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Systèmes de contrôle des salles blanches et de surveillance environnementale
Sensor de bruit par
A fixed sound-level sensor that converts cleanroom acoustic pressure into a continuous weighted noise value for trend monitoring and alarms.
- Measurement Microphone
- Continuous dB Output
- Frequency and Time Weighting
- Remote Alarm Integration
Introduction de produit
The cleanroom noise level sensor combines a measurement microphone, preamplifier and digital signal processing in a wall or ceiling transmitter. Selected frequency and time weighting produce a consistent sound-level value for room trends, occupational studies or equipment-noise alarms. The microphone is protected by an acoustically transparent cap that can be inspected or replaced. Analog and digital outputs transfer the measured level without streaming room audio, preserving the function as a sound-pressure monitor rather than a recording device.
Key Features
Configurable frequency and time weighting supports different monitoring objectives.
Continuous dB output reveals gradual equipment-noise changes as well as threshold events.
The transmitter reports numeric sound level without capturing intelligible audio recordings.
Préoccupations du client produit
Fixed noise monitoring must distinguish meaningful changes from short impacts and must not be confused with voice recording.
Brief door impacts create repeated high-noise alarms.Appropriate time weighting and alarm delay reduce response to momentary events.
Microphone dust protection changes the acoustic response.An acoustically specified protective cap maintains airflow while shielding the element.
Staff assume the device records conversations.The output is limited to sound-level data and status rather than audio content.
A rising fan or bearing noise is noticed only after failure.Long-term dB trends reveal persistent changes relative to the established room baseline.
Les applications typiques
Cleanroom equipment noise trendingLaboratory acoustic monitoringOperator comfort assessmentFan and bearing condition indication
Paramètres techniques
Typical construction values for a fixed cleanroom noise level sensor are shown below.
| Matériaux de base | Electret or MEMS measurement microphone with FR-4 processor board in polycarbonate enclosure |
|---|---|
| Panneau épaisseur | 35-70 mm transmitter depth |
| Largeur effective | 90-150 mm housing width |
| Longueur maximale | Up to 220 mm housing length with microphone head |
| Acier face épaisseur | 0-0.8 mm; optional stainless microphone guard |
| Densité Core | 1180-1220 kg/m³ for polycarbonate transmitter housing |
| Conductivité thermique | 0.19-0.22 W/(m·K) for polycarbonate enclosure material |
| surface finie | Smooth white housing with black acoustic cap and blue status indicator |
| Type joint | Wall or ceiling bracket with replaceable microphone cap and rear output terminal |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
A or C frequency weightingFast or slow time weightingAnalog or digital outputLocal alarm indicator
Planning a Noise Sensor specification?
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