Guide to Linear Encoders Due to the discontinuation of the Keyence "VP-90," Makome Laboratory is proposing replacement products. As a replacement for the Keyence "VP-90," Makome Laboratory recommends the magnetic linear encoder "SI-140" system. The "SI-140" system utilizes magnetism to measure a scale that is magnetized alternately and evenly with N and S poles, in a non-contact manner. Because it uses magnetism, it can measure lengths without being affected by non-magnetic materials. The head has a protection structure rated IP67 (compliant with IEC standards). The output is in A and B phase with a resolution of 0.1mm. When using an incremental measurement device with a 4x multiplier, it can be used at 0.025mm. The detection distance between the head and the scale is 4±3mm (1 to 7mm), allowing for some variation in distance. The output circuit is a MOS FET open-drain output, which can be extended up to 5m. Additionally, there is a separate line driver output type that can be extended up to 100m. *The MOS FET open-drain is almost equivalent to an NPN transistor output. Please contact us for evaluation samples.

You can now freely choose the length of the magnetic scale, which has been highly requested. If you do not need the magnetic scale or would like to order it in a custom length, please request it with SI-140-X0. For more details, please refer to the instruction manual.

GS-500 Series We have newly added "CAN communication" specifications to our magnetic guide sensors. In addition to the constant output of straight guidance mode and left/right branching mode outputs, the parallel (15-bit) output is also continuously available, allowing for the optimal signal to be captured as needed. Furthermore, with this development, we have redesigned the case to allow for the selection of the detection surface and cable exit direction. This is expected to provide flexible support for compact and low-floor vehicle designs. The case is fully metal (IP67 structure) and has a robust design. *Concerns about parts procurement were raised, but since around August 2022, we have established a timeline for mass production shipments and have begun shipping samples. If you are interested, please feel free to contact us using the form below. Requests for meetings or evaluation samples can also be made here. GS-530 (9-bit) 108×30×20 GS-550 (15-bit) 168×30×20 CAN2.0A communication speed 1Mbps MAX

At Makome Research Institute, we offer rental samples and demo products for evaluating standard products. ● Considering adoption but want to compare with existing products before purchasing. ● I'm anxious about whether it will fit our equipment since I'm using a magnetic sensor for the first time. ● I would like to evaluate it in a real environment. (If it's a harsh environment, please inform us of the usage conditions in advance.) *Please understand that there may be times when we cannot provide items immediately due to them being on loan. Additionally, some products may not be available for rental, so please contact your sales representative for more details.

We have commercialized a rotary potentiometer and encoder that apply our company's linear encoder detection technology. It detects the magnetic field of the N and S poles and outputs the rotational movement as pulses or analog signals. By using a two-pole magnet, we have achieved a detection distance (the gap between the sensor and the magnetic body) of 8mm ± 2mm. It allows for eccentricity within Φ1mm (±0.5mm). Due to the lack of mechanical connection, it is resistant to vibration and shock, making it suitable for use in rotating parts of robotic arms and construction machinery without coupling. Additionally, due to the absence of friction resistance, it can also be applied to tension control for films and paper. We have evaluation samples available, so please feel free to contact us. *Please note that due to limited quantities, there may be times when it takes longer to lend them out.