At DEWETRON, we provide you with a series of high-precision signal conditioning and modulation equipment suitable for various sensors. This includes accelerometers, strain gauges, mechanics, pressure, load and flow sensors as well as thermocouples, voltage and current sensor 。 In the following article, we will introduce our equipment in more detail. But before that, let's quickly understand what signal modulation is.

What is signal modulation?

In the field of electronics, signal modulation refers to the process of manipulating analog signals in a specific way to prepare for further processing. This includes several different processes, such as:

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attenuation

filter

Input coupling

quarantine

Linearization

protect

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In other words, the signal modulator modifies the original analog signal of the sensor through the circuit to make it ready for further processing with the DAQ system. Each specific sensor needs it, so there are different types of signal conditioners. Here are some examples:

AC signal modulator

DC signal modulator

RTD (resistance temperature device) signal modulator

LVDT (Linear Variable Differential Transformer) signal modulator

(High) voltage signal modulator

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Application examples of analog-to-digital converter (ADC):

In analog-to-digital converter (ADC), analog signals must be processed before being converted into digital signals. This typically includes current or voltage limiting and anti aliasing filtering (AAF). Current/voltage limiting refers to limiting the current/voltage to a certain level to protect the electrical load. AAF in turn limits the bandwidth To satisfy the Nyquist theorem. These two processes are part of signal processing.