EE Tech Metrics - dapj

Blind Dial Proportional Temperature Controller

2012-04-16T15:35:00.001+05:30

This is a Low cost controller, Analog Dial Temperature Controller. It is also called Blind Controller. This essentially means Open Loop, just control the fuel or energy input to the system to regulate heat. This is not a Blind Controller that way, it only cannot display the temperature value, that...

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Analog Dial AVO Amps-Volts-Ohms meter

2012-04-13T17:25:00.001+05:30

This was designed, keeping in mind, that sometimes we have few components available and we could be flat broke. Even that you could not carry your DMM somewhere, but you have to make some instrument for a quick need with what is available. If you are out of cash or feel like Robinson Crusoe, then...

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Printer Port 256 Relays 16K Dot Matrix

2012-04-12T17:14:00.000+05:30

Using this circuit on Printer Port, one could drive 256 Relays or 16K LEDs as Dot Matrix display. It can be used to drive a Large size multiplexed LED dot matrix display or Latched Relay-Solenoid-Motor-Lamp Array Drivers. This circuit can be modified for a Static drive output or a fast changing...

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Custom Built Test Instruments

2012-02-23T18:14:00.000+05:30

I designed and built many custom "engineered" Test Instruments. They were not prefect, as only one or two were fabricated. That means it will be costly to produce such instruments. It is just like tooling, you have to make some numbers to recover costs, or price it very high to compensate for the...

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Analog Interface for PC Ports

2012-02-21T18:49:00.000+05:30

Here are examples of an analog Input and Output interface for Printer Port. There are two visual basic demo programs with source to test out idea. Analog Interface for PC Ports USB and wireless interface to PC may be more in vogue, but a higher speed is possible in printer-port. For analog and...

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Temperature Control - Part 2

2012-02-10T18:31:00.001+05:30

A Two Point Process Controller or Temperature Controller would look like this. When a High-Low Alarm Protection for uC based Controller was needed the same was modified and used. Sometimes uC based instruments just forget and that can be costly, the watchdog timer has solved this problem. In...

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Temperature Control in Automation

2012-01-30T16:02:00.000+05:30

Temperature Controller 48-96 - A 1/8 DIN Indicating Temperature Controller. This is a Analog Controller built around ICL7107. Temperature Measurement and Control This is a 48-96 DIN Temperature Controller, it is mains operated, it is in a Industrial Plastic Housing. It is not meant for very...

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Regulated High Voltage Power Supply

2012-01-29T20:53:00.001+05:30

I had one problem of displaying a large Circuit in a webpage, The PDF format was the only sensible way. But Some want it in the form of a image, So i am trying to give a PNG format also. The Circuit below is a paper design and not tested. It can be used for education and information, this can help...

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EDA and Product Design Ideas

2012-01-24T16:15:00.000+05:30

Some Ideas of mine that were put in delabs Tweeter, related to EDA and Product Design Product Design Optimization Make Practical (it works), Affordable, Usable (ergonomics), Safe, Reliable (robust), Durable/Consistent & Maintainable (Servicing) Products. Dust and Contamination in...

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Multi Zone Temperature Controller

2011-12-27T16:33:00.001+05:30

This was one unique custom design i made for a Mining Company for Ore Processing. It was Multi Zone Scanner controller. It might have been for a rotary kiln of a large size. Four temperature sensors were connected to the system with brushes just like in a motor. Even the supply to the...

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Multi Zone Process Monitor

2011-12-26T17:25:00.000+05:30

Here is an ancestor of the product in the earlier post. It is a Process Scanner and Indicator. There was no control, but there were individual alarms for each channel. This is a original design of mine, obsolete now due to size and technology. The inspiration of the product concept was from a...

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Materials and Inventory Management

2011-12-21T17:43:00.000+05:30

The Inventory of a Firm should be Open within an Organization. Searching with a browser, Integrateable with departmental webware/intranet. With a very easy readable non-programmer friendly API. The Search must be based on Multiple Keywords, Filters or Tags. Dormant Inventory and...

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delabs.co - Tech Engineering Framework

2010-07-29T17:18:00.000+05:30

delabs now has a central home, almost like a Online HQ. delabs.co came online on the 28th of July, in the year 2010. Its Historical if you see it through my eyes. At least i am dreaming Seriously. Things may not be the same anymore, things never are. I have to get back to my Arduino Practice....

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Anwheel Methods - Mechanical and Mechatronics

2010-07-27T12:58:00.000+05:30

Mechanical Engineering, Robotics, Mechatronics. Manufacturing Technologies and Engineering Materials. Anwheel Methods - Mechanical and Mechatronics At last a found the right way to use my Anwheel.com domain. It started as a home for tuned search, then news. Now it comes into the Engineering...

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delabs EE Maps Web

2010-06-06T15:36:00.000+05:30

delabs EE Maps Web Test and Measurement » Map for T&M Instrumentation and Technologies. Instrumentation. Labratory and Analytical » Laboratory Test and Measurement, Research and Development Equipment. Industrial Process Control »Map listing Process Control and Industrial Automation. Ham QRP »...

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Test Measurement Instruments by delabs

2010-05-19T18:06:00.000+05:30

These are Instruments that Jack built. Here read Jack as me, delabs. Some were hand made, some in the form of workflow of a small firm with professional equipment. Some made in quantities, other a couple or more for R&D. The photographs of many were not taken, some products were lucky....

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Industrial Control Panels and Instruments

2010-05-13T11:44:00.000+05:30

Temperature and Pressure Controllers form a large part of Process control Instrumentation. Then you have Flow, Humidity and many more custom parameters. All Real Life Physical Phenomena are reduced to Analog Numbers by Sensors and Transducers. This analog value is amplified and linearized and...

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Virtual Oscilloscope - Visualize Equations

2010-04-27T21:27:00.000+05:30

Oscilloscope Functions and Fourier Series. Periodic Waveforms. Watch Sine, Square, Triangle and Sawtooth Waves and Study Controls. This Scope is a Real Time Graph of Volts Y and Time X at any node of a circuit. It can show both AC and DC. Load an equation of your own and see it as a waveform on...

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Digital Tutor Gadgets with Canvas View

2010-04-10T15:43:00.000+05:30

The Digital Electronic Interactive Tutors Gadgets, have a canvas view now. That means in iGoogle and Google Sites, you can set it to full size with a embedded schematic. The Normal view is also available unchanged. Astable 555 Timer Flasher - 555 Blinks Two LED Lamps, Vary Part Values. LED Running...

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Analog Op-Amp Tutors with Gadgets

2010-04-09T17:27:00.000+05:30

I have made some iGoogle Gadgets with canvas view, these are analog opamp tutors. Interactive Tutorial with Simulated Meters and Potentiometers, demonstrating how Operational Amplifier functions in different configurations. Op-Amp Simulation using Javascript Inverting Amplifier Gadget - Get...

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Electrical Engineering Metrics - EEMetric.com

2009-11-01T11:46:00.001+05:30

Electrical Engineering Metrics What are the EE Metrics - Volts, Amps, Ohms, Henry, Farad, Watts and many more. "EE" is Electrical Engineering. "Metric" from Latin metricus is "relating to measurement". Combining them is a Acro-Portmanteau. (Acronym) in reference to: EEMetric.com - Electrical...

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Mixed Circuits Analog with Digital

2009-08-01T09:29:00.000+05:30

Mixed Circuits Analog with Digital Here are some circuits that have both Analog and Digital Signals in them. At one time i wanted to make reed relays, it was a good spot to be in, as it was used in Telecommunications. Even Small Office EPABX systems would have quite a Few of them. It was Simple,...

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Instrumentation and Measurement Circuits

2009-08-01T08:09:00.000+05:30

Instrumentation and Measurement Circuits T&M and Process Control Instrumentation have many things in common; but the conditions in which a Industrial Instrument works, may be very unfriendly. Industrial Instruments are used both in Clean-Cool Control Rooms and also in a corrosive, humid,...

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Mixed Electronic Designs

2009-07-16T13:42:00.000+05:30

Analog Designs have to handle Linear Signals, Like 2.03 V and 35.3812 mA. Waveforms of all shapes from Straight Line DC Levels to the Jittery and Multi-Frequency Audio Waveforms. Digital Designs manage Digital Signals, Like 0 and 5V Logic levels. All families of digital Logic, have some...

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Mixed and Interface Circuits

2009-07-16T09:03:00.000+05:30

Mixed and Interface Circuits : Most of the sensor interface and instrument inputs are analog; even if it event based like a limit switch, analog circuit protection and signal conditioning is required before it reaches the level sensitive digital circuit blocks. Starting with Schmitt...

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