Power-generating type incorporating a permanent magnet and detection coil.
Placed in proximity to gear tooth tips or similar targets to extract a frequency signal proportional to the rotational speed.
The sensor features an integrally machined hermetic structure with an IP67 rating.
No Power Supply Required
Being a self-generating type, no sensor power supply is required.
AC Electrical Signal Output
High Reliability
While output voltage is theoretically proportional to the detection frequency,
unnecessary voltage rises are suppressed to enhance reliability.
| Output Voltage |  |
| Frequency (Speed) |
Measurement Up to High-Speed Ranges
When measuring only in high-speed ranges, practical operation is possible even with a larger gap.
Relationship between Gap and Output Voltage
(m = module = diameter / number of teeth)
| Output Voltage Vp-p |
 |
| Gap: mm |
No Rotation Adjustment Required
No angle adjustment work is required during installation.
Direct Cable Exit
High reliability without the need for connectors.
High Environmental Resistance IP67
Stable operation even in harsh environments exposed to water, oil, dust, vibration, and shock (motors, construction machinery, test equipment, etc.).
Detection surface features a hermetic monolithic metal case with a highly reliable structure.
 |
 |
 |
| Conventional Product (Our GP-2) | GP Series | |
| Tip has a cap | Hermetic monolithic metal case: Blocks hazardous liquids/gases |
| Cable features proprietary extraction technology Conical PressTM |  ＊Concept illustration of Conical Press |
Operation Check, Maintenance Inspection, and Testing of Backup Power Supplies / Emergency Generators
| Learn more > |
Various Measurements in Wind Tunnel Experiments: Vehicles, Architectural and Civil Engineering Structures, etc.
| Learn more > |
Speed Conversion to CAN
| Learn more > |
| Speed → CAN |
With gear sensors and measuring instruments/signal converters
|
| Name | Power-Generating Electromagnetic Pickup | ||
| Model | GP12-50 GP12S-50 [With Connector] |
GP12-120 GP12S-120 [With Connector] |
GP16-50 |
| DC Resistance | 2.1kΩ (TYP) | ||
| Impedance | 2.8kΩ [f=1kHz, m1, GAP 0.5mm] (TYP) | ||
| Output Voltage | 2.0Vp-p [f=1kHz, GAP 0.5mm, m1, RL 10kΩ] (TYP) 0.5Vp-p [f=1kHz, GAP 1.0mm, m1, RL 10kΩ] (TYP) 2.4Vp-p [f=1kHz, GAP 0.5mm, m1, RL ∞Ω] (TYP) 0.6Vp-p [f=1kHz, GAP 1.0mm, m1, RL ∞Ω] (TYP) f: Frequency, GAP: Air gap (distance between tooth tip and sensor), m: Module (diameter / number of teeth) |
||
| Detectable Frequency | 220Hz - 50kHz [GAP 0.5mm, m1, RL 10kΩ, Output 0.5Vp-p or more] | ||
| Target Gear | Module m = 1 - 3, Tooth width 3mm or more, Involute gear profile, Material: Magnetic material [S45C Carbon steel for machine structural use (JIS G4051), etc.] | ||
| Operating Temperature Range | -20℃ to +100℃ | ||
| Insulation Resistance | 50MΩ or more (With DC 500V megger, between all cables tied together and case) | ||
| Dielectric Strength | AC 500V 50/60Hz 1 min, between all cables tied together and case | ||
| Vibration Resistance | JIS C 60068-2-6 (Former JIS C 0040) [Frequency range 10-55Hz, double amplitude 1.5mm, sweep time 5 min, sweep cycles 20 times each in X, Y, Z directions, 60 times in total] | ||
| Shock Resistance | JIS C 60068-2-32 (Former JIS C 0044) [Drop floor concrete, drop height 1m, 2 times each] | ||
| Magnet Polarity | N Pole | ||
| Output Generation Polarity | Positive output to OUTPUT(+) when a magnetic body approaches the sensor tip. Lead wire: Red (+)/White (-). BNC connector outputs positive to the center contact. | ||
| Weight*1 | Approx. 100g: GP12-50 Approx. 115g: GP12S-50 |
Approx. 135g: GP12-120 Approx. 150g: GP12S-120 |
Approx. 135g |
| External Dimensions | M12 x L58 [1mm pitch] |
M12 x L130 [1mm pitch] |
M16 x L58 [1mm pitch] |
| Case Material | Brass (Nickel-plated) | ||
| Cable | 2m PVC 2-core shielded cable | ||
| Accessories | Nuts: 2 pcs, Toothed lock washer: 1 pc | ||
| Protection Rating | IP67 | ||
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from the body
[A] M12 P=1 screw thread
[B] Supplied nut and toothed lock washer
[C] Cable
BNC Connector Female
Center contact: +
Shield: Insulated from the body
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from the body
[A] M12 P=1 screw thread
[B] Supplied nut and toothed lock washer
[C] Cable
BNC Connector Female
Center contact: +
Shield: Insulated from the body
Red: OUTPUT +
White: OUTPUT -
Shield: Insulated from the body
[A] M16 P=1 screw thread
[B] Supplied nut and toothed lock washer
[C] Cable
|
| Extension Cable Model | Cable End | ||
| Total Length 1.5m | |||
| CSS-BB (BNC-BNC) | a: BNC HOT b: BNC GND |
||
 |
|||
| BNC Male | BNC Male | ||
| CSS-BC (BNC-Clip) | Red: SIG Black: Shield |
||
 |
|||
| BNC Male | Alligator Clip | ||
| CSS-AB (BNC-Y Terminal) | Red: SIG Black: Shield |
||
 |
|||
| BNC Male | Y-type crimp terminal 1.25Y-3 | ||
Combining gear sensors with our F/V converters, speed meters, high-speed pulse counters, etc., enables real-time measurement of rotational speed, angle, and more, while offering various benefits.
High Precision & High-Speed Response
PeriomaticTM F/V converters and speed meters achieve high precision and high-speed response under all conditions, from stop, ultra-low speed to high speed, rapid acceleration, and rapid deceleration.
| What is PeriomaticTM > |
Improved Measurement Reliability & Safety
Peace of mind with equipment matching from the same manufacturer. Factory setting changes are also available (measuring instruments).
*Image for illustrative purposes
Enclosed Customized Products
Check multiple channels at a glance. CAN/analog output also available
| Learn More > |
 |
 |
| Technical Info: View Types and Features of Pulse Signals > |
 |
| To Product Page |
Response: 0 - 20kHz
Temperature: -20 to +105℃
Power Supply: DC 4.5 - 25(17)V
Output Circuit:
Semi-open collector*1
Line driver
Differential (balanced) CMOS logic*2
Detects from 0Hz, and jitter suppression technology enables accurate rotational measurement
Line driver output type supports environments with long wiring
Equipped with a power supply reverse connection protection circuit to prevent failures caused by operational errors
 |
| To Product Page |
Response: 0 - 15kHz
Temperature: -20 to +80℃
Power Supply: DC 4.5 - 25V
Output Circuit:
Semi-open collector*1
Pursued ease of use as a general-purpose sensor
The output circuit is unbalanced, and an output voltage nearly equivalent to the sensor power supply voltage is obtained
Equipped with a semi-open collector output circuit so it can be connected directly even if the pull-up voltage at the signal receiving end is higher than the sensor output voltage
 |
| To Product Page |
Response: 10 - 30kHz
Temperature: -40 to +150℃
Power Supply: DC 5 - 12V
Output Circuit:
Open collector
Built-in amplifier, usable at high temperatures (150℃)
 |
| To Product Page |
Response: 0 - 15kHz
Temperature:
-40 to +140℃ (RFP16A Power supply < 15V)
-40 to +126℃ (RFP16A Power supply ≥ 15V)
-20 to +80℃ (RFP16D)
Power Supply: DC 9 - 25V
Output Circuit:
Semi-open collector*1
(Phase A/B or Speed/Direction Discrimination Signal)
Detects both forward and reverse directions with a single unit. Reduces work such as hole machining and mounting adjustment
*Compatible with m1/1.5/2 / Involute gear verified
 |
| To Product Page |
Response: 220 - 50kHz
Temperature: -20 to +100℃
Power Supply: No power supply required
Output Circuit:
Voltage output proportional to speed*3
0.5Vp-p or more
Self-generating type using a magnet and detection coil. No power supply required
Approaches the tooth tip of a gear, etc., and outputs a frequency signal proportional to the rotational speed
*1 Semi-open collector (open collector + pull-up): A proprietary output circuit developed by our company that allows direct connection even if the pull-up voltage at the signal receiving end is higher than the sensor power supply voltage.
Unlike a simple open collector, pulse output with a voltage close to the sensor power supply voltage can be obtained.
*2 Differential (balanced) CMOS logic can be used as an unbalanced signal. When used as a balanced signal, please check the power supply voltage and output voltage specifications.
*3 In principle, the output voltage of the GP type is proportional to speed, but the GP type prevents unnecessary increases in output to improve reliability.
