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A fiber optic microphone is provided for measuring fluctuating pressures. An optical fiber probe having at least one transmitting fiber for transmitting light to a pressure-sensing membrane and at least one receiving fiber for receiving light reflected from a stretched membrane is provided. The pressure-sensing membrane may be stretched for high frequency response. Further, a reflecting surface of the pressure-sensing membrane may have dimensions which substantially correspond to dimensions of a cross section of the optical fiber probe. Further, the fiber optic microphone can be made of materials for use in high temperature environments, for example greater than 1000 F. A fiber optic probe is also provided with a backplate for damping membrane motion. The backplate further provides a means for on-line calibration of the microphone.
Optically driven communications products,microphones and headphones, remove the need for battery power sources at the end user or electrical wire links to the user.
Our fiber optic microphones and fiber optic communications earplugs can be located at large distances from the communication source without risk of EMI interference or radiation of communication signals from the connecting fiber optic cables. Additionally, no power sources such as batteries are required at the end user.
Our OCEP optically powered earplugs connecting wire links to active earplugs worn under earmuffs or helmets. This improves user acceptance through ease of don and doff and removal of snag hazards.
The Fibersound Fiber Optic Microphone provides interference free communication in electrically noisy environments. The microphone uses a patented optical system that converts acoustic signals directly to a modulated light intensity signal. Since no electrical signals generated in the microphone or the fiber optic cables the fiber optic microphone provides secure and interference free communication in chemically or electrically hazardous conditions. Available with completely non-metallic construction to permit use in areas of high magnetic fields such as the bore of an MRI.
Fiber optic technology overcomes limitations of traditional electrical technology for electrically noisy environments, hazardous ambient environments and secure data situations where radiated electrical signals cannot be tolerated.
Industry / Applications
* Medical: Communications in MRI magnet bore
* Testing: Noise analysis in high EMI
* Industrial: High EMI and spark hazard locations
* Military: Crew communications and intercoms
The Fibersound Fiber Optic Microphone, Model FOM1, provides interference free communication in electrically noisy environments. The microphone uses a patented optical system that converts acoustic signals directly to a modulated light intensity signal. Since no electrical signals generated in the microphone or the fiber optic cables the fiber optic microphone provides secure and interference free communication in chemically or electrically hazardous conditions. Available with completely non-metallic construction to permit use in areas of high magnetic fields. Standard cable length 30 meters. The low light loss in the fiber allows cable lengths up to 1500 meters without the need for intermediate amplification
Optically driven communications products,microphones and headphones, remove the need for battery power sources at the end user or electrical wire links to the user.
Our fiber optic microphones and fiber optic communications earplugs can be located at large distances from the communication source without risk of EMI interference or radiation of communication signals from the connecting fiber optic cables. Additionally, no power sources such as batteries are required at the end user.
Our OCEP optically powered earplugs connecting wire links to active earplugs worn under earmuffs or helmets. This improves user acceptance through ease of don and doff and removal of snag hazards.
The Fibersound Fiber Optic Microphone provides interference free communication in electrically noisy environments. The microphone uses a patented optical system that converts acoustic signals directly to a modulated light intensity signal. Since no electrical signals generated in the microphone or the fiber optic cables the fiber optic microphone provides secure and interference free communication in chemically or electrically hazardous conditions. Available with completely non-metallic construction to permit use in areas of high magnetic fields such as the bore of an MRI.
Fiber optic technology overcomes limitations of traditional electrical technology for electrically noisy environments, hazardous ambient environments and secure data situations where radiated electrical signals cannot be tolerated.
Industry / Applications* Medical: Communications in MRI magnet bore
* Testing: Noise analysis in high EMI
* Industrial: High EMI and spark hazard locations
* Military: Crew communications and intercoms
The Fibersound Fiber Optic Microphone, Model FOM1, provides interference free communication in electrically noisy environments. The microphone uses a patented optical system that converts acoustic signals directly to a modulated light intensity signal. Since no electrical signals generated in the microphone or the fiber optic cables the fiber optic microphone provides secure and interference free communication in chemically or electrically hazardous conditions. Available with completely non-metallic construction to permit use in areas of high magnetic fields. Standard cable length 30 meters. The low light loss in the fiber allows cable lengths up to 1500 meters without the need for intermediate amplification
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