公开(公告)号：WO1994006035A1

公开(公告)日：1994-03-17

申请号：PCT/US1993008144

申请日：1993-08-30

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  RUTKIEWICZ, Robert, D.

IPC: G01W01/00

CPC classification number: G01W1/14 ,  G08B19/02 ,  Y02A90/14

Abstract: The snow sensor utilizes a single temperature sensor (10) and heating element (12) in thermal contact with the sensing surface (11). The signal from the temperature sensor (10) and the signal from the heating element (12) are input to a standard microprocessor integrated circuit (18). The microprocessor (18) continuously compares the two signals to accurately assess whether snow is present on the sensing surface (11). The snow sensor eliminates the requirement for a moving airmass to accurately assess the presence of snow on the sensing surface. The snow sensor does not ingest snow nor require ice formation to operate. The snow sensing surface (11) and the sensor housing (30) are weather and debris resistant. The snow sensor may be mounted in an elevated position or in any suitable location proximate an area to be monitored. The snow sensor of the present invention serves as an integral part of a closed loop control system for numerous snow removal applications.

Abstract translation: 雪传感器利用与感测表面（11）热接触的单个温度传感器（10）和加热元件（12）。 来自温度传感器（10）的信号和来自加热元件（12）的信号被输入到标准微处理器集成电路（18）。 微处理器（18）连续地比较两个信号以准确地评估感测表面（11）上是否存在雪。 雪传感器消除了移动空气质量准确评估感测面上雪的存在的要求。 雪地传感器不会积雪，也不需要冰块形成。 雪感测表面（11）和传感器壳体（30）具有耐候性和耐碎屑性。 雪传感器可以安装在提升位置或者靠近待监视区域的任何合适的位置。 本发明的雪传感器作为用于众多除雪应用的闭环控制系统的组成部分。

公开(公告)号：EP0746779A1

公开(公告)日：1996-12-11

申请号：EP93920415.0

申请日：1993-08-30

Applicant: ROSEMOUNT INC.

Inventor： RUTKIEWICZ, Robert, D.

IPC: G01W1 ,  G08B19

CPC classification number: G01W1/14 ,  G08B19/02 ,  Y02A90/14

Abstract: The present invention utilizes a single temperature sensor and heating element in thermal contact with the sensing surface. The signal from the temperature sensor and the signal from the heating element are input to a standard microprocessor integrated circuit. The microprocessor continuously compares the two signals to accurately assess whether snow is present on the sensing surface. The present invention eliminates the requirement for a moving airmass to accurately assess the presence of snow on the sensing surface. The present invention does not ingest snow nor require ice formation to operate. The snow sensing surface and the sensor housing are weather and debris resistant. The present invention may be mounted in an elevated position or in any suitable location proximate an area to be monitored. The present invention serves as an integral part of a closed loop control system for numerous snow removal applications.

Abstract translation: 雪传感器利用与感测表面（11）热接触的单个温度传感器（10）和加热元件（12）。 来自温度传感器（10）的信号和来自加热元件（12）的信号被输入到标准微处理器集成电路（18）。 微处理器（18）不断地比较这两个信号以准确地评估传感表面（11）上是否存在雪。 雪传感器消除了对移动空气质量的要求，以精确评估传感表面上的积雪。 雪传感器不会摄入雪，也不需要结冰来操作。 雪感测表面（11）和传感器外壳（30）具有耐气候性和耐碎片性。 雪传感器可以安装在升高位置或靠近要监测的区域的任何合适的位置。 本发明的雪传感器用作大量除雪应用的闭环控制系统的组成部分。