Technical Articles
Dataforth Corporation has published these technical articles:
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
(Temperature Sensing)
(Temperature Sensing)
(Temperature Sensing)
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
(Data Acquisition and Signal Conditioning)
From this Article:
The "power factor" of AC systems or components is the cosine of the angle by which the AC current leads or lags the applied AC excitation voltage. The physics of inductance and capacitance behavior...
(Data Acquisition and Signal Conditioning)
From this Article:
Signal conditioning modules, SCMs, used for measuring process control variables such as temperature, pressure, strain, position, speed, level, etc. are always subject to externally induced noise...
(Data Acquisition and Signal Conditioning)
From this Article:
As a prerequisite to this Application Note, the reader is encouraged to examine Dataforth's Application Note AN112, Reference 2, which describes the amplitude characteristics and reviews the...
(Data Acquisition and Signal Conditioning)
From this Article:
System error budgets should be developed and analyzed as an integral part of system designs. System engineers must determine the necessary levels of accuracy for system elements such as field sensors,...
(Data Acquisition and Signal Conditioning)
From this Article:
Information that varies continuously as a function of time is analog information. Computers are digital devices and, therefore, must convert analog information to a digital format in order to work...
(Data Acquisition and Signal Conditioning)
From this Article:
Isolating power sources and sensor signals is the most effective method for eliminating undesirable ground loop currents and induced electrical noise. Dataforth Signal Conditioning Modules (SCMs) use...
(Data Acquisition and Signal Conditioning)
From this Article:
Bridge circuits have been in use for well over 150 years. To date, the bridge is still the most economical circuit technique for accurately measuring resistance. The original bridge circuit topology...
(Signal Conditioning)
From this Article:
The most dominant application of bridge circuits is in the instrumentation arena. Within these applications, the strain gage as a resistive element sensitive to displacement has been used extensively...
(Engineering Services)
From this Article:
Product variation and defects undercut customer loyalty as well as company profits. Six Sigma is a rigorous, disciplined, data-driven methodology that was developed to enhance product quality and...
(Signal Conditioning)
From this Article:
In today's ongoing search for sources of alternative energy, clean, green, and renewable are top priorities. Using wind power to convert wind energy into electricity - achieved with wind turbines - is...
(Signal Conditioning)
From this Article:
While most signal conditioners amplify or attenuate your signals and provide you with a usable 0-10V or 4-20mA output, few manufacturers actually tell you about their signal conditioner's response...
(Industrial Computing)
From this Article:
PID controllers are used in most automatic process control applications in industry. They can regulate flow, temperature, pressure, level, and many other industrial process variables. This Application...
(Signal Conditioning)
From this Article:
The Cohen-Coon tuning rules work well on virtually all self-regulating processes. These rules were originally designed to give a very fast response, but this results in loops with a very oscillatory...
(Signal Conditioning)
From this Article:
Since 1942, well over one hundred controller tuning methods have been developed, each trying to accomplish a certain objective or fill a specific niche. One of these methods is the Internal Model...
(Signal Conditioning)
From this Article:
The original Ziegler-Nichols tuning methods published in 1942 aimed for a super-fast speed of response at the expense of control loop stability. However, with a slight modification of their tuning...
(Signal Conditioning)
From this Article:
A surge tank is placed between two processing units (Figure 1) to absorb flow rate fluctuations coming from the upstream process so that the flow rate to the downstream process changes less rapidly....
(Data Acquisition Products)
From this Article:
The 14-page document revisits the definition of RMS, shows RMS values for various time functions, and explores some RMS measurement issues including the frequency response and crest (or form) factor....
(Signal Conditioning)
From this Article:
In this age of electronics, most modern electrical equipment has embedded microprocessors and electronic circuitry to increase functionality and efficiency....
(Data Acquisition and Signal Conditioning)
From this Article:
Application Note...
(Data Acquisition and Signal Conditioning)
From this Article:
For LDM485 or other RS-485 device at the extreme ends of the line: The need for termination depends on data rate, line length, cable electrical characteristics and environment, and if applicable, the...
(Data Acquisition and Signal Conditioning)
From this Article:
When the SCM5B37 thermocouple modules are used to measure temperature, the measured output voltage must often be converted back to temperature. This is readily done with the SCM5B37 series because...
(Data Acquisition and Signal Conditioning)
From this Article:
Use of the ground jumper arrangement on the SCMPB01 and SCMPB02 backpanels depends on the particular host analog-to-digital converter (ADC) system connected to the backpanels and SCM5B modules. This...
(Data Acquisition and Signal Conditioning)
From this Article:
Read the drift specifications under the "Stability" heading on the appropriate spec sheet. Determine the overall gain of the module by dividing the output range by the input range.
1. Calculating...
(Data Acquisition and Signal Conditioning)
From this Article:
Many sensors used in industry exhibit a deviation from an ideal (linear) relationship between input and output. For example, a given change in temperature does not give rise to the same change in emf...
(Data Acquisition and Signal Conditioning)
From this Article:
Industrial equipment located in the "field" is exposed to electrical noise, power surges, and transient events such as static discharge or lightning strikes. One of the functions of the Dataforth line...
(Data Acquisition and Signal Conditioning)
From this Article:
Cable shielding is used primarily to minimize or eliminate capacitively coupled interference from electric fields. When properly implemented, it can also be used to minimize inductive coupling from...
(Data Acquisition and Signal Conditioning)
From this Article:
In today's dynamic industrial environments, electronic devices, signal and power wiring, and other electrical plant/process equipment often interact to create "noise" or electromagnetic interference...
(Data Acquisition and Signal Conditioning)
From this Article:
Linear variable displacement transducers (LVDTs) provide a method of measuring displacements with very high accuracy and infinite resolution. These type of transducers utilize a precision linear...
(Data Acquisition and Signal Conditioning)
From this Article:
When SCM7B37 thermocouple modules are used to measure temperature, the measured output voltage must often be converted back to temperature. This is readily done with the SCM7B37 series because Cold...
(Data Acquisition and Signal Conditioning)
From this Article:
Figures 1 through 4 are the result of performing a 100-run Monte Carlo analysis on the SCM7B filter circuitry in both the frequency and time domains.* In this type of analysis, all component values...
(Data Acquisition and Signal Conditioning)
From this Article:
Failure rate calculations for the SCM7B modules are derived from 1.) the MILHDBK- 217 (Reliability Prediction of Electronic Equipment), and 2.) Demonstrated Performance.
The "Part Stress Analysis"...
(Data Acquisition and Signal Conditioning)
From this Article:
Using the module data sheet or module top label, determine the input and output ranges of the module. Connect a precision voltage source, current source, frequency source, RTD simulator, resistance or...
(Data Acquisition and Signal Conditioning)
From this Article:
Failure rate calculations for the SCM5B modules are derived from the MIL-HDBK-217E specification. The stress-analysis method is used at ground benign environment, 35°C temperature, and quality...
(Technical Publications and Standards)
From this Article:
The Directive is commonly referred to as the 'ATEX' Directive ('Atmospheres EXplosibles'), but may also be called the ATEX Equipment Directive. The Directive applies to electrical and/or mechanical...
(Data Acquisition Products)
From this Article:
The MAQ20 relay module, MAQ20-DORLY20, contains 20 relays that may be wired as a 4x5 cross point switch as shown in the figure 1 below. The numbers 1-40 represent the 40 spring terminals of the...
(Data Acquisition Products)
From this Article:
MAQ20 PID Control in a Home Heating Application In this application, a MAQ20 Data Acquisition and Control System along with DSCA Signal Conditioning Modules, standard sensors, and actuators control...
(Data Acquisition Products)
From this Article:
Faraday’s law of induction is a basic law of electromagnetism. When an electric circuit is moved in the neighborhood of a magnet, a current is induced in the circuit during the movement....
(Data Acquisition and Signal Conditioning)
From this Article:
The NEC, National Electrical Code (Ref. 4) requires the installation of grounds for safety and does not allow load currents in ground lines. Unfortunately, unwanted ground currents (Ig) often exist...
(Data Acquisition Products)
From this Article:
The Directive is commonly referred to as the 'ATEX' Directive ('Atmospheres EXplosibles'), but may also be called the ATEX Equipment Directive. The Directive applies to electrical and/or mechanical...
(Data Acquisition and Signal Conditioning)
From this Article:
Modern integrated circuit (IC) operational amplifiers (Op Amps) have made quality instrumentation signal conditioning economically practical. Although accurate and stable Op Amp ICs are available for...
(Signal Conditioning)
From this Article:
The need to measure and control the operation of machinery or process equipment is as old as the Industrial Revolution. Plant instrumentation has now become the nerves and brain of the modern...
(Temperature Sensing)
From this Article:
Technical Support Contact us for a wide range of technical support and assistance regarding your application. Use our toll free number and online request form. MAQ20 PID Control in a Home Heating...
(Signal Conditioning)
From this Article:
eNewsletter on resister thermal noises and how signal conditioning modules may help to reduce said noise...
(Filtration and Separation Products)
From this Article:
Signal conditioning modules, SCMs, used for measuring process control variables such as temperature, pressure, strain, position, speed, level, etc. are always subject to externally induced noise...
(Signal Conditioning)
From this Article:
In order to understand MTBF (Mean Time Between Failures) it is best to start with something else -- something for which it is easier to develop an intuitive feel. This other concept is failure rate...
(Data Acquisition Products)
From this Article:
Control operations can be either closed loop or open loop. The key difference is feedback. An open-loop control system (also known as a non-feedback system) acts completely on the basis of input; the...