Electromagnetic Detector
MP-900/MP-9000シリーズ
The MP-900/MP-9000 series is a sensor that is primarily mounted on a rotating shaft and is positioned close to the tips of the detection gears to extract a frequency signal proportional to the rotational speed.
From low-cost, general-purpose types to special specifications such as oil-resistant and heat-resistant types, you can choose according to your application.
* Signal cables (excluding models with direct signal cable output), extension cables, and connectors are sold separately.
Features
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It has a simple structure, high rigidity, excellent environmental resistance, and is unaffected by vibrations, temperature, oil, and dust.
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Since it is a non-contact detection method, safe measurement is possible without applying load to the rotating body.
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It is a self-generating type, so it does not require a power source, making it ideal for on-site installation.
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Oil-resistant, high-temperature, ultra-small, long type, and a rich lineup.
Related products
| a) Distance between the detection gear. | The narrower the gap, the better it can detect low-speed rotation. It is usually used in the range of 0.5 to 1 mm. |
|---|---|
| b) Tooth profile of the detection gear | I recommend involute gears. |
| size of the detection gear | The unit used is the module (M). This is a value that determines the size of the teeth, and if the number of teeth is the same module, they can mesh together. It is recommended to use a module of 1 or more and a tooth width of 5 mm or more.
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| d) Material of the detection gear | Materials with a strong property of being attracted to magnets, namely ferromagnetic materials, are suitable. If selection is possible, I recommend S45C, SS400, SUS430, and FC400. |
MP-001 specifications
| number of teeth | 60 |
|---|---|
| reference pitch circle diameter | 60 |
| module | 1 |
| material | SS400 (Surface treatment trivalent chromate white) |
Our standard gear MP-001
The detection gear we provide is an involute gear with a module of 1 and 60 teeth.
List of Rotation Detector Classifications
Specification
| general-purpose | Universal with cable |
Low impedance |
oil-resistant | Oil-resistant and heat-resistant (150°C) |
Heat resistant (220°C) |
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| Model name | MP-9100 * | MP-911 | MP-9120 * | MP-930 | MP-935 | MP-936 |
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| DC resistance value *1 (Ω) | 850~950 | 850~950 | 85~105 | 850~950 | 600~700 | 800~900 |
| Inductance (mH) [1kHz, T.Y.P] |
300 | 300 | 30 | 300 | 270 | 370 |
| Impedance (Ω) [1kHz, T.Y.P] |
2k | 2k | 240 | 2k | 1.8k | 2.5k |
| Output voltage (Vp-p) [1kHz, T.Y.P] *2 |
above 2.0 | above 2.0 | above 2.0 | above 2.0 | above 2.0 | above 2.0 |
| Detectable frequency range *3/*4 (Hz) |
200~35,000 | 200~35,000 | 200~80,000 | 200~35,000 | 300~35,000 | 300~35,000 |
| Detection gear Compatible module |
1~3 | 1~3 | 1~3 | 1~3 | 1~3 | 1~3 |
| Operating Temperature Range | −10℃~+90℃ | −10℃~+90℃ | −10℃~+90℃ | −10℃~+90℃ | −10℃~+150℃ | −10℃~+220℃ |
| Vibration resistance *5 (m/s 2) | 196 | 196 | 196 | 196 | 196 | 196 |
| Impact resistance *6 (m/s 2) | 1960 | 1960 | 1960 | 1960 | 1960 | 1960 |
| Outline Dimensions | ![]() |
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| mass (g) | 90 | About 300 (including code) |
approximately 90 | About 100 (including code) |
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| Surrounding magnetic field (T) | 0.03以下 | 0.03以下 | 0.03以下 | 0.03以下 | 0.02以下 | 0.02以下 |
| Signal cable | None | 5m direct output M3 crimp terminal |
None | 0.5m direct output BNC |
Heat-resistant 1m direct output BNC |
Heat-resistant 1m direct output BNC |
| Price (including tax) |
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* The MP-910 has been discontinued. The successor model is the MP-9100. There are no changes to the basic specifications, but some external dimensions have been modified.
* The MP-912 has been discontinued. The successor model is the MP-9120. There are no changes to the basic specifications, but some external dimensions have been modified.
* The MP-937 has been discontinued.
| long form | Long body with cable |
Compact with cable |
small-sized | super small | for small modules | for medium module | |
| Model name | MP-940A * | MP-954 | MP-950 | MP-962 | MP-992 | MP-9200 * | MP-963 |
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| DC resistance value *1 (Ω) | 500~600 | 2.1 to 2.3k | 2.1 to 2.3k | 1.25k to 1.45k | 160~190 | 850~950 | 3.7 to 4k |
| Inductance (mH) [1kHz, T.Y.P] |
270 | 400 | 400 | 210 | 25 | 300 | 1800 |
| Impedance (Ω) [1kHz, T.Y.P] |
1.8k | 3.5k | 3.5k | 2.1k | 250 | 2k | 16,000 |
| Output voltage (Vp-p) *2 [1kHz, T.Y.P] |
above 2.0 | above 2.0 | above 2.0 | above 1.5 | greater than or equal to 0.5 | 0.6 or more (M=0.75) |
above 2.5 |
| Detectable frequency range *3/*4 (Hz) |
300~35,000 | 300~35,000 | 300~35,000 | 400~35,000 | 400~100,000 | 300~35,000 | 45~15,000 |
| Detection gear Optimal module |
1~3 | 1~3 | 1~3 | 1~3 | 1~3 | 0.5~1 | 3~10 |
| Operating Temperature Range | −10℃~+90℃ | −10℃~+90℃ | −10℃~+90℃ | −10℃~+90℃ | −10℃~+120℃ | −10℃~+90℃ | −10℃~+90℃ |
| Vibration resistance *5 (m/s 2) | 196 | 196 | 196 | 196 | 196 | 196 | 147 |
| Impact resistance *6 (m/s 2) | 1960 | 1960 | 1960 | 1960 | 1960 | 1960 | 1960 |
| Outline Dimensions | ![]() |
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| mass (g) | approximately 150 | approximately 90 | approximately 70 | approximately 50 | approximately 3 | approximately 90 | approximately 200 |
| Surrounding magnetic field (T) | 0.01以下 | 0.005以下 | 0.001以下 | 0.005以下 | 0.03以下 | ||
| Signal cable | None | 0.5m direct output BNC |
0.5m direct output BNC |
0.5m direct output BNC |
0.5m direct output FEP wire |
None | None |
| Price (including tax) |
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* The MP-940 has been discontinued. The successor model is the MP-940A.
* The successor to the MP-920 is the MP-9200. There are no changes to the basic specifications, but some external dimensions have been modified.
* The MP-967 has been discontinued.
*1 : The temperature coefficient of the DC resistance value is 0.4 %/°C.
*2 : Load resistance 10k Ω, M = 1, gap = 0.5mm (however, for MP-963, M=3, gap = 1.5 mm)
*3 : When using a 60P/R detection gear, the frequency notation (Hz) will match the rotational speed notation (r/min). <Frequency (Hz) = Rotational speed (r/min) ÷ 60 (s) × 60 (P/R)>
*4 : When using our standard gear MP-001. (However, for MP-963, when using a gear with M=3)
*5 : JIS E 4031, 5 types, 40Hz, X and Y directions for 2 hours each, Z direction for 4 hours.
*6 : 3 times in each X, Y, and Z direction.
related information
最終更新日:2025/09/03




















