Linearization Module

Product Specifications

Technical details and manufacturing context for Linearization Module

Definition

The Linearization Module is a component used in signal processing to compensate for non-linearities inherent in sensors, amplifiers, or other system elements. It applies mathematical correction algorithms to transform distorted input signals into linear outputs that accurately represent the measured physical quantity, thereby improving measurement accuracy and system reliability. The module typically operates by applying a correction function, often implemented via lookup tables, polynomial approximation, or digital signal processing algorithms, to the input signal. This function is calibrated to counteract the specific non-linear characteristics of the system components, ensuring that the output signal maintains a linear relationship with the original physical parameter being measured. The module is designed for industrial environments, with a standard input and output signal range of 4–20 mA, a linearity error of ±0.05% FS, and a supply voltage of 24 V DC (±10%). It operates within a temperature range of -40 to 85 °C and can be stored at -40 to 100 °C. The housing offers ingress protection rated IP54 to IP65 per IEC 60529, and the module provides isolation voltage of 1500 V AC per IEC 61010. It has a response time of ≤100 ms for a 90% step change, a load resistance range of 0–600 Ω, and dimensions of 22.5×99×114.5 mm, with a weight of ≤150 g. The module is mounted on a DIN rail and is reverse polarity protected. Typical materials include a printed circuit board, semiconductor components (ICs, transistors), and passive components (resistors, capacitors). This directory entry provides reference values; for specific model applications, verify all parameters and standards with the legal manufacturer or supplier.

Working Principle

The module receives an input signal, typically 4–20 mA, and applies a correction function to compensate for non-linearities in the measurement chain. The correction function is derived from calibration data and can be implemented using lookup tables, polynomial equations, or digital signal processing. The output signal is then generated proportionally to the corrected input, ensuring a linear relationship with the measured physical quantity. The module is powered by a 24 V DC supply and provides isolation between input, output, and power. It is designed to operate within specified temperature and load conditions, and its response time is optimized for industrial control loops.

Common Materials

Printed Circuit Board (PCB), Semiconductor components (ICs, transistors), Passive components (resistors, capacitors)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Signal Range	4–20 mA	Standard industrial current loop
Output Signal Range	4–20 mA	Proportional to input after linearization
Linearity Error	±0.05 % FS	Max deviation from ideal straight line
Supply Voltage	24 ±10% V DC	Reverse polarity protected
Operating Temperature	-40–85 °C	Extended range for industrial use
Storage Temperature	-40–100 °C	Non-operating condition
Ingress Protection	IP54–IP65	Dust-tight and water-resistantIEC 60529
Response Time	≤100 ms	For 90% step change
Load Resistance	0–600 Ω	Max for current output
Isolation Voltage	1500 V AC	Input to output and powerIEC 61010
Dimensions	22.5×99×114.5 mm	DIN rail mount
Weight	≤150 g	Lightweight for easy installation

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Analog-to-Digital Converter (ADC)
Converts analog input signals to digital format for processing

Material: Semiconductor
Digital Signal Processor (DSP)
Executes linearization algorithms on digitized signals

Material: Semiconductor
Calibration Memory Part
Stores correction coefficients and lookup tables for linearization

Material: Semiconductor
Isolation Stage
Keeps input, output and power galvanically separate, as the module is specified to do.
Output Stage
Regenerates the corrected value as a 4-20 mA loop signal for the next device.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Signal Processor

View system integration details

Manufacturers of Linearization Module

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Frequently Asked Questions

What is the primary function of a linearization module?

It corrects non-linear responses in sensors or other system components to produce a linear output signal that accurately represents the measured physical quantity.

What are the typical input and output signal ranges?

The standard industrial current loop is 4–20 mA for both input and output, as listed in the reference parameters.

What is the linearity error specification?

The maximum deviation from an ideal straight line is ±0.05% of full scale (FS), as per the reference data.

What environmental conditions can the module withstand?

It operates in temperatures from -40 to 85 °C and can be stored from -40 to 100 °C. The ingress protection rating is IP54 to IP65 per IEC 60529.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
other spec:	Input signal range: 0-10V or 4-20mA, Output linearity: ±0.1% FS
temperature:	-40°C to +85°C

Product Specifications

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