What does shock and vibration do to a pressure transducer?


June 19, 2017

The Model 3100 compact welded stainless steel designs are constructed to protect the sensors in demanding industrial environments. The electrical connectors are tested to an environmental protection specification of IP67 and above and a robust internal design ensures that the transducers can survive high levels of vibration. A high level of EMC protection allows the transmitters to perform to the most stringent of industrial standards and all devices are RoHS compliant.There are numerous environmental factors这可能会干扰压力传感器的性能。两个通常被忽略的因素是冲击和振动。了解压力传感器安装的系统有助于避免高冲击和振动情况,最大限度地减少仪器的过早故障。

Shockis a sudden, unexpected impact that transmits energy to a device in a relatively short time interval. For a pressure transducer, that energy passes through the stainless steel up through the housing. Shock may originate from rough transportation and handling, such as by trucks, forklifts and conveyors.

Alternately, shock can be caused simply by dropping the transducer on the shop floor or by an operator quickly closing a ball valve, inducingfluid hammer effecton the sensor. A transducer may not be damaged by a single shock, but can experience fatigue failure with numerous low-level shocks over the course of its life.

Vibrationis yet another consideration. Vibration is continuous oscillation directed at the transducer. In the case of an engine test cell, for instance, the running engine emits a constant vibration that might affect transducer operation if it is mounted too close.

Shock and vibration can cause a wide range of problems, including:

  • dented enclosures
  • disconnected wires
  • broken circuit boards
  • faulty signal
  • shortened life.
  • & many other intermittent problems

为了防止装配过程中的冲击和振动,整车厂应该首先意识到这个潜在的问题(很多没有意识到),然后采取相应的措施来预防。听起来很简单,最好的补救办法是把传感器安装在离明显的冲击和振动源越远越好。根据安装的不同,另一种可能的解决方案是使用冲击和振动隔离器。

SETRA BLOG:3 overlooked design considerations when choosing a pressure transducer.

Tips for OEMs and Installers

Transducer suppliers can provide OEMs with information needed to design a system where the transducer can be handled appropriately during installation. They advise engineers to design their transducer installation so only a few tools are used for its assembly rather than an entire toolbox, increasing the likelihood that the correct tool will be used during the assembly process.

Also, care should be taken to ensure the correct tools are used. For example, assemblers shouldn’t use channel locks that may gouge and scratch the pipe when a standard open-end wrench will suffice. Moreover, if the assembly is heavier than the approved weight limit, work procedures should state that two people are required to lift it, rather than one who might drop and damage the assembly.

Need a custom pressure sensing solution?Talk to a representative today about Setra Select.

Topics:General Industrial OEM,General Industrial