ホール磁気回路選定ツール
Enter magnet dimensions, material grade and operating temperature to directly compute the Hall operate stroke, release stroke and hysteresis; the dual-Hall ring scheme gives a quadrature phase-error budget and breaks the error into four items - air gap, mounting, threshold mismatch and ring pole pitch - so you know where the tolerance budget should go.
デバイス
実装方式
磁石
使用条件
形状概略図
ストローク結果
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ストローク–磁界曲線
SC245X 4段比較
| 型番 | Bop range (Gs) | S_op(mm) | S_rp(mm) | 全温度域バンド(mm) | 判定 |
|---|
Compare grades under the same magnet and mounting. Higher-sensitivity parts give longer operating stroke but are also more sensitive to stray fields.
Device (two of same type)
検知モード
多極リング
公差予算
形状概略図
直交結果
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Error-source breakdown
| 誤差源 | 誤差(°電気角) | 比率 | 伝導メカニズム |
|---|
2 路出力波形
極対数スイープ
| P | 実装角(°機械) | Amplitude (Gs) | ミスマッチ° | 実装° | エアギャップ° | 最悪° | 2 個間隔(mm) | 判定 |
|---|
Pole-pair count is the parameter customers change most often, and the same mechanical tolerance is amplified P times - this table directly judges whether a given ring scheme meets the target quadrature accuracy. The "two-device spacing" is the chord at 90 deg electrical; if it is smaller than the package footprint width it is flagged red, meaning the two devices cannot be placed side by side at that radiuscannot be placed side by side physically。
デバイス
構造
磁石
結果
—
温度スイープ
デモ種別
デバイス
磁石
使用条件
位置関係アニメーション
Below the position view is the field scale: the horizontal axis is the sensing component in Gauss (Gs); darker blocks mean stronger field and the sign shows field direction. The two vertical lines are the operate threshold Bop and release threshold Brp; the white dot is the measured field at the magnet‘s current position. The block beside the Hall in the figure shares the same colour scale as the ruler, so you can read them off directly.
磁界と出力状態
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計算例(静的、引用可)
Results below are computed by the same kernel at build time with identical parameters — use them to cross-check trend and magnitude.
近接スイッチ計算例
φ10×5 mm cylindrical NdFeB 42SH, full temperature range -40 to 150 °C, stroke boundary under air-gap tolerance.
| 型番 | Bop typ. / max (Gs) | 実装方式 | 動作ストローク (mm) | リリースストローク (mm) | ヒステリシス (mm) | 全温度域ストロークバンド (mm) |
|---|---|---|---|---|---|---|
| SC2450 | 25 / 35 | 端面正対 | 29.09 | 35.04 | 5.96 | 24.14 ~ 36.13 |
| SC2451 | 100 / 120 | 端面正対 | 17.13 | 18.27 | 1.14 | 14.88 ~ 19.35 |
| SC2452 | 180 / 200 | 端面正対 | 13.46 | 15.41 | 1.95 | 11.98 ~ 14.65 |
| SC2455 | 220 / 250 | 端面正対 | 12.34 | 13.78 | 1.44 | 10.84 ~ 13.63 |
| SC2450 | 25 / 35 | 平面横断 | 23.40 | 28.49 | 5.09 | 18.91 ~ 29.40 |
| SC2451 | 100 / 120 | 平面横断 | 7.84 | 7.96 | 0.11 | 7.57 ~ 13.29 |
| SC2452 | 180 / 200 | 平面横断 | 7.34 | 7.64 | 0.30 | 7.06 ~ 7.53 |
| SC2455 | 220 / 250 | 平面横断 | 7.14 | 7.39 | 0.25 | 6.81 ~ 7.37 |
デュアルホール直交計算例
Multi-pole ring Ro 20 / Ri 14 / L 6 mm, air gap 2 mm, both Hall devices are SC2943, Mounting tolerance +/-0.1 mm, air-gap deviation +/-0.2 mm, ring pole-pitch error +/-1 deg, target quadrature accuracy +/-10 deg electrical.
| 極対数 P | 検知モード | 実装角度 (°機械) | 磁界ピーク (Gs) | 閾値ミスマッチ (°) | 実装誤差 (°) | エアギャップ偏差 (°) | 最悪合計 (°) | 直交 ±10° |
|---|---|---|---|---|---|---|---|---|
| 2 | ラジアル | 45.00 | 3187 | 0.04 | 0.52 | 1.40 | 2.96 | PASS |
| 2 | アキシャル | 45.00 | 2936 | 0.04 | 0.67 | 1.52 | 3.24 | PASS |
| 4 | ラジアル | 22.50 | 3221 | 0.07 | 1.04 | 2.98 | 5.09 | PASS |
| 4 | アキシャル | 22.50 | 3061 | 0.09 | 1.35 | 3.31 | 5.75 | PASS |
| 6 | ラジアル | 15.00 | 3063 | 0.11 | 1.56 | 4.98 | 7.65 | PASS |
| 6 | アキシャル | 15.00 | 2915 | 0.13 | 2.02 | 5.94 | 9.08 | PASS |
| 8 | ラジアル | 11.25 | 2779 | 0.14 | 2.08 | 7.24 | 10.47 | FAIL |
| 8 | アキシャル | 11.25 | 2582 | 0.17 | 2.70 | 8.93 | 12.80 | FAIL |
| 10 | ラジアル | 9.00 | 2449 | 0.18 | 2.60 | 9.62 | 13.41 | FAIL |
| 10 | アキシャル | 9.00 | 2195 | 0.22 | 3.37 | 12.03 | 16.62 | FAIL |
| 12 | ラジアル | 7.50 | 2118 | 0.23 | 3.13 | 12.08 | 16.43 | FAIL |
| 12 | アキシャル | 7.50 | 1820 | 0.29 | 4.04 | 15.13 | 20.46 | FAIL |
Magnet material temp drift
| 磁石材料 | Br@20°C (T) | Br@150°C (T) | 低下 | 最高動作温度 |
|---|---|---|---|---|
| NdFeB N42 | 1.300 | 1.097 | -15.6% | 80 °C |
| NdFeB 42SH | 1.300 | 1.114 | -14.3% | 150 °C |
| NdFeB N52 | 1.445 | 1.220 | -15.6% | 80 °C |
| Ferrite Y30 | 0.390 | 0.294 | -24.7% | 250 °C |
| Ferrite Y35 | 0.410 | 0.309 | -24.7% | 250 °C |
| SmCo YXG-26H | 1.035 | 0.988 | -4.5% | 350 °C |
If margin still worries you, or you want parameters tailored to your magnet and structure, just send the magnet drawing and mounting dimensions.
選定依頼を送信関連ページ: ラッチ型ホールの選定表 · ラッチ型ホール IC · 車載ホールラッチのメーカー選び · お問い合わせ