振动传感器和配件

型号 、VIB 6.12x、VIB 6.14x

• 测量振动加速度、冲击脉冲（滚柱轴承状态）和泵气蚀

• Tandem-piezo 传感器

• 电流线路驱动 (CLD) 信号放大

• 安装选项：贴合、螺纹、磁吸

• IP68 选项

• 提供 EX 版本

技术数据（节选）

• 频率范围 (±3dB) 1 Hz...20 kHz 0.3Hz ...10 kHz

• 线性范围 (±10%) 961 ms-² 450 ms-²

• 灵敏度 1µA/ms-² 5.35µA/ms-²

• 谐振频率 36 kHz 17 kHz

型号 VIB 6.202

• 振动加速度、冲击脉冲（滚柱轴承状态）和泵气蚀

• 紧凑设计

• 电缆敷设占用空间小

• 物美价廉

• Tandem-piezo 测量元件

• 电流线路驱动 (CLD) 信号放大

• 安装选项：螺栓接合、胶合、磁吸

• 提供 EX 版本

技术数据（节选）

• 频率范围 (±3dB) 2 Hz...20 kHz

• 线性范围 (±10%) 961 ms-²

• 灵敏度 1µA/ms-²

• 谐振频率 30 kHz

型号 VIB 6.172

• 适用于低转速机器：大于等于 6 U/min (=0.1 Hz)

• ICP 电压输出

• 安装方式：旋紧、粘贴

• 也可获取防爆型 ICP 传感器

技术数据（节选）

• 频率范围 (±3dB) 0.1 Hz ...10 kHz

• 线性范围 < 70 g (r.m.s.) (±1%)

• 传输因数 100 mV/g

• 揩振频率 17 kHz

VIBXPERT振动分析仪和VIBSCANNER 2数据收集器的VIB类型6.655

• 同时在 X、Y 和 Z 轴方向进行振动测量

• 通过螺栓连接或者磁性适配器进行安装

• ICP 电压输出

• 仅适用于 VIBXPERT I 和 VIBXPERT II

技术数据（节选）

• 频率范围 (±3dB) 0.6 Hz ...10 kHz

• 线性范围 (±10%) 50g（峰值）

• 传输因数 100 mV/g

型号VIB 6.640

感应式接近传感器 VIB 6.640 用于非接触测量指定范围内金属物体的间隙。该传感器连接到 VIBXPERT 振动分析仪。

• 非接触测量

• 安装简便

• -宽广的线性 / 工作范围

技术数据（节选）

• 工作范围 Sn：3 ...15 mm

• 最高频率：300 Hz

• 感应测量原理

型号VIB 6.645 SET

感应式位移传感器 VIB 6.645 SET 连接到普卢福在线系统。该传感器可确定指定范围内金属物体的位置。

• 非接触测量

• 安装简便

• 宽广的线性 / 工作范围

• 跨整个工作范围的线性电压信号

• 最高频率较高

• LED 调节指示

技术数据（节选）

• 线性范围：2 ...10 mm

• 额定工作距离 Se：6 mm

• 最高频率：500 Hz

型号 VIB 6.631

• 适用于便携式 PRUFTECHNIK 测量系统的转速传感器

• 激光测量

• 安装和调整简单

• 转速测量范围广

• 稳定的三脚架（附件）

• 可选配防爆型

技术数据（节选）

• 测量范围：0,1 ... 600 000 U/min

• 测量距离：0,05 ... 2 m

• 输出：5V (TTL)

型号 VIB 5.992-NX

• 适用于固定式 PRUFTECHNIK 测量系统的标准型转速传感器

• 感应式测量

• 安装和校准简单

技术数据（节选）

• 测量范围：< 150,000 U/min

• 测量距离：2,3 ... 12 mm

• 负载电流：200 mA

普卢福专利 Tandem-Piezo 加速度计的独特功能使其适用于几乎所有类型的工业振动应用。

独特的设计真正消除了温度冲击和基础应变效应；它还可以处理涡轮机械和齿轮箱、抗摩擦轴承和泵气蚀的状态评估——所有这些都以同一传感器完成，这要归功于宽线性范围和 36 kHz 下的既定冲击脉冲共振特性。

• 低基础应变灵敏度、横向灵敏度和对温度瞬变的敏感性

• 高抗冲击性

• 集成的共振抑制滤波器可避免放大器过载

• 工厂局部加厚处理，实现高长期稳定性

永久安装的监测系统中使用的长电缆必须经受相当大的电气和机械干扰。在传统传感器中，信号会被噪声和干扰淹没，几乎无法通过网络。

普卢福使用线路驱动系统，该系统由内置于每个传感器中的微型电子放大器组成，以增强振动信号。

• 对机械和电气干扰（电缆噪声、电磁、接地环路）的敏感度低

• 可以使用非常长的低成本电缆，信号损失非常小

• 不受安装过程中电缆定位的影响

• 沿携带振动信号的同一根同轴电缆传输电源电流（电源来自接收器仪器内置的电源）。

两种类型的线路驱动系统，提供电压输出或电流输出。鉴于其技术优势，普卢福系统使用后者，具有以下优点：

• 甚至在超过 1,000 米的超长电缆中的高频损耗也要低得多。

• 对感应噪声和接地环路噪声的敏感性要低得多，在大多数情况下也不需要绝缘传感器。

A vibration sensor is a device used to measure the vibrations emitted by equipment and assets. Vibration sensors measure levels of displacement, velocity, and acceleration.

Changes in these measurements that fall outside of a predefined threshold for normal operation can indicate a problem, such as a worn bearing, misaligned parts, or other condition that requires attention. Vibration monitoring is one of the most effective forms of condition monitoring because it can pick up on these problems months before they become serious enough to cause asset failure. This enables maintenance teams to address the problems and schedule maintenance proactively, reducing the risk of unplanned downtime.

Here's how a vibration sensor works: Every piece of rotating equipment has its own vibration signature. When a machine’s normal vibration patterns change, it may indicate a fault. Changes to vibration patterns can reveal a wide array of problems, including looseness, imbalance, or premature wear. Vibration patterns also change when your machine parts are cracked or improperly connected.

Modern vibration sensors can capture and transmit vibration data on a continuous basis, making this data available for analysis in real-time. This makes it easy for your maintenance team to see exactly what’s going on with your assets, so that they can stay a few steps ahead of your maintenance needs.

When used as part of a comprehensive predictive maintenance strategy, vibration sensors can drastically reduce downtime and increase your operation’s productivity.

There are a number of different types of vibration sensors
on the market, including a variety of vibration sensing technologies, as well as both wireless and wired sensors. It is important to choose a sensor that fits your needs and your budget. The following is a high-level overview of the different types of vibration sensors on the market today.

Accelerometer Vibration Sensors

Accelerometers are the most commonly used kind of vibration sensor. They measure changes in the velocity of your assets’ vibrations.
Accelerometer vibration sensors are highly sensitive and can pick up on even subtle changes in vibration.

There are many different kinds of accelerometers, including:
Vibration Meters are small, hand-held devices that can measure vibrations on an as-needed basis.
Vibration meters often do not directly attach to your machinery, though some can be configured that way. Instead, technicians use them as part of routine inspections. Vibration meters often include accelerometers.
Vibration meters are convenient and accurate. However, they cannot provide data on a continuous basis, the way wireless vibration sensors can. This means that vibration meters alone can’t enable a predictive maintenance strategy.

MEMs Vibration Sensors are widely used because of their frequency response. They excel at picking up vibration frequencies between 0 and 1,000 hertz. Changes in those lower frequencies typically point to problems with imbalance, misalignment, and looseness. MEMs sensors are also cost-effective, offer a long battery life, and have high IP ratings for reliable operation in wet or dusty industrial environments.

Piezoelectric vibration sensors, also known as piezo sensors, are often lauded for their performance even in extreme environments. Piezoelectric vibration sensors also pick up on higher frequencies, especially frequencies above 1,000 hertz. Changes in these higher frequencies usually indicate problems with gearboxes and motor bars.

Piezoelectric vibration sensors use the piezoelectric effect to measure vibration by converting it into an electrical charge. These sensors rely on piezoelectric elements – usually quartz crystals – to convert the mechanical energy caused by vibrations into electrical signals.
Your technicians will place piezoelectric sensors directly on your equipment or component parts. As the asset vibrates, that movement creates an electrical charge across the piezoelectric element.
Piezo vibration sensors are probably the most widely used form of accelerometer because of their resilience, versatility, and ability to operate in harsh environments.

In the past, vibration sensors were primarily used for large-scale equipment like HVACs. Today, there is more pressure than ever on manufacturers to keep up their production schedules on target and minimize downtime. Most operations are also using more assets than ever before. This makes it more challenging and complex to perform routine inspections.

As a result, more and more industrial operations have started using vibration sensors to monitor the health of their equipment. Vibration sensors alert you to potential problems like misalignment, imbalance, looseness, and gear issues. In many cases, the sensors flag these conditions months before they turn into major problems. That allows your maintenance team to get in and fix the issue ahead of time.
Vibration sensors are a key part of any condition monitoring or predictive maintenance strategy. They allow you to keep tabs on your equipment without forcing you to shut down operations for routine inspections.

You’ll know exactly when and where to replace belts, lubricate parts, or perform other routine maintenance tasks. Ultimately, you’ll save on maintenance costs and maximize your uptime and productivity.

It’s generally a good idea to install vibration sensors on your critical assets. Vibration sensors can track the health of all of your rotating equipment, including

• Motors

• Fans and belts

• Pumps

• Gearboxes

• Conveyor systems

• Automated assembly lines

• Chillers

When first piloting a condition monitoring program, start by installing vibration sensors on the equipment that you rely on to maintain production levels. Install the sensors as close as possible your motor, pump, and shaft bearings. If you’re not sure where or how to mount your sensors, it’s a good idea to consult with condition monitoring experts.