基本信息:
- 专利标题： Photoelectric sensor
- 专利标题（中）：光电传感器
- 申请号：JP2012259102 申请日：2012-11-27
- 公开(公告)号：JP2014107698A 公开(公告)日：2014-06-09
- 发明人： UOZUMI TOYOICHI , YAMAZAKI KENTARO
- 申请人： Keyence Corp , 株式会社キーエンス
- 专利权人： Keyence Corp,株式会社キーエンス
- 当前专利权人： Keyence Corp,株式会社キーエンス
- 优先权： JP2012259102 2012-11-27
- 主分类号： H03K17/78
- IPC分类号： H03K17/78 ; G01V8/12
摘要：
PROBLEM TO BE SOLVED: To provide a photoelectric sensor that allows an intuitive sensitivity adjustment and a ready awareness of an adjustment state while ensuring a wide dynamic range.SOLUTION: The photoelectric sensor includes: light projection means for generating pulsed detection light L1; a light receiving element for receiving the detection light L1 and generating a light reception signal depending on the amount of light received; a light reception circuit 5 for amplifying the light reception signal and superimposing the light reception signal on a reference level to generate a determinate light reception signal; signal strength adjustment means having a trimmer resistor 51 that is a variable resistor connected to the light reception circuit 5 and has a resistance value R3 changing with rotational position of an operating element, wherein the trimmer resistor 51 changes the light reception signal component of the determinate light reception signal with the resistance value R3; determination means for generating a determination signal on the basis of a result of comparison of the determinate light reception signal with a determination threshold; margin calculation means for computing a margin M by a ratio of the light reception signal component of the determinate light reception signal to a difference between the determination threshold and the reference level; and margin display means for displaying the margin M.
摘要（中）：
要解决的问题：提供一种光电传感器，其能够在确保宽的动态范围的同时，进行直观的灵敏度调整和准备好的调节状态。解决方案：光电传感器包括：用于产生脉冲检测光L1的光投射装置; 光接收元件，用于接收检测光L1并根据所接收的光量产生光接收信号; 光接收电路5，用于放大光接收信号并将光接收信号叠加在参考电平上以产生确定的光接收信号; 信号强度调节装置，具有作为连接到光接收电路5的可变电阻器的微调电阻器51，并且具有随操作元件的旋转位置而变化的电阻值R3，其中，微调电阻器51改变确定的光接收信号分量 具有电阻值R3的光接收信号; 确定装置，用于根据确定的光接收信号与确定阈值的比较结果产生确定信号; 用于通过所述确定光接收信号的光接收信号分量与所述确定阈值与所述参考电平之间的差的比率来计算余量M的余量计算装置; 以及用于显示余量M的余量显示装置。
公开/授权文献:
- JP6000826B2 光電センサ 公开/授权日：2016-10-05
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03K | 脉冲技术 |
| ------H03K17/00 | 电子开关或选通，即不通过通断接触的 |
| --------H03K17/51 | .按使用特殊元件区分的 |
| ----------H03K17/78 | ..应用光电子器件，即电耦合或光耦合的光发射和光电器件作为有源元件的 |