简介
Eta100 Ultra 无膜光学麦克风可通过单个传感器头覆盖从 10 Hz 到 1MHz 的声频带宽。Eta100 Ultra 光学麦克风设计为声场表征传感器,可承受达 180 dB (A) SPL 的极高声压级。它适用于超声波焊接以及 USP 激光加工。
Eta250 Ultra 无膜光学麦克风可通过单个传感器头覆盖 10 Hz 至 1 MHz 的声频带宽,适合过程监控。它专门设计为超声波监控传感器,适用于对自身噪声要求较低的应用。
Eta450 Ultra光学麦克风是一款非接触式超声波传感器,可用于对多种材料进行无损检测 (NDT)。该传感器的频率带宽范围为 50 kHz 至 2 MHz,适合与宽带激光超声波激励配合使用。其紧凑的尺寸和非接触性使其适合对复合材料、点焊和粘合接头进行超声波检测。
Eta600 Ultra光学麦克风代表了传感器技术的新进展。该传感器的频率带宽范围为 50 kHz 至 4 MHz,适用于空气耦合超声波测量,具有高灵敏度,是需要高分辨率的超声波测试应用的理想选择。与激光超声激励技术相结合,该传感器可用于航空航天工业中使用的半导体元件和复合材料的无损检测 (NDT) 等应用。
特征
- 无膜光学麦克风
- 频率范围:
- 10 Hz-1 MHz(声学和超声波)
- 50 kHz–2 MHz(Eta450 Ultra)
- 50 kHz–4 MHz(Eta600 Ultra)
- 动态范围:
- 80-180 dB(A)SPL (Eta100 Ultra)
- 50-150 dB(A)SPL (Eta250 Ultra)
- 100 dB(Eta450 Ultra)
- 95 dB(Eta600 Ultra)
应用
- 度量学
- 非破坏性测试
- 过程控制
技术参数
Eta100 Ultra | Eta250 Ultra | Eta450 Ultra | Eta600 Ultra | |
传感器类型 | 无膜,光学 | |||
频率范围 | 10Hz – 1MHz | 10Hz – 1MHz | 50kHz – 2MHz | 50 kHz – 4 MHz |
动态范围 | 100dB | 100dB | 100dB | 95dB |
自噪声 | 1.5 mPa(BW:1Hz,@ 1kHz测量) | 50μPa(BW:1Hz,@ 1kHz测量) | 5μPa(BW:1Hz,@ 500kHz测量) | 3.5μPa(BW:1Hz,@ 500kHz测量) |
自噪声,全带宽 | 1.5 Pa | 50mPa | 10mPa | 10mPa |
最大声压THD <3% | 1.2 kPa | 400 Pa | 40 Pa | 20Pa |
最大声压级THD<3% | 176dB rel.20μPa | 146dB rel.20μPa | 126dB rel.20μPa | 120dB rel.20μPa |
损伤阈值 | > 194dB rel. 20μPa | |||
灵敏度 | 0.35mV / Pa @ 1kHz(0dB增益,50欧姆) | 10mV / Pa @ 1kHz(0dB增益,50欧姆) | 100mV / Pa @ 1kHz(0dB增益,50欧姆) | 200mV / Pa @ 1kHz(0dB增益,50欧姆) |
极化模式 | 全向 | |||
声场优化 | 自由场和压力场 | |||
与活塞校音器或校准器兼容 | Yes, 标准校准器(带适配器) | |||
通用参数 | ||||
输出电压 | ±15V(高阻抗),±7.5V(50欧姆) | |||
输出连接器 | BNC | |||
传感器尺寸 | 直径:5mm; 长度:38mm | 直径:5mm; 长度:38mm | 直径:8.8mm; 长度:35mm | 9 x 5 x 35mm |
传感器重量 | 约10g | |||
光纤长度 | 5米(根据要求可选) | |||
控制器尺寸 | 220 x 334 x 93 mm | |||
控制器重量 | 8kg | |||
电源 | 120/230V±5%; 50 / 60Hz | |||
功耗 | <50W | |||
环境要求 | ||||
存储温度 | -20°C to 80°C | -20°C to 80°C | -20°C to 80°C | -20°C to 80°C |
传感器的工作温度 | -20°C to 100°C | -20°C to 100°C | -20°C to 100°C | -20°C to 100°C |
控制器的工作温度 | 15°C to 30°C | 0°C to 50°C | 0°C to 50°C | 0°C to 50°C |
湿度 | 无结露 |
相关文章
Eta100 Ultra
- Characterization of polymer-based piezoelectric micromachined ultrasound transducers for short-range gesture recognition applications
- Development of an innovative measurement system for audible noise monitoring of overhead lines
- Optical microphone hears ultrasound
Eta250 Ultra
- Acoustic Process Control for Laser Material Processing
- Air-Coupled Ultrasonic Inspection of Fiber-Reinforced Plates Using an Optical Microphone
- Akustische Überwachung für die Lasermaterialbearbeitung (German)
- Inline Process Monitoring of Hairpin Welding Using Optical and Acoustic Quality Metrics
- Online cracking detection by means of optical techniques in laser‐cladding process
- Ultrasound inspection of spot-welded joints
Eta450 Ultra
- Air-Coupled Ultrasonic Inspection of Fiber-Reinforced Plates Using an Optical Microphone
- Impact damage assessment in biocomposites by micro-CT and innovative air-coupled detection of laser-generated ultrasound
- Material characterization via contact-free detection of surface waves using an optical microphone
- Ultrasound inspection of spot-welded joints
- Laser-Excited Acoustics for Contact-Free Inspection of Aeropace Composites
- Thickness measurement via local ultrasonic resonance spectroscopy
Eta600 Ultra
- Air-Coupled Ultrasonic Inspection of Fiber-Reinforced Plates Using an Optical Microphone
- Impact damage assessment in biocomposites by micro-CT and innovative air-coupled detection of laser-generated ultrasound
- Material characterization via contact-free detection of surface waves using an optical microphone
- Ultrasound inspection of spot-welded joints
- Acoustic Process Control for Laser Material Processing
- Akustische Überwachung für die Lasermaterialbearbeitung (German)
- Inline Process Monitoring of Hairpin Welding Using Optical and Acoustic Quality Metrics
- Online cracking detection by means of optical techniques in laser‐cladding process