Applications: Transmission Testing

Rotation is detected from a gear sensor by mounting a gear on the shaft, etc., and the pulses are converted to analog signals.
Analog data is input to a logger, PC, oscilloscope, etc. for evaluation testing and development.。

Gear Sensor
Pickup Sensors
IMG, GP, FDP Series

Gear

→
Pulse Signal

Measuring instrument

→
Analog output
Alarm output
CAN
RS-485
etc.

PC

Logger

Oscilloscope
etc.

What we can do with measurement
- Rotation speed of each input and output can be measured.
- The unique Periomatic™ calculation method enables high speed response with high accuracy to startup from a standstill, ultra-low speed, high speed, and sudden speed changes (sudden acceleration, sudden stop).
- The FRM-3921 tachometer can also be used to measure the input/output ratio of the transmission.
- Independent rates can be set for the two input channels, allowing calculation of speed ratios even for gears with different numbers of teeth or sensors with different resolutions.
- With the PSA series DC ammeter, real-time measurement of PWM drive current of solenoid valves is also possible.

Gear tooth sensor
- The gear sensor is capable of detecting from 0Hz, allowing detailed measurement of motion at the start and at the stop of motion.
- The sensor uses a two Hall element differential method for the sensing section, so it is not affected by the surrounding magnetic field and can perform stable detection with reduced jitter.
- Line driver output option, which is less susceptible to transmission noise, is also available. (Gear sensor IMG series)

Selection Points
- Analog output update 0.1ms～(SPD), 0.5ms～(TDP), 1ms～(FRM)
- CAN, RS-485, RS-232C, Ethernet output also available
- Unique Periomatic™ calculation method: High-precision, high-speed response to start of motion from standstill, ultra-low speed, high-speed, and sudden speed change (sudden acceleration, sudden stop), etc.
- Optional line driver signal support: Highly resistant to transmission noise
- Gear sensor capable of sensing from low rotation speed (0 Hz)

Products

	Points	Overviews
IMG Series Magnetic Gear Speed Sensor Product page	Line driver output Semi-open collector output Differential (balanced) CMOS logic output Wide power supply range Conical press	- Stable output by eliminating magnetic field noise and suppressing jitter in the detection section by using a two Hall element differential method. - The detection surface is a completely sealed metal case with an integrated structure that is IP67 compliant, making it suitable for environments where water or oil may adhere to it. - Measurable frequency range: 0Hz to 20kHz - Operating temperature range: -20°C to 105°C
FDP Series Magnetic Gear Speed Sensor Product page		- Consists of a single Hall element, magnet, and signal processing circuit. - The detection surface is a completely sealed metal case with an integrated structure, IP67 compliant, and can be used in environments where water or oil adheres to the sensor.
TDP-4921/TDP-4931 Speedmeter Product page	RS-485 RS-232C Analog output Alarm output BCD output LINKSHIP support	- 16bit analog output with 0.5ms update - Various options such as RS-232C/RS-485/BCD output - Up to 4 alarm outputs can be mounted - Power supply for sensor 12V(standard)/5V(option) - 48x96 size panel meter with scaling function
SPD-4801 Speedmeter/Counter [switchable] Product page	RS-485 Modbus CAN Analog output Alarm output Zero shift Span shift Count Stop/Start LINKSHIP support	- 48x96 size speed/totalizer [switchable] for frequency meter, tachometer, flowmeter, speed meter, totalizer, etc. - Simultaneous output of 16-bit analog output with 0.1ms update and CAN with 1ms update - Logging/setting via USB - Trigger level, hysteresis, pull-up, and low-pass filter can be adjusted and set - Power supply for sensor 12V/5V (optional) - Compatible with LINKSHIP (Coco Research's measurement management software: free of charge)
SPD-2401 Speedmeter/Counter [switchable] Product page SPDL-2401 (Low-priced version) Product page	RS-485 Modbus CAN Analog output Alarm output Zero shift Span shift Count Stop/Start LINKSHIP support	- 24x48 size speed/totalizer [switchable] for frequency meter, tachometer, flowmeter, speed meter, totalizer, etc. - Simultaneous output of 16-bit analog output with 0.1ms update and CAN with 1ms update. (SPDL outputs 40ms updates for both analog output and CAN) - Logging, setting, and power supply available via USB - Trigger level, hysteresis, pull-up, and low-pass filter can be adjusted and set - Power supply for sensor 12V/5V (optional) - Compatible with LINKSHIP (Coco Research's measurement management software: free of charge)
SPD-HD Pocketable[Handy] Speedmeter/Counter [switchable] Product page	RS-485 Modbus CAN Analog output Alarm output Zero shift Span shift Count Stop/Start LINKSHIP support	- Speed/totalizer [switchable] for frequency meter, tachometer, flowmeter, speed meter, totalizer, etc. - Handy type for on-site use such as shipping/performance inspection, equipment inspection, operation check, etc. - Simultaneous 16-bit analog output (0.1 ms) and CAN output (1 ms) - Supports 2-way power supply (alkaline battery/AC adapter) - Adjustable trigger level, hysteresis, pull-up, and low-pass filter settings - 12V/5V power supply for sensors (depending on connector type) - Supports "LINKSHIP" for logging/setting via USB - Flexible connectors such as unique retractable BNC and terminal block
FRM-3921 Rotation Speed Ratio Mete Product page	RS-232C Alarm output 2ch Analog output BCD output RS-485	- Inputs signals from 2 channels and measures the speed ratio between the channels. - Analog output proportional to speed ratio/ratio: Fastest 1ms update - Analog output proportional to speed per ch