Manufacturer of Angle, Position, Speed, Tilt and Current Sensors
Automotive seats are, either manually or automatically, moved on an associated linear track assembly. Seat position sensors are used to provide comfort by allowing automatic seat adjustment, safety by controlling airbag deployment or convenience through memory functions.
The MT-150 series allows up to 150 turns mechanical travel to feedback linear position of the seat, while the MT-5 series has been designed for seat angle position sensing applications. Both series are sealed and feature a clutch function at end stops. They can be easily customized to meet customer requirements. Absolute position is mechanically stored so there is no need of active electronics thus avoiding problems such as memory being lost by current shortages.
For applications with functional safety requirements, Piher provides non-contacting multiturn rotary sensors based on Hall-effect and inductive technology.
Absolute multi-turn sensing is especially valuable in systems where the position must remain known after power loss or during power-down. Piher multi-turn position sensors mechanically store position, helping avoid loss of memory caused by current interruptions and reducing the need for active electronics.
Piher multi-turn potentiometer sensors are suitable for applications where absolute mechanical position must be retained without active electronics, backup batteries or software memory. Typical applications include:
Automotive
Industrial and automation
| MT-150 | MT-5 | |
|---|---|---|
| Resistance values | 10k | 10k |
| Tolerance | ±20% | ±20% |
| Nominal power (at 50°C) | 0.15W | 0.15W |
| Linearity | ±5% | ±5% |
| Taper | Linear | Linear |
| Max voltage | 38 Vdc | n/a |
| Voltage range | 12.5% to 87.5% (±2.5%) | 0.25V to 4.75V |
| MT-150 | MT-5 | |
|---|---|---|
| Mechanical travel | 150 turns ±4 | up to 5 turns |
| Life (cycles) | 6.000 | 8.000 |
| MT-150 | MT-5 | |
|---|---|---|
| Temperature range | -40°C to +85°C | -40°C to +85°C |
