Patent No. 5207329, fast response and high accuracyResponse is compared to other Shibaura non-contact type sensors
- Patent No. 5207329
- Non-contact temperature detection using infrared rays
- Infrared detection type for fuser rollers
- Fast response and high accuracy with two compact thermistor elements arranged symmetrically
|Applications||Fuser rollers for copying machines, printers and multi-function printers (surface)|
|Operating temperature||-10 to +150℃ (on a compensation thermistor element, except connector)
Sensing part: -10 to +450℃ (based on detected temperature of an object)
The maximum operating temperature (150℃) shall not be exceeded.
|Thermal time constant||τ = 0.6 ±0.2 sec. (at 5mm from φ40 black roller)|
|Dissipation constant||δ ≒ 0.23mW/℃|
|Withstand voltage||500VAC for 1 sec.|
|Insulation resistance||≥100MΩ at 500VDC|
|Resistance||R25 = 220kΩ|
|B constant||B25/50 = 3750K|
Note 1) Values in the above table are for reference only.
Note 2) Unless otherwise stated, the thermal time constant and the dissipation constant are measured in still air.