There are two common ways to measure air velocity: by using pressure-based instrumentation or by using temperature-based instrumentation. Before we discuss the different technologies available for measuring velocity pressure, it is important to understand the basics of air velocity.
When it comes to capturing energy savings, owners, contractors, and engineers will utilize several design efforts to reduce a building’s total energy consumption and carbon footprint. The first area that design engineers typically tackle is the lighting design of the building (using things such as building orientation to maximize natural light or low energy consuming LED lights), but another large consumer of energy in a building is the ventilation system used for garage parking. Continue reading “Understanding Ventilation Efficiency and DCV in Parking Structures and Garages”
If you’ve ever spent time in a hospital, you may have noticed a device similar to a home thermostat mounted on the wall with a display stating “ACH”. What exactly does “ACH” stand for and why is it important in a building or hospital? Continue reading “What is ACH and Why is It Important?”
Humidity sensors are one of the most common types of sensors used for HVAC equipment and building management systems. With proper humidity monitoring, energy efficiency of a building can be improved. By using environmental conditions in conjunction with an economizer to reduce the building load, cool outside air is used to cool the indoor space of a building. Dampers, humidity sensors, and temperature sensors are used to verify optimal outdoor conditions for maximizing energy cost savings. Continue reading “Capacitance Polymer Humidity Sensors”
At one point or another we have all been exposed to some form of an electrostatic discharge (ESD) event, even something as simple as walking across a carpeted space, touching a door knob, and receiving an unexpected jolt. These types of events are very common in instrumentation applications. Today we will discuss what ESD is, the effects it has on instrumentation, and the steps that Dwyer Instruments has taken to prevent damage to sensors susceptible to these events. Continue reading “What is electrostatic discharge and how can it be prevented?”