普索贸易
首页  »  产品中心  »  推荐产品
PICOSTRAIN电阻测量

PICOSTRAIN电阻测量

国家:德国     主营产品:TDC - 时间数字转换器 UFC - 超声波流量转换器 Picocap电容测量 PICOSTRAIN电阻测量 PICOTURN转速传感器

普索贸易优势供应德国ACAM产品,拥有多年采购经验,所有VEP 产品均为原厂正品,型号齐全,品质保证,请放心采购!

PicoStrain - Stands for an innovative digital concept to measure resistance

Measuring strain gages is one of the big challenges for sensor technology, especially the weighing industry. Due to the small excitation of the strain gages on a load cell of only 0.2 % (2000 ppm) full scale, and due to the high resolution of 16 Bit and more, the resistors must be measured with a precision deeply in the ppb range. Reasonably, this can only be done measuring the ratio of the resistors.

Here the ® measuring principle is breaking new grounds compared to A/D converters. The ratio of the resistors is ascribed to a time interval measurement, not to a voltage difference like in Wheatstone bridges. The sensor's resistors together with a capacitor act as low-pass filters. The capacitor, charged to Vcc, is discharged through the sensor's resistors. The discharge time to trigger level (selectable) is precisely measured by a TDC (Time-to-Digital Converter).

 

The ® integrated circuits are realized without any analog component. Again, acam uses its TDC technology to set new standards in circuit design.

Advantages:

  • No elaborate supply of the strain gage
  • No need for a full-bridge, 2 resistors (half-bridge) are sufficient
  • Reduction of the current into the strain gage (total system current down to a few µA)
  • Easy temperature compensation
  • No reference voltage
  • Flexibility in update rate, precision and current consumption
  • Wide temperature range up to process limits

Applications:

  • Strain gage sensors
  • Force sensors
  • Pressure sensors
  • Torque wrenches
  • Digital load cells
  • Bathroom scales (solar and battery)
  • Kitchen scales (solar and battery)
  • Legal for trade scales (OIML, NTEP)

询价采购方式

咨询电话:0755-83698862 企业传真:0755-83698862 E-mail:wqy@pousoo.com QQ:201890635 点击这里给我发消息
咨询标题: 详细内容:
公司名称:
联 系 人:
手机号码:
电子邮件:
公司地址:
关于我们|品牌中心|服务中心|新闻资讯|联系我们|后台管理|
copyright 深圳市普索进出口贸易有限公司 Pousoo.com all rights reserved 粤ICP备16027462号
点击这里给我发消息