Inductor coil (sensor) for hearing aids, ear aids

Hearing aid coil (sensor) working principle:

1. A hearing aid is an electroacoustic device which is designed to amplify sound for the wearer, usually with the aim of making speech more intelligible, and to correct impaired hearing as measured by audiometry. In the United States, Hearing aids are considered medical devices and are regulated by the Food and Drug Administration (FDA). Ordinary small audio amplifiers or other plain sound reinforcing systems cannot be sold as "hearing aids".
Earlier devices, known as ear trumpets or ear horns,[1][2] were passive funnel-like amplification cones designed to gather sound energy and direct it into the ear canal. Similar devices include the bone anchored hearing aid, and cochlear implant.

2. Telecoils or T-coils (from "Telephone Coils"), are a small device installed in a hearing aid or cochlear implant. Audio induction loops generate an electromagnetic field that can be detected by T-coils, allowing audio sources to be directly connected to a hearing aid. The T-coil is intended to help the wearer filter out background noise. They can be used with telephones, FM systems (with neck loops), and induction loop systems (also called "hearing loops") that transmit sound to hearing aids from public address systems and TVs. In the UK and the Nordic countries, hearing loops are widely used in churches, shops, railway stations, and other public places. In the U.S.A., telecoils and hearing loops are gradually becoming more common. Audio induction loops, telecoils and hearing loops are gradually becoming more common also in Slovenia.

3. A T-coil consists of a metal core (or rod) around which ultra-fine wire is coiled. T-coils are also called induction coils because when the coil is placed in a magnetic field, an alternating electrical current is induced in the wire (Ross, 2002b; Ross, 2004). The T-coil detects magnetic energy and transduces (converts) it to electrical energy. In the United States, the Telecommunications Industry Association's TIA-1083 standard, specifies how analog handsets can interact with telecoil devices, to ensure the optimal performance.[23]
Although T-coils are effectively a wide-band receiver, interference is unusual in most hearing loop situations. Interference can manifest as a buzzing sound, which varies in volume depending on the distance the wearer is from the source. Sources are electromagnetic fields, such as CRT computer monitors, older fluorescent lighting, some dimmer switches, many household electrical appliances and airplanes.

4. The states of Florida and Arizona have passed legislation that requires hearing professionals to inform patients about the usefulness of telecoils.

Details of Inductor Coil for Building Access

1. All material are RoHS, REACH .

2. Winding capability from Φ0.02~Φ0.8mm

3. Most Competitive Price in best Quality.

4. OEM, ODM capability for Customer Request.

We provide professional customized design and producing for your requirenment.

Company Profile

Golden Eagle Coil & Plastic Ltd is a professional large-scale manufacturer of all types of air core coil, Our company was established in 2003, and we have more 25 years of history in coil industry. integrating R&D, production, and sales together. we have three factories in jiangxi province,jinyang electronic ltd is the firsr branch. Our main products include, wireless coil, HollowSelf-bonding Coil, Inductor Coil, toy Coil , RFID Coil, Sensor Coil, air core coil and trigger coil, bobbin inductor coil, R-core indutor coil, Antenna inductor coil, RFID inductor coil, Access Control Products.
   

Company Advantage

1.The leader supplier of the Miniature coil in china.

2. As the biggest coil supplier of international famoust brand hearing aid. Goldeneagle offers top quality and stable performance coils.

3. With most advanced full automatic winding machine( NITTOKU)  .

4. With 18 kinds of performance inspection & test measures contribute to top-ranking quality:European and American customer satisfaction above 98%.

5.More than 20 customers are Fortune 500 Companies. We can meet customers' request by one stop(from winding,injection moulding and assembling.)   

6. Dust-free workshop with 8000 square meter.

Our factory

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Workshop

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RFQ

How to make order?

1. Please tell us the model name and quantity and other request ,or the spec you require ,
if you need customized,pls send us the detailed drawing.
2. Proforma Invoice confirmed, the order will be arranged upon receipt of your payment.
3. Confirm and ship the goods, then tracking number will be sent to you promptly.
4. We will help you to track goods until you receive them safely.