A hysteresis compensation method, in which a hysteresis error is calculated for an obtained weighing value by means of an ideal hysteresis error model, and an ideal compensation value is further calculated by means of an ideal hysteresis compensation model, wherein by using a proportional relationship between a system hysteresis error model established in hysteresis calibration and the ideal hysteresis error model, the ideal compensation value is corrected to a final compensation value. The method establishes a mapping relationship between the system's own hysteresis compensation and the ideal state hysteresis compensation, and realizes the transformation of a complicated hysteresis error compensation situation into an ideal hysteresis error compensation situation. The method not only has a good compensation effect for the hysteresis error compensation under ideal situations, but also can obtain an excellent hysteresis compensation effect under complicated hysteresis situations.

A modular wireless scale system comprising microscales comprises a master scale that may be configured to be used with one or more slave scales. The master scale includes a heavy load cell and a light load cell disposed on opposite sides of a cuboid master housing. The master scale housing encloses a master computer-based microcontroller, a wireless transceiver, an accelerometer, and a power source, and may optionally include a display. The master scale may be used as a stand-alone scale for weights up to the maximum weight supported by the heavy load cell and the scale housing. Each of the slave scales includes a heavy load cell supported by a cuboid housing that encloses a slave computer-based microcontroller, a wireless transceiver, and a power source.

Various methods and systems are provided for a drift-compensated force measurement. In one example, a method includes obtaining a single output voltage measurement from a strain gauge of an infant scale, the single output voltage reflective of a weight applied to the scale; obtaining a voltage measurement across each of four resistors of the strain gauge to determine four separate voltage measurements and determining a drift voltage based on the four separate voltage measurements; and outputting a corrected weight value determined based on a difference between the single output voltage and the drift voltage

Various methods and systems are provided for a drift-compensated force measurement. In one example, a method includes obtaining a single output voltage measurement from a strain gauge of an infant scale, the single output voltage reflective of a weight applied to the scale; obtaining a voltage measurement across each of four resistors of the strain gauge to determine four separate voltage measurements and determining a drift voltage based on the four separate voltage measurements; and outputting a corrected weight value determined based on a difference between the single output voltage and the drift voltage

A modular wireless scale system comprising microscales comprises a master scale that may be configured to be used with one or more slave scales. The master scale includes a heavy load cell and a light load cell disposed on opposite sides of a cuboid master housing. The master scale housing encloses a master computer-based microcontroller, a wireless transceiver, an accelerometer, and a power source, and may optionally include a display. The master scale may be used as a stand-alone scale for weights up to the maximum weight supported by the heavy load cell and the scale housing. Each of the slave scales includes a heavy load cell supported by a cuboid housing that encloses a slave computer-based microcontroller, a wireless transceiver, and a power source.

A hysteresis compensation method, in which a hysteresis error is calculated for an obtained weighing value by means of an ideal hysteresis error model, and an ideal compensation value is further calculated by means of an ideal hysteresis compensation model, wherein by using a proportional relationship between a system hysteresis error model established in hysteresis calibration and the ideal hysteresis error model, the ideal compensation value is corrected to a final compensation value. The method establishes a mapping relationship between the system's own hysteresis compensation and the ideal state hysteresis compensation, and realizes the transformation of a complicated hysteresis error compensation situation into an ideal hysteresis error compensation situation. The method not only has a good compensation effect for the hysteresis error compensation under ideal situations, but also can obtain an excellent hysteresis compensation effect under complicated hysteresis situations.