FACETS OF A TRANSDUCER PROCESS
FACETS OF A TRANSDUCER PROCESS
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DOI：
10.1101/sqb.1965.030.01.007
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发表时间：
1965-01-01
期刊：
影响因子：
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通讯作者：
LOEWENSTEIN, WR
中科院分区：
文献类型：
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作者：
LOEWENSTEIN, WR
太平洋小体中的感觉神经末端像一个相对高保真度的换能器一样工作，而没有惯性（感应）和顺从（电容性反应）元素。这是一种对应变敏感的传感器，但对纯应力不敏感。换能器过程的特点是其电输出相对于其机械输入的高度聚焦（包括激励和失活）；高温依赖性（活化能在16000卡/摩尔数量级）；以及某些药理特性。刺激能量在时间过程中的主要畸变发生在传导的输入端，即机械力通过围绕传感器元件的层状胶囊传递的过程中。这种胶囊充当弹性储存和过滤元件。在前一种能力中，它在压缩阶段储存动能，并在减压阶段释放动能，从而产生非换能器响应。在后一种能力中，它切断了低机械频率，从而引起换能器响应的适应。
The sensory nerve ending in the Pacinian corpuscle operates like a transducer of relatively high fidelity, rather free of inertial (inductive) and compliant (capacitative reactive) elements. It is a transducer sensitive to strain, but not to pure stress. The transducer process is characterized by high focalization of its electrical output with respect to its mechanical input (both in excitation and inactivation); by a high temperature dependence (activation energies on the order of 16,000 cal/mole); and by certain pharmacological properties. The major distortions in time course of the stimulus energy occur on the input side of transduction, in the transmission of mechanical forces through the lamellated capsule surrounding the transducer element. This capsule acts as an elastic storage and filter element. In the former capacity, it stores kinetic energy during the compression phase and releases it during the decompression phase, thus giving rise to the off-transducer response. In the latter capacity, it cuts out low mechanical frequencies, giving rise to adaptation of the transducer response.