5results about How to "With temperature compensation function" patented technology

The invention provides a low-power-consumption low-voltage detector, which relates to the technical field of detectors and comprises a detection branch, a bias branch and an output shaping module, the first end of the detection branch is connected with power supply voltage, the second end is connected with the bias branch, and the detection branch is used for outputting an overturning signal when the power supply voltage reaches set detection voltage; the bias branch is used for providing stable bias voltage for the detection branch and has a temperature compensation function; and the output shaping module is connected with the output end of the detection branch and is used for shaping the overturning signal and then outputting a detection signal. In the mode, ultralow detection voltage, ultralow power consumption, temperature stability, high process angle robustness and small chip area are realized, and the detection voltage is programmable.

The invention belongs to the technical field of wind speed transmitters, and particularly relates to a differential pressure type wind speed transmitter which comprises a transmitter main body, two pressure measuring pipes are symmetrically arranged at the lower end of the transmitter main body, air guide pipes are arranged outside the pressure measuring pipes in a sealing and sleeving mode, temperature measuring valves are arranged outside the air guide pipes, and the temperature measuring valves are communicated with the pressure measuring pipes. The pipe wall of the pressure measuring pipe is fixedly sleeved with a plurality of sealing rubber rings, each sealing rubber ring is of a hollow structure, a compensation gas film is arranged in the middle of each sealing rubber ring, and the pressure measuring device further comprises a compensation gas filling mechanism, a maintenance prompting mechanism and a synchronous gas supply mechanism. The differential pressure type wind speed transmitter has a temperature compensation function, so that the measurement result of the differential pressure type wind speed transmitter is more accurate, the sealing connection part of the pressure measuring pipe and the wind guide pipe can be automatically adjusted based on the gas temperature, the problem of inaccurate pressure difference measurement caused by gas leakage is avoided, and the pressure difference can be accurately measured when sealing compensation is performed between the pressure measuring pipe and the wind guide pipe. And redundant air is used for cooling the wind speed transmitter, so that the wind speed transmitter is assisted to work better.

The invention discloses a new energy plug-in hybrid power die-casting aluminum alloy shell double-spindle machining method which comprises the following steps: firstly, roughly and finely milling process surfaces and process holes, pre-milling two junction surfaces, removing feed ports and cinder ladles on the junction surfaces, avoiding vibration generated by large-allowance cutting and applying stress to a product, and avoiding the influence of deformation on the planeness of a large surface; and the machining process sequence selects the same sequence for rotary machining, so that the error between rotary tables can be better reduced. A high-power double-main-shaft horizontal machining center is used, equipment is provided with grating ruler compensation functions of all shafts, a machine body temperature detection compensation function and high-torque double main shafts, a guide bar boring cutter is selected for machining, the cylindricity and high-precision aperture of a bearing hole are better guaranteed, the positive and negative coaxiality of a shell is optimized, the Renishaw online detection compensation function is used, and the machining precision is improved. And the coaxiality precision is ensured. The double spindles are adopted for simultaneous machining, the machining efficiency is improved, two products can be produced at a time, the double spindles can be used for split-shaft machining, the machining efficiency is improved, and the product quality is improved.

The invention relates to the technical field of integrated circuits, and discloses a power-on reset detection circuit, comprising: a bias generation circuit comprising a bias resistor and a second MOS tube which are connected in series, the bias resistor being connected with a power supply voltage to generate a bias voltage; wherein the second MOS tube works in a sub-threshold region; the detection circuit comprises a first resistor, a first MOS tube and a second resistor which are sequentially connected in series; the grid electrode of the first MOS tube is connected with the bias voltage generated by the bias generation circuit, and the drain electrode voltage of the first MOS tube is used as the detection point voltage of the power supply voltage; and the comparison circuit is respectively connected with the bias voltage of the bias generation circuit and the detection point voltage of the detection circuit, and is used for comparing the bias voltage and the detection point voltage. The detection circuit is helpful for reducing the discrete range of power supply voltage detection by the power-on reset detection module, so that the reset voltage of the chip does not change along with the temperature. The invention also discloses a chip.