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波司特精密儀器（上海）有限公司
波司特精密儀器（上海）有限公司
8821系列角度/速度傳感器、編碼器堅固
堅固，精確，電氣可靠，耐腐蝕，抗力強，防護等級IP65，，旋轉方向檢測
轉速傳感器/角位移傳感器
轉速傳感器
角位移傳感器
根據要求提供特殊版本
（更高的脈沖率，TTL輸出等）
| 型號A | 8821 |
| 工作方式A | |
| 量程選擇A | 轉速傳感器：60脈沖/轉（標準） 角位移傳感器：高達3600脈沖/轉 |
| 信號輸出A | TTLH > 2.5V - L < 2.5V |
| 保護等級A | IP65 |
| 工作溫度A | -10 ... +70 °C |
| 供電電壓A | 10 … 30 V DC |
| 電氣連接A | PG screwing with screened PVC cable |
| 可否連續旋轉A | Yes |
| 位移速度A | 8000 U/min |
| 具體特點A |
|
Incremental rotation sensors are used wherever displacement, positions or speeds have to be measured accurately.
They are therefore important interfaces between the mechanical and electronic parts of a machine.
Mechanically robust, electrically reliable and resistant to extreme ambient conditions; these are the outstanding properties offered by this sensor.
Typical applications include:
Description Rotary speed sensor
Model 8821 rotation sensor generates rectangular electrical pulses when the shaft is turned. An encoder disk is coupled to the shaft which is carried on 2 ball bearings. The light from an infrared diode passes through the encoder disk and the diaphragm disk (which is only present on the angle sensors).
The signals picked up by light-sensitive sensors are processed to yield rectangular signals.
The aperture disk generates an offset in the pulse sequences (only on angle sensors).
Description Angular displacement sensor
The rectangular pulses are output from channels A and B with a displacement of a quarter of a pulse (90°). This displacement allows the evaluation electronics to detect the direction of rotation. Electrical faults and vibrations do not lead to incorrect counts.An early warning output indicates that the light intensity is weakening. After this, the sensor can still be operated for some thousands of hours before it fails.A reference pulse, N, is also output. This is a single pulse for each rotation.
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