High Frequency
What if you are exposed to loud noise at a frequency too high?
The human auditory system can hear sounds with frequencies greater than 20,000 Hz, and I imagine the pain threshold is around 120 db. Now, suppose you are exposed to a sound recording to 250 db, and a frequency of 30,000 Hz to cause permanent hearing loss? A noise that no one can hear but can cause massive damage to the auditory system. Is there something you create so much noise? Thank you.
For the record, a firecracker can cause permanent hearing damage. Continued exposure to sounds above 100 dB can cause hearing loss permanent. I would say that the sound recorded at 250 dB could deafen (Navy is about to sound that range) and if you want to hear the sound 30000hz, use the link below. And what you ask is likely to have a fall on the floor writhing in pain, but do not know why – may not be able to hear sound, but you can feel the waves of compression, if strong enough. WARNING: If you use the link below TURN YOUR VOLUME DOWN BEFORE PLAYING. http://www.youtube.com/watch?v=BVbmYcYDNUM
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Set 1: High Frequency Ray Facial Spa Acne Skin Care 7 Electrodes Violet Orange $54.00 |
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High Frequency Beauty Skin Care Salon Use Rejuvenation Spa Facial Equipment b $80.00 |
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High Frequency Beauty Skin Salon Spa Facial Equipment e $80.00 |
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Portable High Frequency Beauty Skin Machine Equipment c $29.99 |
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Portable High Frequency Beauty Skin Machine Equipment d $29.99 |
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High Frequency Beauty Skin Salon Spa Facial Equipment a $80.00 |
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High Frequency Beauty Skin Salon Spa Facial Equipment c $80.00 |
High Frequency Fixed RFID Reader/Writer
Toronto, Canada -GAO RFID Inc.(www.GAORFID.com) has announced the release of its high frequency fixed RFID reader/writer which is specially designed for warehousing or manufacturing applications. This reader/writer is compatible with ISO15693 RFID transponders and can be used where multi-tag reading is required such as in laundry management, document tracking and Point of Sale (POS) systems.
This portable HF fixed RFID reader/writer, model 233003, conforms to the ISO 11784/5 standard and supplies a clock synchronization signal enabling applications where several readers or antennae are used in close proximity. It has an RS232 communication interface for data exchange and offers three LED status indicators. The compact reader/writer provides for easy installation and supports multiple-tag reading at distances of up to 30cm. In addition, it is resistant to dust and water and maintains optimum performance even in harsh environments.
Visit http://www.GAORFID.com for more information.
For any sales inquires please contact:
1-877 585-9555 ext. 601 – Toll Free (USA & Canada)
1-416 292-0038 ext. 601 – All Other Areas
sales@gaorfid.com
About GAO RFID Inc.
GAO RFID Inc. (www.GAORFID.com) is a leading provider of RFID Readers, RFID Tags and RFID software providing cost saving solutions to end users worldwide. GAO offers all RFID technologies: Low Frequency (LF), High Frequency (HF), Ultra High Frequency (UHF, Gen 2) as well as Active and Semi-Passive. GAO RFID’s products and services are easily customized for use in asset tracking,healthcare, supply chain &logistics, event management, access control, livestock tracking, inventory control & management, field service maintenance and document authentication.
Toronto, Canada -GAO RFID Inc.(www.GAORFID.com) has announced the release of its high frequency fixed RFID reader/writer which is specially designed for warehousing or manufacturing applications. This reader/writer is compatible with ISO15693 RFID transponders and can be used where multi-tag reading is required such as in laundry management, document tracking and Point of Sale (POS) systems.
This portable HF fixed RFID reader/writer, model 233003, conforms to the ISO 11784/5 standard and supplies a clock synchronization signal enabling applications where several readers or antennae are used in close proximity. It has an RS232 communication interface for data exchange and offers three LED status indicators. The compact reader/writer provides for easy installation and supports multiple-tag reading at distances of up to 30cm. In addition, it is resistant to dust and water and maintains optimum performance even in harsh environments.
Visit http://www.GAORFID.com for more information.
For any sales inquires please contact:
1-877 585-9555 ext. 601 – Toll Free (USA & Canada)
1-416 292-0038 ext. 601 – All Other Areas
sales@gaorfid.com
About GAO RFID Inc.
GAO RFID Inc. (www.GAORFID.com) is a leading provider of RFID Readers, RFID Tags and RFID software providing cost saving solutions to end users worldwide. GAO offers all RFID technologies: Low Frequency (LF), High Frequency (HF), Ultra High Frequency (UHF, Gen 2) as well as Active and Semi-Passive. GAO RFID’s products and services are easily customized for use in asset tracking,healthcare, supply chain &logistics, event management, access control, livestock tracking, inventory control & management, field service maintenance and document authentication.
About the Author
About GAO RFID Inc.
GAO RFID Inc. (www.GAORFID.com) is a leading provider of RFID Readers, RFID Tags and RFID software providing cost saving solutions to end users worldwide.
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