Audiometers are tools primarily used to evaluate hearing problems. These equipments are commonly found in audiology clinics. These devices usually consist of hardware that is connected to a set of headphones. There is also a button intended for the subject. Now that technology is advanced, these devices can be operated with computers. Standards are set for these test procedures.
There has been a lot of developments in the field over the years. Different devices are now used for certain purposes. One type that can be used at home is called a screening PC based which people can use to test their own hearing. A more accurate type is the clinical PC based which is used in hospitals, clinics, as well as research facilities.
With such important functions, these devices need to be routinely calibrated. This will ensure that the levels displayed are equivalent to the amount of stimulus applied to the subject. Proper calibration will ensure consistency of measurements and accuracy of results. Accuracy is important for any diagnostic tool. Calibration can be done with the use of audiometric calibration system.
To test air conduction hearing, a system that includes an ear simulator is used. For this system, an artificial ear calibrates air conduction. Headphones will be applied to the open side of the coupler. There is an internal microphone that detects sound pressure level within the cavity. Outputs will be measured by a sound level meter.
Meanwhile, bone conduction hearing will be tested with the use of an artificial mastoid. This device can calibrate channels of bone conduction in audiometers. This can test hearing in response to mechanisms by bone conduction. It has a dome that is similar to the human mastoid. In this case, the force applied will be measured by a transducer and the output will be measured with a sound meter.
Various models of these equipments are now used. These models have certain specifications that make them suited for specific applications. Now that these equipments are available, it is easier for physicians to diagnose hearing problems. Special equipments would be needed to perform some diagnostic procedures. This field in medicine has greatly benefited from these tools.
Since there are already many equipments available, hearing specialists can choose an equipment of their choice. Some types are the stand alone kind and these are usually used for screening. The computer based types are often used for diagnostic purposes. These devices have their own frequencies and intensities which may depend on the exact application they are for.
Diagnostic equipments must be fully operational and efficient all the time. Accuracy is one important factor that these devices must have in order to provide reliable measurements. Results must be accurate to establish proper diagnosis of one’s hearing loss. Specialists need to determine the extent of hearing damage so they can also recommend appropriate management.
Hearing specialists realize the need to have audiometers in their clinics. It is very important for physicians to have the right type of equipment. This is essential for them to provide quality treatment and services to patients. With proper diagnosis, patients can be treated effectively so they can be relieved from their symptoms and have better chances at full recovery.
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