Pressure sensor selection considerations - Solutions - Huaqiang Electronic Network

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Pressure sensors may encounter many problems when applied. The source of the various reasons is that you did not consider several aspects when choosing, because the sensor is one of the most critical variables in your application system, also in system engineering. The choice of pressure sensor in the design must be among the top priorities.

First determine the pressure to be measured, and the pressure sensor application is designed to monitor varying pressures in liquid and gas applications. What pressure do you want to convert to an analog output? The output of the pressure sensor will be one of the most critical issues you have to face. Your choice will vary from analog voltage, current, digital and wireless output. For example, if you choose a low voltage analog output, you will have a faster response time and a wider temperature range, and you will find fewer suppliers that can provide pressure sensors. Going digital, options will be available, such as RS232, CAN bus, or USB, but the number of options offered by vendors will be limited.

Secondly, the cost of the pressure sensor depends, of course, on how much of all the requirements. Low or high prices should not be an immediate determinant. Make sure that the materials you ask are used in the process and supported by each manufacturer. Designing constraints on your budget will be key, but make sure you know what you are getting high and low cost. If you have clearly defined your application, this should be a fairly simple decision. If you choose the right manufacturer, they will be able to work with you on innovative ways to make the project your way. Specifying your application requirements in front will help minimize the hassle of your selection and you will face further routes with the number of your projects. If your application includes certain features, you may want to consider using a buffer or some form of protection for your pressure sensor. Examples of applications include: process control, car racing, or volume control for any liquid application.

The final note is when you are sure to measure the pressure, determine the type of pressure you want to measure, absolute and differential pressure. What type of connector do you have embedded mount, semi-embedded? Select a similar load and be sure to select a capacity that exceeds the maximum working pressure. In addition, please be sure to the environmental conditions required by the power cord, connector, built-in quick disconnect and output, burst pressure, nonlinearity, hysteresis, creep, bridge resistance and other specifications. It also includes your ambient temperature, the range that the pressure sensor will come into contact with or corrosive chemicals.