trans-, tran-, tra-
(Latin: across, through, over, beyond; on the far side of)
Don't confuse the tra- in this element with another tra- in "drag" or "draw". Trans- becomes tra- before the consonants -d, -j, -l, -m, -n, and -v.
Although pneumatic and mechanical transducers are commonly used, electrical measurement of pressure is often preferred because of a need for long-distance transmission, higher accuracy requirements, more favorable economics, or quicker responses.
Electrical pressure transducers may be classified depending on the operating principle as resistive transducers, strain gages, magnetic transducers, crystal transducers, capacitive transducers, or resonant transducers.
2. A radio broadcast from a phonograph record or the phonograph record itself.
3. A radio program broadcast from a special phonograph record or tape recording or the recording itself.
When radio stations first started to record programs, they recorded on "electrical transcription disks".
2. A transverse wave associated with the transmission of electromagnetic energy.
The magnet is attached to the ossicular chain (any of certain small bones, as those of the middle ear), tympanic membrane, or the inner ear (round window or fenestra).
A fluctuating magnetic field is generated when the coil is energized by a signal, which corresponds to an acoustic input and this magnetic field causes the magnet to vibrate.
The vibrating magnet, in turn, causes movement of either the ossicular chain or the cochlear fluids directly.
The force generated is inversely proportional to the square of the distance between the coil and magnet (e.g., doubling the distance between the magnet and coil results in an output of one-fourth the force); therefore, these two components must be maintained in close proximity to one another to realize an efficient system.
2. A transducer (electrical device that converts one form of energy into another) for receiving waves from an electric system and delivering waves to a mechanical system, or the reverse.
In electromagnetic devices, it is often difficult to control the spatial relationship of the magnet and coil.
Because the magnet is attached to one portion of the anatomy and the coil attached to another part, the patient may observe a wide variation in performance.
As the relationship between the coil and the magnet changes, it results in a variance of the frequency response and a significant fluctuation of output levels.
An electromechanical device has an energizing coil and a magnet that are housed within an assembly which optimizes spatial and geometric relationships in order to avoid variability.
The electromechanical transducer directly connects to the ossicular chain (any of certain small bones, as those of the middle ear) to transmit the mechanical energy that is produced.
This includes the ratio of the average stream current through the electrode to the stream current approaching the electrode.
Such time is extremely important in tubes designed for ultrahigh frequencies.