本页面根据《CT100.pdf》宣传单页整理，文字可直接选中复制；已对个别识别偏差（如氦/氢/氮/氨等字）按原文语义校正，请以原 PDF 为准。
工作原理 Working Principle
CT-100 浓度测试仪是一种利用气体的热导率差异来检测氮氦混合气体中氦气浓度的装置。
The CT-100 concentration tester is a device that uses the difference in thermal conductivity of gases to detect the concentration of helium in nitrogen-helium mixtures.
不同的混合气体具有不一样的热导率。当混合气体通过传感器时，其热导率的变化会影响传感器的电信号变化，通过对电信号的采集处理，从而精确测量出混合气体中氦气的浓度值。
Different mixed gases have different thermal conductivities. When the mixed gas passes through the sensor, the change in thermal conductivity will affect the electrical signal of the sensor. By collecting and processing the electrical signal, the concentration value of helium in the mixed gas can be accurately measured.
常压下导热系数 Under Normal Pressure:
| 温度 | 气体 | 导热系数 |
|---|
| 0℃ | 氮气 | 0.0228 W/(m·K) |
| 氦气 | 0.1440 W/(m·K) |
| 20℃ | 氮气 | 约 0.0248 W/(m·K) |
| 氦气 | 0.1513 W/(m·K) |
At 0℃, the thermal conductivity of nitrogen is 0.0228 W/(m·K). The thermal conductivity of helium is 0.1440 W/(m·K). At 20℃, the thermal conductivity of nitrogen is approximately 0.0248 W/(m·K). The thermal conductivity of helium is 0.1513 W/(m·K).
温度和压力的变化会导致气体热导率微小波动。CT100 内置温度/压力传感器，会根据不同工况和环境自动修正计算，保证了显示精度的准确性。
Changes in temperature and pressure can cause small fluctuations in gas thermal conductivity. CT100 has built-in temperature/pressure sensors that can be adjusted according to different operating conditions. The automatic correction calculation with the environment ensures the accuracy of display precision.
主要应用于氦检气密测试中混合气体的浓度检测：气密测试漏率值和氦气的浓度息息相关，如果浓度不准确会导致漏率浮动、出现测试异常。
Mainly used in helium air leak test, concentration detection of mixed gases: The leakage rate value of the tightness test is closely related to the concentration of helium gas. If the concentration is inaccurate, it will cause leakage rate fluctuations and test abnormalities.
技术参数 Technical Parameter
测试对象 Test Object氮氦混合气体中氦气浓度
使用压力范围 Pressure Range(86~400) kPa abs（其他压力范围可定制）
测量精度 Measurement Accuracy3% F.S.
测量范围 Measuring Range0~100% VOL
响应时间 Response Time≤3 s
线性度 Linearity1%
仪表电源 Power Supply24VDC / 1A
分辨率 Resolution0.01% VOL
显示 Display1.8″ LCD 液晶显示屏
通信接口 Communication InterfaceRS232、网口
回路气密性 Circuit Airtightness3×10⁻⁴ Pa·m³/s
接口标配 Interface Standard ConfigurationRc1/4 内螺纹
工作环境 Work Environment温度 -20~50℃，湿度 0~90%RH 无结露
选购件 Optional Parts
| 名称 | 规格 |
|---|
| 适配器 Adapter | 输入：100~240VAC，输出：24VDC / 1A |
应用场景 Application Scenarios
1. 工业领域：在汽车制造、航空航天、电子和半导体等行业中，氦气浓度计用于检测部件和设备的气密性，确保产品质量和性能。1. Industrial field: In industries such as automotive manufacturing, aerospace, electronics, and semiconductors, helium concentration meters are used to detect the airtightness of components and equipment, ensuring product quality and performance.
2. 医疗行业：在核磁共振成像（MRI）设备中，氦气用于冷却系统，氦气浓度计用于监测氦气泄漏，确保医疗设备的正常运行。2. Medical industry: In magnetic resonance imaging (MRI) equipment, helium is used for cooling systems, and helium concentration meters are used to monitor helium leaks to ensure the normal operation of medical equipment.
3. 实验室和科研：在实验室和科研领域，氦气浓度计用于监测实验中氦气的浓度，确保实验的准确性和安全性。3. Laboratory and scientific research: In the laboratory and scientific research fields, helium concentration meters are used to monitor the concentration of helium to ensure the accuracy and safety of experiments.
4. 能源行业：在气体抽提、储存和燃料电池的制造和运行中，氦气浓度计用于监测气体的纯度。4. Energy industry: In gas extraction, storage, and the manufacturing and operation of fuel cells, helium concentration meters are used to monitor gas purity.
5. 舞台和娱乐行业：在气球和装饰中使用氦气时，氦气浓度计用于检测氦气浓度和泄漏，确保演出安全。5. Stage and entertainment industry: When helium is used in balloons and decorations, helium concentration meters are used to detect helium concentration and leaks to ensure performance safety.
6. 环境监测：在环境监测中，氦气浓度计可以用于测量大气中氦气的浓度，了解气象变化情况。6. Environmental monitoring: In environmental monitoring, helium concentration meters can be used to measure the concentration of helium in the atmosphere to understand meteorological changes.
7. 天然气提氦：在天然气提氦过程中，氦气浓度计用于测量氦气的含量，对氦气资源进行有效开发和利用。7. Natural gas helium extraction: In the process of natural gas helium extraction, a helium concentration meter is used to measure the content of helium and effectively develop and utilize helium resources.
8. 半导体封装检测：在半导体封装过程中，氦气浓度计用于检测封装结构的密封性，确保产品质量。8. Semiconductor packaging inspection: In the process of semiconductor packaging, a helium concentration meter is used to detect the sealing of the package structure to ensure product quality.
9. 电子元器件检测：在电子元器件的制造中，氦气浓度计用于检测元器件的密封性能，保证产品的可靠性。9. Electronic components testing: In the manufacturing of electronic components, a helium concentration meter is used to test the sealing performance of components to ensure product reliability.
10. 精密连接器检测：在电子及半导体行业中，氦气浓度计用于检测连接器的密封性能，确保连接的可靠性。10. Precision connector testing: In the electronics and semiconductor industries, helium concentration meters are used to test the sealing performance of connectors to ensure their reliability.
11. 氦气回收系统：在氦气回收和提纯过程中，氦气传感器可用于监测回收气体的纯度和泄漏情况，提高氦气的利用率和回收效率。11. Helium recovery system: In the process of helium recovery and purification, helium sensors can be used to monitor the purity and leakage of recovered gas, improving the utilization rate and recovery efficiency of helium.
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