1 graph message_handler {
4 nodesep=0.1; /* inches */
18 style="rounded,filled"
21 k_spring [label="Spring constant"];
22 equipartition [label="Equipartition theorem"];
24 temperature [label="Temperature"];
26 photo_sense [label="Photodiode sensitivity"];
28 voltage_var_spring [label="Voltage variance\ndue to the spring"];
29 psd_fit [label="Fit power spectral density"];
30 psd_measured [label="Measured power spectral density"];
35 fillcolor="#ffd83d", /* drexel yellow */
38 thermocouple [label="Thermocouple voltage"];
39 contact_slope [label="Surface contact"];
40 voltage_noise [label="Voltage noise"];
42 /* Deeper calibration nodes */
44 fillcolor="#ff9999", /* reddish */
46 zp_calib [label="Z-piezo calibration"];
47 volt_calib [label="Voltmeter calibration"];
48 thermocouple_calib [label="Thermocouple calibration"];
50 k_spring -- equipartition;
52 equipartition -- temperature -- thermocouple;
53 equipartition -- photo_sense -- contact_slope;
54 equipartition -- voltage_var_spring -- psd_fit -- psd_measured -- voltage_noise;
56 temperature -- thermocouple_calib;
57 photo_sense -- zp_calib;
58 psd_measured -- volt_calib;