定义 Define

高温熔体压力传感器是一种用于检测高温环境熔体压力变化的电子设备。它们能够在高温环境下准确地测量压力，从而确保设备运行的稳定和可靠性。高温熔体压力传感器的主要组成部分包括传感器芯片、连接电缆和壳体。传感器芯片是测量压力的核心，它通常由敏感薄膜、电极和绝缘材料组成。连接电缆可以连通传感器和测量设备，帮助传递压力信号，而壳体则可以保护传感器芯片免受外界环境影响。

高温熔体压力传感器作为一种重要的高温检测设备，已经广泛用于各种高温环境下的监测系统中。具有精度高，响应速度快，抗干扰能力强等特点，可以有效提高设备的运行效率和稳定可靠性。

High temperature melt pressure sensor is an electronic device used to detect changes in melt pressure in high-temperature environments. They can accurately measure pressure in high-temperature environments, ensuring the stability and reliability of equipment operation. The main components of a high-temperature melt pressure sensor include the sensor chip, connecting cable, and housing. The sensor chip is the core for measuring pressure, usually composed of sensitive thin films, electrodes, and insulating materials. Connecting cables can connect sensors and measuring devices, helping to transmit pressure signals, while the housing can protect the sensor chip from external environmental influences.

High temperature melt pressure sensors, as an important high-temperature detection device, have been widely used in monitoring systems in various high-temperature environments. It has the characteristics of high precision, fast response speed, and strong anti-interference ability, which can effectively improve the operational efficiency and stable reliability of the equipment.

原理 Principle

介质的压力直接作用在传感器的膜片上，使膜片产生与介质压力成正比的微位移，使传感器的电阻发生变化，和用电子线路检测这一变化，并转换输出一个对应于这个压力的标准信号。

The pressure of the medium directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro displacement proportional to the pressure of the medium, resulting in a change in the resistance of the sensor. This change is detected by electronic circuits and converted into a standard signal corresponding to this pressure.

惠斯通电桥 Wheatstone Bridge

一种由4个电阻组成用来测量其中一个电阻阻值(其余3个电阻阻值已知)的装置。4个电阻组成一个方形。

一电源连接两个相对的接头，一电流表连接其余两个相对的接头。当电流表显示无电流通过，则此电桥处于平衡状态，即R1·R2=R3·R4

A device consisting of four resistors used to measure the resistance value of one resistor (the resistance values of the other three resistors are known). Four resistors form a square.

Connect one power supply to two opposing connectors, and connect one ammeter to the other two opposing connectors. When the ammeter shows no current passing through, the bridge is in a balanced state, that is, R1 · R2=R3 · R4

应用领域 

Application field

化纤纺丝 Chemical fiber spinning

主要应用：在化纤纺丝过程中，高温熔体压力传感器用于测量和控制高温下聚合物熔体的压力，确保纤维成型的质量。

具体作用：通过精确控制压力，提高纤维的均匀性和质量，减少生产过程中的废品率。

Main applications: In the process of chemical fiber spinning, the high temperature melt pressure sensor is used to measure and control the pressure of polymer melt at high temperature to ensure the quality of fiber molding.

Specific role: Through precise control of pressure, improve the uniformity and quality of the fiber, reduce the scrap rate in the production process.

橡塑机械 Rubber and plastic machinery

主要应用：在塑料和橡胶生产设备中，传感器用于监测和调整挤出机中的熔体压力，保证最终产品尺寸精度和表面平整度。

具体作用：通过优化挤出压力，提高产品质量，延长设备寿命并降低生产成本。

Main Applications: In plastics and rubber production equipment, sensors are used to monitor and adjust melt pressure in extruders to ensure dimensional accuracy and surface smoothness of the final product.

Specific role: By optimizing extrusion pressure, improve product quality, extend equipment life and reduce production costs.

无纺布非织造 Non-woven fabric nonwoven

主要应用：在无纺布生产线上，需要实时监测和调整高速喷丝过程中的熔体压力，以保证纤维网的均匀性。

具体作用：通过稳定的压力控制，提高生产效率和产品质量。

Main application: In the non-woven production line, it is necessary to monitor and adjust the melt pressure in the high-speed spinneret process in real time to ensure the uniformity of the fiber network.

Specific role: Through stable pressure control, improve production efficiency and product quality.

聚酯橡胶合成 Polyester rubber synthesis

主要应用：在聚酯橡胶合成过程中，传感器用于监测反应器内高温熔体的压力变化，保证化学反应的顺利进行。

具体作用：通过实时监控，防止因压力过大或过小导致的生产事故，确保生产安全。

Main application: In the process of polyester rubber synthesis, the sensor is used to monitor the pressure change of high temperature melt in the reactor to ensure the smooth progress of chemical reaction.

Specific role: Through real-time monitoring, prevent production accidents caused by too much or too little pressure to ensure production safety.

医疗高分子材料 Medical polymer material

主要应用：在生产医用高分子材料如导管、输液瓶等时，需要精确控制熔体压力，以确保产品的无毒无菌和精确尺寸。

具体作用：通过高精度的压力传感技术，保障医疗器械的安全性和有效性。

Main applications: In the production of medical polymer materials such as catheters, infusion bottles, etc., it is necessary to precisely control the melt pressure to ensure that the product is non-toxic and sterile and accurate size.

Specific role: Through high-precision pressure sensing technology, to ensure the safety and effectiveness of medical devices.

传统的高温熔体压力传感器，压力测量探头，从室温到高温过程中，传感器零点会受高温影响，产生一个较大的零点漂移，在高温下测量压力时，这个零点漂移量会叠加在测量值里，使得测量偏差较大，为了解决这一问题 GRAEFF 推出了 AIM 系列产品，AIM 系列产品采用了温度补偿技术，在 350℃下对产品进行零点漂移补偿，压力测量探头受到高温时，实现接近于零温漂，使得 AIM 系列传感器测量更准确、稳定。

In the traditional high-temperature melt pressure sensor and pressure measuring probe, the zero point of the sensor will be affected by high temperature during the process from room temperature to high temperature, resulting in a large zero drift. When the pressure is measured at high temperature, this zero drift will be superimposed on the measured value, resulting in a large measurement deviation. In order to solve this problem, GRAEFF launched AIM series products. AIM series products adopt temperature compensation technology to compensate the zero drift of the product at 350℃. When the pressure measuring probe is subjected to high temperature, it can achieve close to zero temperature drift, making the measurement of AIM series sensors more accurate and stable.

高精度监测 

零温漂新专利

无惧温度

革新改造

1000万次压力循环测试

智慧预测

如何选择适合的传感器

How to choose the right sensor

测量的是何种压力。

What kind of pressure is measured.

所测量的介质。

The measured medium.

需要达到什么样的精度。

What precision needs to be achieved.

此高温压力传感器的耐温性、互换性、时间稳定性和坚固程度。

Temperatureresistance,interchangeability, time stability and robustness of this high temperature pressure sensor.

此高温压力传感器使用何种输出，需要的激励电压，以及怎样将传感器连接到自己的电气系统中 。

What output this high temperature pressure sensor uses, the excitation voltage required, and how to connect the sensor to its own electrical system.

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