summaryrefslogtreecommitdiff
path: root/174/CH4/EX4.3
diff options
context:
space:
mode:
Diffstat (limited to '174/CH4/EX4.3')
-rwxr-xr-x174/CH4/EX4.3/example4_3.sce45
-rwxr-xr-x174/CH4/EX4.3/example4_3.txt4
2 files changed, 49 insertions, 0 deletions
diff --git a/174/CH4/EX4.3/example4_3.sce b/174/CH4/EX4.3/example4_3.sce
new file mode 100755
index 000000000..bd864c709
--- /dev/null
+++ b/174/CH4/EX4.3/example4_3.sce
@@ -0,0 +1,45 @@
+// To design multirange dc voltmeter
+// Modern Electronic Instrumentation And Measurement Techniques
+// By Albert D. Helfrick, William D. Cooper
+// First Edition Second Impression, 2009
+// Dorling Kindersly Pvt. Ltd. India
+// Example 4-3 in Page 60
+
+
+clear; clc; close;
+
+// Given data
+R_m = 100; // internal resistance of movement
+I_fsd = 1*(10^-3); //full-scale current in Amp
+V_1 = 10; //different ranges in volt
+V_2 = 50;
+V_3 = 250;
+V_4 = 500;
+
+//Calculations
+
+//For the 10-V range
+R_T = V_1 / I_fsd;
+R_4 = R_T - R_m;
+printf("The value of the resistance R_4 = %d ohm\n",R_4);
+
+//For the 50-V range
+R_T = V_2 / I_fsd;
+R_3 = R_T - (R_4 +R_m);
+printf("The value of the resistance R_3 = %dk ohm\n",R_3/1000);
+
+//For the 250-V range
+R_T = V_3 / I_fsd;
+R_2 = R_T -(R_3 +R_4 +R_m);
+printf("The value of the resistance R_2 = %dk ohm\n",R_2/1000);
+
+//For the 500-V range
+R_T = V_4 / I_fsd;
+R_1 = R_T - (R_2 +R_3 +R_4 +R_m);
+printf("The value of the resistance R_1 = %dk ohm",R_1/1000);
+
+//Result
+// The value of the resistance R_4 = 9900 ohm
+// The value of the resistance R_3 = 40k ohm
+// The value of the resistance R_2 = 200k ohm
+// The value of the resistance R_1 = 250k ohm
diff --git a/174/CH4/EX4.3/example4_3.txt b/174/CH4/EX4.3/example4_3.txt
new file mode 100755
index 000000000..0fd228fb5
--- /dev/null
+++ b/174/CH4/EX4.3/example4_3.txt
@@ -0,0 +1,4 @@
+ The value of the resistance R_4 = 9900 ohm
+The value of the resistance R_3 = 40k ohm
+The value of the resistance R_2 = 200k ohm
+The value of the resistance R_1 = 250k ohm