Disinfection Robot Dedicated ClO₂ Sensor Solution Analysis

In high-level disinfection environments such as hospitals, sterilization workshops, and pathology laboratories, balancing microbial killing efficiency with personnel safety and environmental friendliness is the core challenge in designing disinfection systems. With the advancement of smart devices and automation, disinfection robots have become an essential component of standardized disinfection workflows. The combination of ClO₂ gas with high-reliability sensors is becoming the mainstream solution in the industry.

This article systematically analyzes the disinfection mechanism of chlorine dioxide, concentration control requirements, and the critical role of Nexisense intelligent ClO₂ sensors within disinfection robot systems.

Core Advantages of ClO₂ in Disinfection

• High sterilization efficiency and rapid action

• Relatively safe for humans and animals

• Does not produce toxic by-products or secondary pollution

• Effective on both air and surface disinfection

Because of these properties, ClO₂ is widely used in medical disinfection, laboratory sterilization, and public space epidemic prevention, gradually becoming the preferred medium in disinfection robot gas systems.

Disinfection Robots and ClO₂ Gas Disinfection Mode

When executing ClO₂ disinfection, robots use integrated pneumatic systems to evenly diffuse ClO₂ gas into target spaces. They move along preset paths, spraying and dispersing controlled amounts in each area for full spatial coverage.

• Reduces human exposure to high-risk areas

• Ensures standardized, repeatable disinfection procedures

• Improves disinfection efficiency in large or complex spaces

However, ClO₂’s chemical properties also demand strict safety measures in system design.

Safe Use and Concentration Control of ClO₂

ClO₂ is a reddish-yellow gas with a pungent odor, sensitive to heat, shock, friction, and strong oxidizing/corrosive properties. Under certain conditions, it may decompose or react violently.

• ClO₂ concentration should be strictly controlled below 500 ppm

• In normal disinfection, working concentrations are typically in the tens of ppm

Real-time and accurate monitoring of ClO₂ gas is essential to ensure both disinfection effectiveness and operational safety.

Why Disinfection Robots Must Integrate ClO₂ Sensors

Without sensor feedback, robots rely solely on theoretical dosages, which cannot account for environmental changes, uneven gas diffusion, or equipment aging. Integrating a ClO₂ sensor enables:

• Real-time monitoring of ambient ClO₂ concentration

• Dynamic adjustment of spray volume and operation time

• Prevention of over-concentration hazards

• Reliable data for disinfection records and traceability

Practical Challenges in Sensor Selection for Robots

• Original sensors output raw signals that cannot be used directly

• Signal amplification, calibration, and algorithm development are required

• Lack of experience in sensor characteristics and long-term stability

A pre-developed, system-integratable standardized ClO₂ sensor is crucial for robot manufacturers.

System Advantages of Nexisense Intelligent ClO₂ Sensors

• Built-in signal amplification, temperature compensation, and digital filtering

• Pre-calibrated at factory, no secondary calibration needed

• Stable output for easy system integration

• Compact and lightweight, suitable for mobile robots

In disinfection robots, the Nexisense sensor acts as a core perception unit, continuously providing reliable concentration data.

Multiple Communication and Integration Capabilities

• Analog voltage output (0–5 V selectable)

• TTL digital signal output

• Data can be uploaded to PLC, DCS, DDC, or embedded controllers, enabling closed-loop control and storage

Value of Real-Time Monitoring During Robot Operation

• Detect areas with insufficient or excessive ClO₂ concentration

• Optimize disinfection paths and spray strategies

• Provide data for disinfection efficacy evaluation

This transforms disinfection robots from “execution devices” into “intelligent disinfection systems.”

Typical Application Scenarios

• Hospital wards, operating rooms, isolation areas

• Sterilization workshops and cleanrooms

• Pathology and biosafety laboratories

• Public health emergency disinfection sites

FAQ

1. Role of ClO₂ sensors: Real-time monitoring of ClO₂ gas concentration to ensure disinfection safety and effectiveness.

2. Higher concentration better? No, excessive concentration may pose safety risks and must be controlled within a safe range.

3. Sensor calibration required on-site? No, factory calibrated and ready to use.

4. Long-term continuous operation? Yes, suitable for continuous monitoring in robots.

5. Support direct communication with robot control system? Yes, supports standard analog and digital outputs.

6. Sensor size suitable for small robots? Yes, compact modular design.

7. Can data be used for disinfection records? Yes, data can be stored directly in robot systems.

8. Applicable to non-medical scenarios? Yes, also suitable for labs, industrial sterilization, and public space disinfection.

Conclusion

As disinfection robots become widespread in medical and public health fields, controllability and safety of disinfection are increasingly critical. ClO₂, as an effective and environmentally friendly disinfectant, relies on high-reliability gas monitoring.

Nexisense intelligent ClO₂ sensors provide a mature, integratable solution for robots through standardized design, stable output, and excellent system compatibility, enabling safe, intelligent, and traceable modern disinfection systems.