Wheatstone bridge

简明释义

单臂电桥

英英释义

例句

1.Using a wheatstone bridge, you can find the value of an unknown resistor with high precision.

使用惠斯登电桥，您可以高精度地找到未知电阻的值。

2.In our physics lab, we connected a wheatstone bridge to determine unknown resistances.

在我们的物理实验室，我们连接了一个惠斯登电桥来确定未知的电阻值。

3.The wheatstone bridge is commonly used in strain gauge applications for measuring deformation.

惠斯登电桥常用于应变计应用中，以测量变形。

4.The engineer used a wheatstone bridge to measure the resistance of the circuit accurately.

工程师使用惠斯登电桥准确测量电路的电阻。

5.The principle of the wheatstone bridge is based on balancing two legs of a bridge circuit.

惠斯登电桥的原理基于平衡电桥电路的两个支路。

作文

The Wheatstone bridge is a fundamental electrical circuit used to measure unknown resistances by balancing two legs of a bridge circuit. It was invented by Samuel Hunter Christie in 1833 and later popularized by Samuel Thomas von Wheatstone in 1843, which is why it carries his name. This device is essential in laboratories and various applications where precise measurements are crucial. The operation of a Wheatstone bridge relies on the principle of null detection. When the bridge is balanced, the voltage across the bridge is zero, indicating that the ratio of the two resistances in one leg is equal to the ratio of the two resistances in the other leg.To understand how a Wheatstone bridge functions, let's consider its basic configuration. It consists of four resistors arranged in a diamond shape. Two resistors, R1 and R2, are connected in series on one side, while the other side contains the unknown resistor Rx and a known resistor R3. A galvanometer connects the midpoints of the two series combinations. By adjusting the known resistors, the user can achieve a balance where no current flows through the galvanometer. At this point, the relationship between the resistances can be expressed mathematically as (R1/R2) = (Rx/R3). This equation allows us to solve for the unknown resistance Rx.In practical applications, the Wheatstone bridge is often used in strain gauge measurements, temperature sensors, and various types of transducers. For instance, in a strain gauge application, the resistance changes due to deformation when a material is subjected to stress. By incorporating a strain gauge into the Wheatstone bridge, one can accurately measure these minute changes in resistance, which corresponds to the amount of strain experienced by the material.Moreover, the Wheatstone bridge is not limited to measuring resistances but can also be adapted for use in other sensor applications. For example, when combined with thermistors or photoresistors, the bridge can be used to measure temperature or light intensity, respectively. This versatility makes the Wheatstone bridge an invaluable tool in both educational and industrial settings.In conclusion, the Wheatstone bridge is a classic circuit that has stood the test of time due to its simplicity and effectiveness in measuring unknown resistances. Its ability to provide accurate readings has made it a staple in laboratories and various engineering applications. Understanding the principles behind the Wheatstone bridge not only enhances one's knowledge of electrical circuits but also opens doors to various practical applications in the field of electronics and instrumentation.

电桥（Wheatstone bridge）是一种基本的电路，用于通过平衡电桥电路的两条腿来测量未知电阻。它由萨缪尔·亨特·克里斯蒂于1833年发明，后来在1843年被萨缪尔·托马斯·冯·维特斯通普及，因此得名。这种装置在实验室和各种需要精确测量的应用中至关重要。Wheatstone bridge的操作依赖于零点检测原理。当电桥平衡时，电桥两端的电压为零，表明一侧的两个电阻之比等于另一侧的两个电阻之比。为了理解Wheatstone bridge的工作原理，我们考虑其基本配置。它由四个电阻以菱形形状排列。一侧连接两个串联电阻R1和R2，而另一侧则包含未知电阻Rx和已知电阻R3。一个电流计连接到两个串联组合的中点。通过调整已知电阻，用户可以实现平衡，此时电流计中没有电流流动。在这一点上，电阻之间的关系可以用数学公式表示为(R1/R2) = (Rx/R3)。这个方程允许我们求解未知电阻Rx。在实际应用中，Wheatstone bridge常用于应变计测量、温度传感器和各种类型的传感器。例如，在应变计应用中，当材料受到应力时，由于变形而导致的电阻变化。通过将应变计结合到Wheatstone bridge中，可以准确测量这些微小的电阻变化，这与材料经历的应变量相对应。此外，Wheatstone bridge不仅限于测量电阻，还可以适应其他传感器应用。例如，当与热敏电阻或光敏电阻结合时，该桥可用于测量温度或光强度。这种多功能性使得Wheatstone bridge在教育和工业环境中成为一种宝贵的工具。总之，Wheatstone bridge是一种经典电路，因其简单性和有效性而经受住了时间的考验，能够测量未知电阻。它提供准确读数的能力使其成为实验室和各种工程应用中的基础。理解Wheatstone bridge背后的原理不仅增强了对电路的认识，也为电子和仪器领域的各种实际应用打开了大门。