Articles - Measurement - 5

The more linear the sensor’s output, the easier it is to calibrate and to minimize uncertainty in output scaling Most analog output sensors have general specifications such as linearity (or non-linearity), repeatability, and resolution, as ...

What is Air Pollution? Air pollution is the presence of excessive amount of unwanted harmful solid and gases substances in the air. Cause and Effect of Air Pollution Recently, many cities in the world have encountered rapid urbanization and this ...

Part 1 The safety shield surrounds the electrostatic shield, protecting the instrument user from hazardous voltages on the DUT, or the measurement leads. The safety shield should be connected to earth ground at the instrument, and it should have a ...

Inadequate shielding and bad grounding are often blamed when measurements are inaccurate, especially in high-impedance applications. In fact, shielding and grounding problems are frequently responsible for measurement errors, but many test system ...

Editor’s note: Jim McLucas, author of the Design Idea Circuit measures capacitance or inductance wanted to respond to some discussion about using this Design Idea. Please see the following that may help. This is an analysis of the effect of ...

Engineers usually have access to signal and function generators, as well as frequency counters and oscilloscopes, but they may not have access to capacitance or inductance meters. Using the test setup in Figure 1, you can measure capacitance or ...

ISFETs and MEMFETs (ion-sensitive and membrane FETs) are solid-state chemical sensors that provide an electrical signal associated with the change of a chemical concentration in a solution. These types of sensors need a stable operating point. A ...

You can use an ADT7461 single-channel temperature monitor; an ADG708 low-voltage, low-leakage CMOS 8-to-1 multiplexer; and three standard 2N3906 p-n-p transistors to measure the temperature of three separate remote thermal zones (Figure 1). ...

Most handheld devices use alkaline or rechargeable batteries, and measuring the battery capacity is a crucial feature of such designs. Most of the time, however, using a battery level monitoring IC may be a luxury for budget-tight projects. Here is ...

For transducers, such as strain gauges or thermistors, you must accurately and inexpensively measure resistance using circuitry built with imperfect components and in which gain and offset errors can significantly limit the accuracy of ohmic ...