constantan

简明释义

英[ˈkɒnstənˌtæn]美[ˈkɑːnstənˌtæn]

n. [材] 康铜（一种铜镍的合金）

英英释义

单词用法

同义词

反义词

例句

1.A new kind of annular thermopile sensor which consisted of 16 structure cells, 800 chromel - constantan thermocouples was developed.

设计了一种可以方便地增加热电偶数目和灵活调节时间常数的新型环状热电堆传感器。

2.We used anemometers and copper constantan thermocouple respectively to measure velocities and temperatures of all measuring points under various air volumes within the room.

用热线风速仪、铜—康铜热电偶分别测量出不同送风量下的室内各个测点的速度和温度。

3.Constantan use high-quality materials, traditional crafts, and reliability.

选用优质康铜材料，传统工艺，可靠性强。

4.The measuring grid is formed by etching Constantan foil, which is then completely sealed in a carrier medium composed of polyimide film.

测量网格是由康铜箔片构成的，然后完全密封于一个由聚酰亚胺薄膜组成的介质载体。

5.We used anemometers and copper constantan thermocouple respectively to measure velocities and temperatures of all measuring points under various air volumes within the room.

用热线风速仪、铜—康铜热电偶分别测量出不同送风量下的室内各个测点的速度和温度。

6.The resistance of constantan remains nearly constant even when subjected to strain.

即使受到拉伸，constantan的电阻也几乎保持不变。

7.The sensor utilizes constantan to measure changes in temperature accurately.

该传感器利用constantan准确测量温度变化。

8.We chose constantan for the strain gauges due to its minimal temperature coefficient.

我们选择constantan作为应变计材料，因为它的温度系数极小。

9.The thermocouple was made from constantan, which is known for its stable resistance over a wide temperature range.

热电偶是由constantan制成的，这种材料在广泛的温度范围内具有稳定的电阻。

10.In our lab experiments, we often use constantan wire for its excellent conductivity.

在我们的实验室实验中，我们经常使用constantan线材，因为它具有优良的导电性。

作文

In the world of materials science and engineering, there are numerous alloys that serve specific purposes. One such alloy is constantan, which is primarily composed of copper and nickel. This unique material has garnered significant attention due to its remarkable properties, particularly its stable resistivity over a wide range of temperatures. As a result, constantan is widely used in various applications, especially in the field of electronics and thermocouples.The history of constantan dates back to the early 20th century when it was first developed for use in electrical resistance applications. Its name derives from the word 'constant,' highlighting its ability to maintain a consistent electrical resistance regardless of temperature fluctuations. This characteristic makes constantan an ideal choice for precise measurements, as it ensures that readings remain accurate even when environmental conditions change.One of the most common uses of constantan is in thermocouples, which are devices used to measure temperature. Thermocouples work by exploiting the thermoelectric effect, where two different metals generate a voltage when subjected to a temperature difference. In this context, constantan is often paired with another metal, such as copper, to create a reliable and accurate temperature sensor. The stability of constantan's resistivity ensures that the voltage output remains consistent, allowing for precise temperature readings.Another area where constantan shines is in the production of strain gauges. Strain gauges are sensors used to measure deformation or strain in materials. When a material is subjected to stress, it deforms, causing a change in the length and resistance of the strain gauge. Since constantan exhibits minimal changes in resistivity with temperature changes, it provides highly accurate and reliable measurements of strain, making it invaluable in fields such as civil engineering, aerospace, and mechanical testing.Furthermore, constantan is also utilized in the manufacturing of precision resistors. These resistors are crucial components in electronic circuits, where maintaining a specific resistance value is essential for the proper functioning of devices. The consistent resistivity of constantan allows engineers to design circuits that operate efficiently and reliably, reducing the risk of failure due to temperature variations.Despite its many advantages, working with constantan requires careful consideration of its properties. For instance, while it is resistant to oxidation, it can be more challenging to solder compared to other metals. Therefore, engineers and technicians must employ specific techniques to ensure proper connections when using constantan in electronic applications.In conclusion, constantan is a remarkable alloy that plays a vital role in various technological advancements. Its unique properties, particularly its stable resistivity, make it an indispensable material in the fields of electronics, temperature measurement, and strain sensing. As technology continues to evolve, the demand for reliable materials like constantan will undoubtedly grow, paving the way for further innovations and applications in diverse industries.

constantan是材料科学和工程领域中的一种合金，主要由铜和镍组成。这种独特的材料因其显著的特性而受到广泛关注，特别是在广泛的温度范围内具有稳定的电阻率。因此，constantan在各个应用中得到了广泛使用，尤其是在电子和热电偶领域。constantan的历史可以追溯到20世纪初，当时它首次被开发用于电阻应用。它的名称来源于“恒定”一词，强调其在温度波动下保持一致的电阻能力。这一特性使得constantan成为精确测量的理想选择，因为它确保即使在环境条件变化时，读数仍然保持准确。constantan最常见的用途之一是热电偶，热电偶是用于测量温度的设备。热电偶通过利用热电效应工作，即当两种不同金属在温度差异下会产生电压。在这种情况下，constantan通常与另一种金属（如铜）配对，以创建可靠且准确的温度传感器。constantan的电阻稳定性确保电压输出保持一致，从而允许精确的温度读数。此外，constantan还在应变计的生产中大放异彩。应变计是用于测量材料变形或应变的传感器。当材料承受应力时，会发生变形，导致应变计的长度和电阻发生变化。由于constantan在温度变化时表现出最小的电阻变化，因此它提供了高度准确和可靠的应变测量，使其在土木工程、航空航天和机械测试等领域中不可或缺。此外，constantan还用于制造精密电阻器。这些电阻器是电子电路中的关键组件，在这些电路中，保持特定的电阻值对于设备的正常运行至关重要。constantan的一致电阻率使工程师能够设计高效且可靠的电路，减少因温度变化导致的故障风险。尽管有许多优点，但使用constantan时需要仔细考虑其特性。例如，虽然它对氧化具有抵抗力，但与其他金属相比，焊接可能更具挑战性。因此，工程师和技术人员在电子应用中使用constantan时，必须采用特定的技术以确保良好的连接。总之，constantan是一种重要的合金，在各种技术进步中发挥着至关重要的作用。其独特的特性，尤其是稳定的电阻率，使其在电子、温度测量和应变传感等领域中成为不可或缺的材料。随着技术的不断发展，对像constantan这样可靠材料的需求无疑将增长，为各个行业的进一步创新和应用铺平道路。