NTC and PTC, photoresistor and photodiode, potentiometer, pressure, piezo, hot-film, inductive, Hall — each sensor principle as a separate, measurable module. Trainees don’t look at the datasheet, but rather the characteristic curve: what the component does when temperature, light, displacement, or pressure changes.
The twelve modules can be freely connected via 2-mm safety sockets. A sensor can be measured in isolation—or connected with a transistor stage, shunt, and load to form a signal chain, just as it is actually configured in the vehicle.
Not at the schematic symbol. The exercises lead from individual measurements to the characteristic curve and from there to the question of why the control unit needs exactly this signal.
Passive versus active, resistance change versus voltage generation, analog versus digital. Anyone who can distinguish between these principles can correctly classify every new sensor in the vehicle—even the one that isn’t mounted on the front panel here.
The pulse-width frequency generator drives the encoder disc. The inductive sensor and Hall sensor provide their signals—which can be measured at various rotational speeds, just as crankshaft and wheel speed sensors do in a vehicle.
54 measuring sockets allow for more than just measuring individual components: sensors, transistor stages, and loads can be connected to form a complete chain. This makes it possible to see where a signal is lost.
| Temperature | NTC · PTC |
|---|---|
| Light | Photoresistor · Photodiode |
| Path & Print | Potentiometer ·Pressure Sensor |
| Rotational speed & Position | inductive · Hall |
| Other | Piezo (Knocking) · Hot Film |
| Frequency Generator | pulse width · drives encoder disc |
|---|---|
| precision shunts | 2 × |
| Gear | NPN Power Transistor |
| Voltage source | 5V DC |
| power supply | 10–15V DC / 1–3 A |
|---|---|
| Recommended power supply | TS10 · Art. No. 12 050 010 |
| Sound pressure level | < 70dB(A) |
| Sockets | 54 × Measurement · 4 × Power Supply |
|---|---|
| Dimensions W × D × H | 266 × 297 × 110mm |
| Weight, approx. | 2.0kg |
| form factor | Table · DIN-A4 Support Frame |
| Conformity |    |
The Sensor Trainer comes after the vehicle electrical system: the circuits must be in place before we can deal with signals. Next come the actuators—the other half of the chain.
Each sensor principle has its own module—from the switch, the simplest type of sensor, to the Hall sensor with a position signal. Includes a digital curriculum and the accompanying E-Learning.
A demonstration lasts about two hours. We record a characteristic curve together and show how the same principle applies to the vehicle.