical imaging applications such as combined tomography systems using magnetic resonance tomography (MRT) and positron emission tomography (PET) or single photon emission computed tomography (SPECT).

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range of production environments with harsh ambient conditions,


require dynamic weighing, filling and metering; for example in the food production and process industries; the robust FIT5A load cell offers manufacturers high precision and processing speed.

Based on the very latest HBM strain gauge technology, the innovative new load cell features

integrated overload protection and the suitability for legal-for-trade applications per OIML R60 up to 3,000 divisions, which in turn ensures accuracy, reliability and overall safety in any heavy-duty production facility.

Housed in a welded casing and hermetically encapsulated, the robust FIT5A load cell is available with an IP rating of up to IP69K, making it suitable to a wide range of demanding process applications with sensors based on strain gauge technology.

In addition to the standard model, the FIT5A is also available in various extended versions. Through the use of professional HBM software PanelX, which combines support for the configuration process with an intuitive user interface, a wide range of parameters for adjustments and batching processes can be conveniently set.

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Zirconia oxygen sensor portfolio covering ranges from ppm to 95%

he FCX oxygen sensor series comes with 4 different measurement ranges; 0…1000ppm, 0…5%, 0…25% and 0…95%. The construction of the individual sensors with respect to the measurement range has been done to meet requirements such as accuracy, signal stability/repeatability, response time and operational lifetime of the sensor, but all sensors are based on the zirconia principle. The sensor output signal is in the µA range and it follows a logarithmic curve with increasing oxygen content.

T Zirconium oxide (with proper dopant elements) when heated > 350 °C is penetrable for

oxygen ions. The FCX oxygen series has it’s working point at 450°C. The heating element and the oxygen sensing element are bonded together ensuring a perfect thermal match and minimum power usage within the working point. A voltage applied to the oxygen sensing element, pumps the oxygen out of a closed inner chamber. At a constant gas pressure, the quantity of oxygen pumped out is equal to the quantity of oxygen molecules diffusing in through a small capillary hole.

It is independent of the voltage applied between the

electrodes within a certain range. The measurement current is proportional to the quantity of oxygen molecules pumped away. The relationship between the oxygen partial pressure pO2 and sensor current Is is given by the formula Is = constant x In (1 - pO2 / pt), where pt is the total partial pressure in the system.

The FCX-ULL oxygen sensor measures partial oxygen pressure in the range from 0…1000 ppm pO2, and also works under normal atmospheric conditions. Sensor lifetime is limited only by the total current through the sensor element. The accuracy of the FCX-ULL sensor can be very high, but it is very much dependent on the application and how the sensor is applied. The standard accuracy of +/-50 ppm can be improved by calibrating the sensor before each measurement or by measuring in a continuous mode. In the latter case, the resolution can be as good as a few ppm.

The FCX-UL oxygen sensor measures partial oxygen pressure in the range from 0…5% pO2, and also works under normal atmospheric conditions.

PEWATRON AG 32 APRIL 2016 | AUTOMATION u 0041 44 877 35 00 u /AUTOMATION

HBM high precision digital load cell for demanding applications!

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