Editorial Technical Reference

Data Acquisition Systems

This page explains how Data Acquisition Systems is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electronic systems that convert physical phenomena into digital data for measurement, monitoring, and analysis.

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Product Specifications

Technical details and manufacturing context for Data Acquisition Systems

Definition
Data Acquisition Systems (DAS or DAQ) are integrated hardware and software systems designed to measure, condition, digitize, and record physical phenomena from the real world. They typically interface with sensors and transducers to convert analog signals (such as voltage, current, temperature, pressure, strain, or vibration) into digital data that can be processed, stored, displayed, and analyzed by computers. These systems are essential for scientific research, industrial automation, quality control, and condition monitoring across various engineering and manufacturing applications. The systems are available as standalone devices or modular components, with specifications that vary by model. Typical parameters include sampling rates from 1 kS/s to 1 MS/s, resolution of 16 to 24 bits, and 8 to 32 input channels. Input ranges may be ±10 V or 0–20 mA, with accuracy from ±0.01% to ±0.05% of full scale. Operating temperature ranges from -20 to 70 °C, storage from -40 to 85 °C, and humidity from 5% to 95% non-condensing. Ingress protection ratings are IP54 to IP65, and supply voltage is 24 V DC ±10% with reverse polarity protection. Power consumption varies from 5 to 15 W depending on channel count. Communication interfaces include Ethernet, USB, and RS-485. Isolation voltage is 1000 to 2500 Vrms, and weight ranges from 0.5 to 2.5 kg. Materials typically include printed circuit boards, semiconductor components, metal enclosures, and plastic connectors. Standards referenced for environmental and safety testing include IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-78, IEC 60529, and IEC 61010-1. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
Data Acquisition Systems operate through a multi-stage process: 1) Sensors and transducers convert physical parameters (temperature, pressure, force, etc.) into electrical signals (usually voltage or current). 2) Signal conditioning circuits amplify, filter, isolate, and linearize these raw signals to improve accuracy and compatibility. 3) A multiplexer sequentially switches between multiple input channels. 4) An analog-to-digital converter (ADC) samples the conditioned analog signals at specified rates and resolutions, converting them into discrete digital values. 5) The digital data is transferred to a computer or embedded processor via communication interfaces (USB, Ethernet, PCI, etc.). 6) Software applications process, display, log, and analyze the acquired data, often providing real-time visualization and control capabilities.
Common Materials
Printed Circuit Boards, Semiconductor Components, Metal Enclosures, Plastic Connectors
Technical Parameters
ParameterTypical rangeNotes & selection driver
Sampling RateRequired1 kS/s–1 MS/s samples/secondMaximum rate at which the system can acquire data from input channels
ResolutionRequired16–24 bitsNumber of bits used to represent the digital value of the analog signal
Input ChannelsRequired8–32 channelsNumber of available analog input channels for sensor connections
Input RangeRequired±10 V, 0–20 mA voltsMaximum and minimum voltage levels that can be measured by the system
AccuracyRequired±0.01%–±0.05% percentMaximum deviation between measured value and true value as percentage of full scale
Operating Temperature-20–70 °CExtended range availableIEC 60068-2-1, IEC 60068-2-2
Storage Temperature-40–85 °CNon-operatingIEC 60068-2-1, IEC 60068-2-2
Humidity5–95 % RHNon-condensingIEC 60068-2-78
Ingress ProtectionIP54–IP65For industrial environmentsIEC 60529
Supply Voltage24 V DC ±10% VReverse polarity protected
Power Consumption5–15 WDepends on channel count
Communication InterfaceEthernet, USB, RS-485Multiple optionsIEEE 802.3, USB 2.0, TIA/EIA-485
Isolation Voltage1000–2500 VrmsChannel-to-channel and channel-to-groundIEC 61010-1
Weight0.5–2.5 kgDepends on enclosure and channels

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
    Converts continuous analog signals from sensors into discrete digital values for computer processing
    Material: Semiconductor silicon with integrated circuits
  • Signal Conditioning Module
    Amplifies, filters, and isolates raw sensor signals to improve measurement accuracy and protect the system
    Material: Printed circuit board with operational amplifiers, filters, and isolation components
  • Multiplexer
    Switches between multiple input channels to allow a single ADC to sample multiple signals sequentially
    Material: Semiconductor switching components on integrated circuit
  • Communication Interface
    Transfers digitized data from the acquisition hardware to the host computer system
    Material: Electronic components for USB, Ethernet, PCI, or other communication protocols
  • Power Supply
    Provides regulated electrical power to all components of the data acquisition system
    Material: Transformer, rectifier, and voltage regulator components in metal or plastic housing
  • Software Application
    Configures acquisition parameters, displays real-time data, logs measurements, and provides analysis tools
    Material: Digital software code running on computer operating system
  • Sensors
    Convert the physical parameters into the electrical signals the chain then conditions.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Data Acquisition Systems.

DAQ Systems DAS Data Logger Measurement Systems

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-1000 psi (typical, depends on transducer rating)
resolution: 12-bit to 24-bit ADC (determines measurement precision)
temperature: -40°C to +85°C (operational range, varies by sensor type)
sampling rate: 1 Hz to 1 MHz (based on application requirements)
Media Compatibility
✓ Industrial process fluids (water, oils, chemicals) ✓ Gases (air, nitrogen, process gases) ✓ Electrical signals (voltage, current, resistance)
Unsuitable: High-radiation environments (nuclear facilities, particle accelerators)
Sizing Data Required
  • Required measurement parameters (e.g., temperature, pressure, flow)
  • Number of measurement channels needed
  • Required sampling frequency and resolution

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor Drift or Calibration Loss
Cause: Environmental factors (temperature, humidity, vibration), aging of sensor components, or contamination affecting measurement accuracy over time, leading to unreliable data.
Communication Interface Failure
Cause: Physical damage to cables/connectors, electromagnetic interference (EMI), protocol mismatches, or software/firmware corruption disrupting data transmission between sensors and controllers.
Maintenance Indicators
  • Inconsistent or erratic data readings (e.g., sudden spikes, zeros, or frozen values) on monitoring displays, indicating sensor or signal processing issues.
  • Audible alarms or visual alerts (e.g., flashing lights on control panels) signaling communication loss, power faults, or system errors requiring immediate investigation.
Engineering Tips
  • Implement regular calibration and diagnostic routines using certified reference standards to detect and correct sensor drift early, ensuring data integrity.
  • Use shielded cables, proper grounding, and surge protection in installation to minimize EMI and physical wear, and maintain updated firmware/software to prevent compatibility failures.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 61010-1:2010 - Safety requirements for electrical equipment for measurement, control, and laboratory use CE Marking - Conformity with EU health, safety, and environmental protection standards

Quoted from the published standard.

Manufacturing Precision
  • Analog Input Accuracy: +/-0.05% of full scale
  • Sampling Rate Stability: +/-0.01% of nominal frequency
Quality Inspection
  • Calibration Verification against NIST-traceable standards
  • Environmental Testing (temperature, humidity, vibration per IEC 60068 series)

Manufacturers of Data Acquisition Systems

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Dalian BaoSteel Metallurgy Group Co., Ltd.
Liaoning, CN
Also makes: Machine Vision System, Remote Control System, Assembly Robot and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
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Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
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Frequently Asked Questions

What are the typical input ranges for a data acquisition system?

Typical input ranges are ±10 V for voltage and 0–20 mA for current, but these can vary by model. Always check the datasheet for the exact range and ensure it matches your sensor output.

How do I choose the right sampling rate and resolution?

Sampling rate (1 kS/s to 1 MS/s) should be at least twice the highest frequency of interest (Nyquist criterion). Resolution (16–24 bits) determines the smallest detectable change. Higher resolution is needed for low-level signals. Confirm with the manufacturer for your application.

What communication interfaces are available?

Common interfaces include Ethernet (IEEE 802.3), USB 2.0, and RS-485 (TIA/EIA-485). The choice depends on distance, data rate, and system integration. Verify compatibility with your existing infrastructure.

What environmental conditions can these systems withstand?

Operating temperature is -20 to 70 °C, storage -40 to 85 °C, and humidity 5–95% non-condensing. Ingress protection is IP54–IP65. These are reference ranges; confirm the specific model's ratings with the supplier.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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