Articles

Custom Pressure Sensors for the Aerospace Industry

The aerospace industry is known for having some of the harshest environments on the planet and finding a pressure sensor to withstand those harsh environments can be extremely difficult.  The TR Series pressure sensor and HM Series MEMS sensing element are built to withstand temperatures as low as -40°C and as high as 150°C, making […]

TR Series for Medical Pressure Sensor Applications

When it comes to your patients, you know what’s best. If you could have everything your way, you would. With Merit Sensor’s piezoresistive pressure sensors, you can. In 1991 when Merit Medical needed a reliable pressure sensor for one of its devices, their search for the right pressure sensor turned up empty. It was then […]

Pressure Sensor For All Your Automotive Engineering Needs?

There’s a reason you are still looking for the right automotive pressure sensor. It’s never been on the market… until now. At Merit Sensor, we are constantly innovating to find the best design. ‘Best’ might seem like a relative term, but not when it comes to our product. Our latest innovation, the TR-Series Pressure Sensor, […]

How to seal an O-ring to a TR Series Pressure Sensor

Merit Sensor offers a fully calibrated, back side pressure, harsh media, pressure sensor for use with any media which are compatible with Silicon, glass, ceramic and solder. This sensor assembly (TR-Series) was designed to be used with an o-ring, creating a face seal to the back of the sensor.   There are many technical considerations […]

TR Series Pressure Sensor Based Inches of Water Pressure Switch

In many situations there is a need to know the level of a liquid in a tank or the pressure inside of an air duct. Both of these cases are quite low pressure and can be difficult to measure. This can be accomplished in several ways. The simplest is a sight glass or sight tube, […]

The Wheatstone Bridge

Introduction to the Wheatstone Bridge The heart of Merit Sensor’s pressure sensors is a Wheatstone bridge that is comprised of a group of four resistors on a silicon etched diaphragm. As pressure is applied to the diaphragm the resistors are stressed, changing their resistance. In an ideal setting, all of the resistors would be perfectly […]