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B4-nass-instrumentation/detail_instrumentation_2_choice.m

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+%% Clear Workspace and Close figures
+clear; close all; clc;
+
+%% Intialize Laplace variable
+s = zpk('s');
+
+%% Path for functions, data and scripts
+addpath('./src/'); % Path for scripts
+addpath('./mat/'); % Path for data
+addpath('./STEPS/'); % Path for Simscape Model
+addpath('./subsystems/'); % Path for Subsystems Simulink files
+
+%% Colors for the figures
+colors = colororder;
+freqs = logspace(1,4,1000); % Frequency vector [Hz]
+
+%% Load computed requirements
+load('instrumentation_requirements.mat')
+
+Cp = 8.8e-6; % Capacitive load of the two piezoelectric actuators
+f0 = 5e3; % Wanted low signal bandwidth [Hz]
+Ro_max = 1/(2*pi*f0 * Cp); % Maximum wanted output impedance [Ohm]
+
+%% Slew-rate specifications - Triangular scan
+Vpp = 170; % Full voltage scan [V]
+f0 = 100; % Repetition rate of the triangular scan [Hz]
+
+slew_rate = 1e-3*2*Vpp*f0 % Required slew rate [V/ms]
+
+%% Maximum Output Current - Triangular scan
+max_current = 2*Vpp*f0*Cp % [A]
+
+delta_V = 20; % +/-10 V
+Fs = 10e3; % Sampling Frequency [Hz]
+max_adc_asd = 11e-6; % V/sqrt(Hz)
+
+min_n = log2(delta_V/(sqrt(12*Fs)*max_adc_asd))
+
+%% Estimate quantization noise of the ADC
+delta_V = 20; % +/-10 V
+n = 16; % number of bits
+Fs = 10e3; % [Hz]
+
+q = delta_V/2^n; % Quantization in [V]
+q_psd = q^2/12/Fs; % Quantization noise Power Spectral Density [V^2/Hz]
+q_asd = sqrt(q_psd) % Quantization noise Amplitude Spectral Density [V/sqrt(Hz)]