Electronic environment sensing instrument having an analog indicator
AssigneeMatador International Inc.
InventorsPing-Han Lee, Li-Zhen Wang
Life of this patent
Estimating the term…
Abstract
An electronic environment sensing instrument having an analog indicator has a casing having a front panel with a scale, an electronic sensing and driving assembly mounted in the casing, a needle and a DC power supply. The electronic driving indicator assembly has a detecting and driving circuit to sense and measure an environmental parameter outside the casing and generates a control signal, a drive unit to receive the control signal and rotate a specific amount in a specific direction based on the control signal and a gear assembly connected to and driven by the drive unit. The needle is attached to and driven by the gear assembly and points to a specific value on the scale corresponding to the sensed environmental parameter.
Claims20
A electronic environment sensing instrument having an analog indicator, comprising:
- a casing having a front panel with
- a front face having at least one scale;
- a rear face;
- and
- a central through hole;
- an electronic driving indicator assembly attached to the rear face of the front panel and having
- a detecting and driving circuit;
- a drive unit;
- and
- a gear assembly, wherein the drive unit is connected between the gear assembly and the detecting and driving circuit;
- a needle connected to the gear assembly of the electronic driving indicator assembly outside the front face of the front panel;
- and
- a DC power supply attached to the rear face of the casing and connected to the drive unit and the detecting and driving circuit.
Dependencies are inferred from the claim text.