SR235 Analog Processor0 pages

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Gated Integrators and Boxcar Averagers

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SR235 —Analog processor (2-channel)

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36 functions

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Dual inputs

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Post filtering and gain adjustment

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2 % basic accuracy

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SR235... $1500 (u.s. iht)

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■SR235 Analog Processor-

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The SR235 Analog Processor provides a variety of convenient

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signal processing functions on one or two inputs. Background

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subtraction, ratioing and logarithmic compression are just

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a few of the functions which can be implemented with the

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SR235. With its many output functions, high accuracy, and

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variable filtering and gain, the SR235 is the perfect addition

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for any boxcar system—especially those in which a computer

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is unavailable to perform signal processing.

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The SR235 outputs a voltage proportional to a function of an

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argument formed from its two inputs (A and B). Allowable

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arguments are: A, B, V(A2 + B2), A - B, A x B /10, and 10A / |B|.

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The functions that can be selected are: x, x2, Vx, ln|x|, -dx/dt,

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and -(dx/dt) / 100. Filtering can be performed on the argument

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with time constants from 0.3 ms to 30 s.

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Ordering Information

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SR235 Analog processor

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$1500

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SR235 Specifications

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A and B inputs

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Argument (x)

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Argument filter

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Gain

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F(x) output

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Frequency range

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Accuracy

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Power

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Warranty

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1MD input impedance, ±10 V range,

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protected to 100 V, <2 mV input offset

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A, B, V(A2+B2), A-B, A xB/10,

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10A/|B|

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Time constant: 0.3 ms to 30 s (1-3-10

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seq.) When OFF, argument is unfiltered.

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0.1 to 20 in a 1-2-5 sequence

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x, x2, Vx, ln|x|, -dx/dt, -(dx/dt)/100

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-dx/dt to 10 Hz, -(dx/dt)/100 to 1 kHz,

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V(A2+B2) to 20 Hz, all others to 50 kHz

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Gain, 2 %; rms sum, 3 %; difference,

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1 %; multiplication, 2 % of full scale;

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division (denominator >0.1), 3 % of

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full scale; ln|x|, x2, Vx acc. to ±20mV

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(ref. to input or output, whichever is

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less); -dx/dt and -(dx/dt)/100, 5 %

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+24 V/120 mA, -24 V/80 mA, 5 W

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One year parts and labor on defects

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in materials and workmanship

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Stanford Research Systems

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phone: (408)744-9040

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www.thinkSRS.com

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