phototransistor

简明释义

英[ˌfəʊtəʊtrænˈzɪstə(r)]美[ˌfoʊtoʊtrænˈzɪstər]

n. [电子] 光电晶体管

英英释义

单词用法

同义词

反义词

例句

1.The Design project with the main use of AD590 and phototransistor as a test unit has still used the MC14433, 74ls160, such as integrated device.

设计方案中，主要采用AD590和光敏三极管作为检测单元，并运用了MC 14433、74ls160等集成器件。

2.Optically triggered MOS gated solid state relay is a new switching device, which is composed of an MOS gated thyristor, a phototransistor, an enhanced mode MOSFET and a Zener diode.

光控MOS栅固态继电器是由MOS栅控晶闸管、开关三极管、光电耦合器、增强型MOSFET和齐纳二极管组成的新型开关器件。

3.Optocoupler, Phototransistor Output, With Base Connection.

光耦，光电晶体管输出，基地连接。

4.The phototransistor was installed through holes in the top of the case, and enclosed in a brass tube that was painted black inside and out.

该光敏三极管是通过安装在洞上方的情况下，密封在一个黄铜管，这是手绘的黑色内。

5.Such MSM structure can also be formed into a transverse phototransistor with its common-emitter current gain from 2 to '4.

这种结构还可以构成横向光晶体管，共发射极电流增益为2 ~4倍。

6.The necessity of setting the bias current and segregation resistances in every element of bipolar silicon photo-negative resistance phototransistor array is studied and analysed.

探讨并分析具有光致负阻特性的双极型硅光电三极管阵列中各单元器件设置偏流隔离电阻的必要性。

7.In this paper, a high-sensitivity lightwave communication system is set up by using a mini-power near-infrared LED as a light emitter, a phototransistor as a photoelectric receiver.

本文采用小功率红外发光管作光源，用光敏二级管作光接收器件，建立了高灵敏度的光波通信系统。

8.In this paper, a high-sensitivity lightwave communication system is set up by using a mini-power near-infrared LED as a light emitter, a phototransistor as a photoelectric receiver.

本文采用小功率红外发光管作光源，用光敏二级管作光接收器件，建立了高灵敏度的光波通信系统。

9.The phototransistor and the light emitting diode are arranged on the end cover along a radical direction to form a measurement head.

光敏三极管与发光二极管沿径向安装于端盖上形成测量头。

10.The physical fundamentals of the injecting photosensitive device, the basic configuration and characteristics of the injecting phototransistor have been introduced.

本文介绍了注入光敏器件的物理基础、注入光敏三极管的基本结构和特性。

11.The phototransistor 光电晶体管 is commonly used in light detection applications.

光电晶体管通常用于光检测应用。

12.A phototransistor 光电晶体管 can be found in many remote control systems.

光电晶体管可以在许多遥控系统中找到。

13.The circuit uses a phototransistor 光电晶体管 to turn on the LED when it gets dark.

该电路使用光电晶体管在变暗时打开LED灯。

14.In our project, we integrated a phototransistor 光电晶体管 to measure ambient light levels.

在我们的项目中，我们集成了一个光电晶体管来测量环境光水平。

15.Using a phototransistor 光电晶体管 allows for faster response times in optical sensors.

使用光电晶体管可以在光学传感器中实现更快的响应时间。

作文

In the realm of modern electronics, the phototransistor plays a crucial role in various applications. A phototransistor is a semiconductor device that converts light into electrical current. It operates similarly to a regular transistor but is sensitive to light rather than electrical signals. This unique feature makes the phototransistor an essential component in devices that rely on optical signals, such as light sensors and optical communication systems.The working principle of a phototransistor is quite fascinating. When light falls on the junction of the phototransistor, it generates electron-hole pairs in the semiconductor material. These charge carriers are then amplified by the transistor action, resulting in a significant increase in electrical current. This property allows the phototransistor to detect even low levels of light, making it highly sensitive and effective for various applications.One of the most common uses of the phototransistor is in light-sensing applications. For instance, they are widely used in automatic lighting systems, where they can detect ambient light levels and turn lights on or off accordingly. This feature not only enhances convenience but also contributes to energy savings, as lights are only activated when necessary. Furthermore, phototransistors are integral to safety systems, such as smoke detectors, where they can detect the presence of smoke particles by sensing changes in light intensity.In the field of telecommunications, phototransistors are vital components in fiber optic systems. They convert light signals transmitted through fiber optic cables into electrical signals that can be processed by electronic devices. This conversion is crucial for high-speed data transmission, as it allows for faster communication over long distances without significant loss of signal quality. The efficiency and speed of phototransistors make them indispensable in today’s fast-paced digital world.Moreover, the versatility of phototransistors extends to their use in consumer electronics. Many devices, such as remote controls and cameras, utilize phototransistors to detect infrared light or ambient light levels. In cameras, for example, phototransistors can help adjust exposure settings automatically based on the surrounding light conditions, ensuring optimal image quality.As technology continues to advance, the development of phototransistors is also evolving. Researchers are exploring new materials and designs to enhance their performance further. Innovations such as organic phototransistors and those made from two-dimensional materials like graphene show promise for increased sensitivity and efficiency. These advancements could lead to even more applications, such as in wearable technology and smart devices that require precise light detection capabilities.In conclusion, the phototransistor is a remarkable invention that has significantly impacted various fields, from consumer electronics to telecommunications. Its ability to convert light into electrical signals efficiently makes it a vital component in many modern devices. As we continue to innovate and integrate technology into our daily lives, the importance of phototransistors will undoubtedly grow, paving the way for smarter and more responsive electronic systems.

在现代电子领域，光电晶体管发挥着至关重要的作用。光电晶体管是一种将光转换为电流的半导体器件。它的工作原理与常规晶体管相似，但对光而非电信号敏感。这一独特的特性使得光电晶体管成为依赖光信号的设备中的重要组件，例如光传感器和光通信系统。光电晶体管的工作原理非常迷人。当光线照射到光电晶体管的接合处时，会在半导体材料中产生电子-空穴对。这些电荷载流子随后通过晶体管作用被放大，从而导致电流显著增加。这一特性使得光电晶体管能够检测到低水平的光，使其在各种应用中高度敏感和有效。光电晶体管最常见的用途之一是光感应应用。例如，它们广泛用于自动照明系统中，能够根据环境光水平自动开关灯。这一功能不仅提升了便利性，还节省了能源，因为只有在必要时才会激活灯光。此外，光电晶体管在安全系统中也是不可或缺的组成部分，例如烟雾探测器，通过感应光强度的变化来检测烟雾颗粒的存在。在电信领域，光电晶体管是光纤系统中的重要组件。它们将通过光纤电缆传输的光信号转换为可以被电子设备处理的电信号。这一转换对于高速数据传输至关重要，因为它允许在长距离内更快地进行通信，而不会显著损失信号质量。光电晶体管的效率和速度使其在当今快速发展的数字世界中不可或缺。此外，光电晶体管的多功能性延伸至消费电子产品的使用。许多设备，如遥控器和相机，利用光电晶体管来检测红外光或环境光水平。例如，在相机中，光电晶体管可以根据周围光线条件自动调整曝光设置，确保最佳图像质量。随着技术的不断进步，光电晶体管的发展也在不断演变。研究人员正在探索新材料和设计，以进一步提高其性能。诸如有机光电晶体管和由二维材料如石墨烯制成的光电晶体管等创新显示出提高灵敏度和效率的前景。这些进展可能导致更多应用，例如可穿戴技术和需要精确光检测能力的智能设备。总之，光电晶体管是一项了不起的发明，对多个领域产生了重大影响，从消费电子到电信。其高效地将光转化为电信号的能力使其成为许多现代设备中的重要组件。随着我们继续创新并将技术融入日常生活，光电晶体管的重要性无疑会增加，为更智能、更灵敏的电子系统铺平道路。