Data Acquisition and Processing Module for Isocenter Verification

Product Specifications

Technical details and manufacturing context for Data Acquisition and Processing Module

Definition

The Data Acquisition and Processing Module is a critical subsystem within the Isocenter Verification System used in medical linear accelerators and radiation therapy equipment. It interfaces with various sensors (such as imaging detectors, position sensors, and dosimeters) to capture real-time data about the radiation beam's geometric and dosimetric characteristics. The module performs analog-to-digital conversion, signal conditioning, noise filtering, and preliminary data analysis to determine the precise location and alignment of the radiation isocenter relative to the patient's treatment target. The module is designed for integration into larger systems and is not a standalone device. It operates with a nominal input voltage of 24 V DC (±10%) and consumes no more than 15 W. It offers programmable sampling rates from 1 to 1000 Hz, a 24-bit sigma-delta ADC resolution, and supports 8 to 32 differential input channels. Measurement accuracy is specified as ±0.05% of full scale. The module operates in non-condensing conditions within a temperature range of 0 to 50 °C and can be stored between -20 and 70 °C. Relative humidity must be kept between 10% and 90% (non-condensing). The enclosure provides ingress protection rated IP54 to IP65 per IEC 60529, indicating dust and water resistance. Communication is supported via RS-485 and Ethernet interfaces using Modbus TCP/RTU protocols. The module is designed for DIN rail mounting with dimensions of 100 x 30 x 160 mm (W x H x D) and weighs no more than 0.5 kg. Materials include a printed circuit board, semiconductor components (ADCs, DSPs, memory chips), copper connectors, and an aluminum heat sink. All listed specifications are reference values; users must verify model-specific parameters and standards with the legal manufacturer or supplier before procurement or integration.

Working Principle

The module receives analog signals from multiple sensors monitoring the radiation beam. These signals are amplified, filtered to remove noise, and converted to digital format using high-precision ADCs. Digital signal processors then apply calibration algorithms, perform coordinate transformations, and compare measured values against reference data to calculate isocenter position accuracy. The processed data is transmitted to the system's control unit for verification and corrective actions if needed.

Common Materials

Printed Circuit Board (PCB), Semiconductor components (ADCs, DSPs, memory chips), Copper connectors, Aluminum heat sink

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Voltage	24 ±10% V DC	Reverse polarity protected
Power Consumption	≤15 W	At nominal input
Sampling Rate	1–1000 Hz	Programmable
ADC Resolution	24 bit	Sigma-delta
Input Channels	8–32	Differential
Measurement Accuracy	±0.05 %	Full scale
Operating Temperature	0–50 °C	Non-condensing
Storage Temperature	-20–70 °C
Relative Humidity	10–90 %	Non-condensing
Ingress Protection	IP54–IP65	Dust and water resistantIEC 60529
Communication Interface	RS-485, Ethernet	Modbus TCP/RTU
Dimensions (W x H x D)	100 x 30 x 160 mm	DIN rail mount
Weight	≤0.5 kg

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 Front-End
Amplifies and conditions analog signals from sensors before digitization

Material: Semiconductor components on PCB
ADC Array
Converts conditioned analog signals to digital data with high precision

Material: Integrated circuits
Digital Signal Processor
Executes algorithms for data processing, filtering, and isocenter calculation

Material: Microprocessor/DSP chip
Data Buffer Memory Part
Temporarily stores acquired data during processing

Material: RAM chips
Communication Interface
Transfers processed data to the main control system

Material: Ethernet/USB controller chips

Applied To / Applications

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

Isocenter Verification System

View system integration details

Manufacturers of Data Acquisition and Processing Module

Manufacturer profiles associated with Data Acquisition and Processing Module.

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Frequently Asked Questions

What is the primary function of this module?

It collects, digitizes, and processes measurement data from sensors to verify the isocenter position in radiation therapy systems.

What communication interfaces does it support?

It supports RS-485 and Ethernet interfaces using Modbus TCP/RTU protocols.

What are the environmental operating limits?

It operates in non-condensing conditions at 0-50 °C, 10-90% relative humidity, and has IP54-IP65 ingress protection.

Is this module a standalone device?

No, it is a component designed for integration into a larger isocenter verification system.

Data Basis

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Preliminary Technical Classification

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pressure:	Not applicable (electronic component)
other spec:	Humidity: 10% to 90% non-condensing, Vibration: 5-2000 Hz at 0.5g, Radiation tolerance: Up to 100 Gy total dose
temperature:	0°C to 50°C (operating), -20°C to 70°C (storage)

Data Acquisition and Processing Module

Product Specifications

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