RC/RL low-pass filter

Extraits de code

curl "https://api.oanor.com/rcfilter-api/v1/lowpass" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/rcfilter-api/v1/lowpass", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/rcfilter-api/v1/lowpass");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/rcfilter-api/v1/lowpass",
    headers={"x-oanor-key": "oanor_test_..."}
)

Exemple de réponse

Une réponse réelle de ce endpoint, capturée lors du dernier contrôle de santé.

{
    "data": {
        "gain": 0.70710665,
        "note": "First-order low-pass: fc = 1/(2πRC) (RC) or R/(2πL) (RL); |H| = 1/√(1+(f/fc)²); at fc the gain is −3.01 dB and phase −45°.",
        "inputs": {
            "c": 1.0e-6,
            "r": 1000
        },
        "gain_db": -3.010302,
        "topology": "RC",
        "phase_deg": -45.00001,
        "filter_type": "lowpass",
        "at_frequency_hz": 159.155,
        "time_constant_s": 0.001,
        "cutoff_frequency_hz": 159.15494309,
        "angular_cutoff_rad_s": 1000
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:30.768Z",
        "request_id": "49f0cc64-ca90-4467-944f-38d8675039c5"
    },
    "status": "ok",
    "message": "RC/RL low-pass filter",
    "success": true
}