[muRata]Rotary Sensor Information

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	Various Characteristics

	Bias Voltage (Temperature Characteristic)
	Bias Voltage (Difference between Voltage at Normal Rotation and at Reverse Rotation)
	Input Resistance (Temperature Characteristic)
	Allowable Power Dissipation Characteristic

Bias Voltage (Temperature Characteristic)

	Bias voltage is an output obtained by bringing the magnetic balance into uniformity in the potential divider circuit. This value is equal to one-half of the supply voltage.

The temperature characteristic varies with the sensor's magnetic circuit. The temperature coefficient is greater when the gap is 0.6 mm than when it is 0.2 mm.

Bias Voltage (Difference between Voltage at Normal Rotation and at Reverse Rotation)

	The bias voltage at reverse rotation differs by a maximum of 10 mV from that at normal rotation when the applied voltage is 5 V.

The magnetic field generated by the permanent magnet incorporated in the sensor changes with the rotation of the pulser (gear). The change in the magnetic field generates eddy currents in the gear (conductor), producing a slight demagnetizing field. This produces a difference between the bias voltage at normal rotation of the gear and that at reverse rotation.

<Examples of the difference between the voltage at normal rotation and that at reverse rotation /gap-temperature characteristic >



Due to the gap difference, the difference between bias voltage at normal rotation and that at reverse rotation is greater when the gap is 0.2 mm than when it is 0.6 mm.

	*The eddy current level varies with the target material, construction, and rotation speed. Contact us for details.

Input Resistance (Temperature Characteristic)

	The input resistance varies with the magnetic circuit incorporated into the sensor and element design values. We can provide a high-temperature type (high-resistance type) with custom specifications. Contact us for details.

<Example of input resistance temperature characteristic> The temperature coefficient is approximately -2%/°C.

Allowable Power Dissipation Characteristic

The maximum allowable applied voltage is 5.5 V. The output voltage is proportional to the applied voltage. When current flowing in the elements exceeds the allowable limit, the element temperature rises due to generation of Joule heat.

<Typical I-V characteristics>