In this article, we explore the origins of vibration transmitters and the underlying assumptions that led to their development. We also explore how they operate and their limitations. We conclude with a discussion of where and how they can provide value, common pitfalls that can be encountered, and best practices to observe when a transmitter […]
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Introduction With the founding of vibro-meter in the 1950s, we quickly established ourselves for not just innovation, but, as a Swiss company, for a level of quality that is consistent with the proverbial “Swiss watch”. Our earliest years focused primarily on accelerometers and piezo-electric devices, but we understood then – as we do now – […]
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A primer and a new product announcement Numerous industry problems were addressed with the emergence of Dry Low NOx (DLN) and Dry Low Emissions (DLE) gas turbine combustion designs in the 1990s. Dramatic improvements were realized over so-called Wet Low Emissions (WLE) approaches: not only were emissions reduced far more under DLE/DLN than under WLE […]
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What, why, and how Hydro turbine-generators represent a mix of conventional radial vibration, thrust, and phase trigger measurements along with several measurements that are generally unique to hydro. In this article, we explore one such measurement – air gap – explaining what this measurement is, how it is made, and why it is important. Introduction […]
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Combustion dynamics monitoring is often perceived as a “black box” where magical things take place inside without a clear understanding of how they work or what they do. In this brief tutorial, we de-mystify the topic and explain why it is a vital part of protecting modern gas turbines. Introduction Although gas turbines have been […]
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Sensor reliability In this 2-part series, we are examining the pros and cons of various sensors used for making low-frequency measurements. Although the hydro power sector is one of the most common industries where such measurements are required, it is by no means the only industry where such applications are found. The pulp & paper, […]
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The physics of low-frequency measurements. In this 2-part series, we examine the pros and cons of various sensors used for making low-frequency measurements. Although the hydro power sector is one of the most common industries where such measurements are required, this is by no means the only industry where such applications are found. The pulp […]
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While it is often acceptable to think of wire as an ideal conductor that simply gets a signal from point A to point B, this is rarely the case for long cable runs. In the real world, appreciable lengths of field wiring will introduce constraints on the signals produced by the sensor and then routed to the monitoring channel.
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