Instrumentation System Assignment - Lab Report Example

The improved version contains some additional features like a backlit display that can be used in low light conditions and a housing that enables optimal viewing when rotated. Other user-programmable functions of the DG-10-E include auto power-off, tare function, and password protection (Wika.com, 2015). DG-10 has the capabilities of handling pressures of up to 5000 psi. The instrument has a display accuracy of ≤ ±0.25% B.F.S.L. Its high accuracy, long-term stability and excellent repeatability makes it preferable to most users.

The DG-10 has got applications in mechanical engineering, hydraulics/ pneumatics, pumps/ compressors and service industries. Pressure is applied to the pressure sensors within the equipment. These sensors can either be resistive, capacitive or piezoelectric crystals. A pressure on the crystals causes a generation of electric current due to the piezoelectric effect. Since the generated voltages are slight, an amplifier is used to amplify the output to a readable value. The output is in analog form due to the analog sinusoidal voltage output from the transducers.

The analog to digital converter is thus used to convert the analog output to produce its digital counterpart for ease of reading. The final output is displayed on a digital display screen. The experiment discussed below uses a bourdon pressure gauge in the calibration process. Pressure in both liquids and gases of different types are mostly measured using the bourdon pressure gauge. The reason being the low prices of the equipment, and accurate results achieved from the instrument. The device is also safe and simple to operate.

High pressure and vacuum measurements apply the use of bourdon tubes. The bourdon tubes form essential components of most devices used to measure various types of pressure, including absolute, gauge and differential pressures. A Bourdon pressure gauge mainly consists of a tube that has been