Working on low signals in the range of 0 mV to 200 mV rms, AD636 makes a precision AC to DC signal conditioner for Instrumentation. DMM, Data Loggers and Process Indicators can use this.
AD636 - True RMS to DC Converter
Some Features and Specs
From Analog Devices
"RMS to DC conversion is the truest way to measure the energy contained in an AC waveform."
The accurate measurement of AC for a wide variety of waveforms and noise is difficult. When we make solar systems and inverters, the AC outputs are seldom sinusoidal. The easy method is to use a Precision rectifier/filter, get the average voltage and a RMS calibration/scaling is done for sine is by tweaking a trimpot. This will not show the right values for other waveforms. The other way was, analog computing, with many opamps and a matched pair of transistors; like multipliers and log amps, very cumbersome for manufacturing and testing.
These single chip solutions like LTC1968 - Precision Wide Bandwidth, RMS-to-DC Converter make it easy to implement an AC Measurement in your embedded, PLC or PC based solution.
Learn more about RMS here Make Better RMS Measurements with Your DMM
LTC1968 - Precision Wide Bandwidth, RMS-to-DC Converter
The LTC1968 is a true RMS-to-DC converter that uses an innovative delta-sigma computational technique. The benefits of the LTC1968 proprietary architecture, when compared to conventional log-antilog RMS-to-DC converters, are higher linearity and accuracy, bandwidth independent of amplitude and improved temperature behavior.
High Linearity: 0.02% Linearity Allows Simple System Calibration
Wide Input Bandwidth:
I have seen machines of Universal Perform in the eighties (not smd). I have also observed one when i was working as an engineer. it was used in the manufacture of Tek Scopes 2235 and 2465.
Genesis Series SMT - Universal Instruments
Genesis GI-14D - Best-in-class multi-function machine with fast placement of a wide component range for applications where flexibility and performance per line length are important.
/Genesis_GC120Q_new_cvr_sm.jpg/$File/Genesis_GC120Q_new_cvr_sm.jpg "Genesis Series 2 Platform")
"Universal provides complete assembly lines to EMS providers, ODMs and electronics assemblers around the world"
Create state-of-the-art production of SMT solder paste stencils. It sports a space saving design, ease of use, high cutting speed and very low operating cost.
The LPKF StencilLaser P 6060 uses a state of the art fiber laser system with custom optics and beam delivery system, providing sidewall qualities that meet and exceed all industry standards.
Some Specs
From - LPKF Laser & Electronics AG
The Gold-Print SPR-45 from Stencils Unlimited is automated with its power sweep squeegee and power frame lift for higher volume runs.
SPR-45 Automatic SMT Stencil Printer
Useful for the fine pitch applications, these have friendly precision controls that make operation of these systems simple and easy.
Some Specs
From Stencils Unlimited
Low ripple, high stability and various remote control functions, ES series ideal power supply for such application as PMT, MCP or Microscope.
ES series - Low noise Precision HV Supply - Matsusada
Some features
From - Matsusada Precision Inc
745 Aojicho Kusatsu, Shiga 525-0041 Japan
Develops, manufactures HV Precision Supplies, X-ray products and Opto-Semiconductors Systems.
These are modular power supplies that can be integrated with Test Jigs, Lab Apparatus, Control and Test Panels or ATE systems.
Constant Voltage/Current Operation. Overload, short circuit, and arc protection is provided by automatic current regulation and by careful surge limiting design.
MJ Series High Voltage Supply - Glassman
Input: 105-125V RMS or 210-250V RMS, 48-420HZ single phase, 0.25 amperes. 3 position terminal block with cover provided.
Output: Continuous, stable adjustment, from 0 to rated voltage or current by panel mounted 10-turn potentiometer with 0.05% resolution, or by external 0 to 10V signals is provided.
Linearity is <1% of rated. Accuracy is 1% of rated + 1% of setting. Repeatability is <0.1% of rated.
Voltage Regulation: Better than 0.005% line and load.
Ripple: < 0.05% RMS of rated voltage at full load. Ripple is proportional to load and decreases linearly to approximately 0.01% at no load.
Current Regulation: Better than 0.05% from short circuit to rated voltage at any load condition.
Regulated HV Power Supplies. Designs and Manufactures high voltage power supply technology for original equipment manufacturers, laboratories and research facilities.
