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. Later i realized an [...]
Virtual Oscilloscope – Visualize Equations
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 [...]
Soundcard Oscilloscope by Christian Zeitnitz
The Soundcard Oscilloscope receives its data from the Soundcard with 44.1kHz and 16 Bit resolution. The data source can be selected in the Windows mixer (Microphone, Line-In or Wave). The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards.
Soundcard Oscilloscope by Christian Zeitnitz
The oscilloscope contains in addition [...]
Products for portable ECG designs – Analog
Products for portable ECG designs – Analog
“ADI microcontroller and integrated amplifier technologies support ultra low power, small size, and AAMI-EC13 performance level requirements for portable ECG designs.”
AD8235: 40µA Micropower Instrumentation Amplifier in WLCSP Package
The AD8235 is the industry’s smallest, lowest power instrumentation amplifier. It has rail to rail inputs and outputs and can operate on [...]
Instrumentation and Measurement Circuits
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, hot and vibrating industrial environment. Even high levels of Static, Magnetic influences in conjunction [...]
Mass Spectrometry and Portable Microbe Detector
Human Beings are helped or hampered by many types of Microbes. From the Sub-Microbe virus to animal like Bacterium and plant like Fungi.
An Affordable Portable Electronic Microbe Detector using Mass Spectrometry; may be very useful for Small HealthCare Centers and Homes. If a Person Breathes into an adapter in the instrument, it should show a [...]
Millivolt Source with Digital Potentiometer
Here is a Millivolt Source i built for Calibration in the early days. It uses only CMOS Digital and Mixed Chips from Intersil and CD40xx Series.
Later i tried a unit with 8748 part of the code in my uC section. This is with Ramp-up and Ramp-down using only two buttons. This works even now, The [...]