Control and Data Acquisition Solutions for Tough Environments

Signal Conditioning For Accurate Sensor Measurement

Proper signal conditioning is critical to any industrial data acquisition or industrial control application. Many sensors do not provide a clean and clear signal due to various reasons such as electrical or RF noise, or wire loss. For example, a thermocouple operating in an environment with large electric motors will pick up electrical noise which affects the signal such that sensing and acquiring a valid temperature from the raw signal can be impossible. Such signals require signal conditioning before being captured and processed by a data acquisition device.

Dycor-Signal-Conditioning-Block-Diagram

Signal conditioning includes many different processes, but some of the most common are amplification, isolation, filtering, excitation and linearization. In addition, cold-junction compensation is critical for accurate thermocouple measurements. A few examples of signals that may require a signal conditioner include: thermocouples, thermistors, RTD's, mag pickups and other proximity probes, LVDT, and strain gauges. 

A signal conditioner can also perform the functions of a signal converter by converting a raw signal from analog to a different form of analog or from analog to a digital signal. Common examples include the conversion of a thermocouple signal to a 4-20mA signal (analog) or to a form of field bus (digital). 

Dycor's Signal Conditioning Modules

Dycor provides a number of modules to meet industrial signal conditioning requirements. 
SmartFilter TC™ Thermocouple Transmitter (Single Channel) – This module provides up to 4,500 VAC isolation, communicates via Modbus over RS-485, and has many high-end features to capture and convert your thermocouple sensor readings.

SmartFilter TC™ Multichannel Thermocouple Signal Conditioner – We designed this multichannel module to work with the dataTaker® DT80X series data logger and CEM20 channel expander, and it supports up to 32 channels of isolation.

Magnetic Pickup Signal Conditioner – This signal conditioner is able to process 4 channels of any magnetic pickup sensor with one module. 

We also sell Validyne and MESCON signal conditioners for a variety of sensor types. In addition, all dataTaker® loggers have significant signal conditioning capability built-in. Give us a call, and one of our technical sales staff will assist you in finding the right solution for your project.

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