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Temperature deviation function generators, zero and multiplying factor temperature deviation adjusters and universal temperature compensator

A function generator and generator technology, applied in the direction of pulse generation, electric pulse generation, electrical components, etc., can solve problems such as difficulty in parameter adjustment

Inactive Publication Date: 2010-10-13
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a temperature deviation function generator realized by an analog circuit, a zero position and magnification temperature deviation adjuster with an adjustment function, and a general temperature compensator for separately compensating and adjusting the zero position temperature deviation and the magnification temperature deviation, so as to solve the problem caused by zero The problem of difficult parameter adjustment due to mutual coupling of bit temperature deviation and magnification temperature deviation compensation

Method used

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  • Temperature deviation function generators, zero and multiplying factor temperature deviation adjusters and universal temperature compensator
  • Temperature deviation function generators, zero and multiplying factor temperature deviation adjusters and universal temperature compensator
  • Temperature deviation function generators, zero and multiplying factor temperature deviation adjusters and universal temperature compensator

Examples

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Effect test

Embodiment 1

[0078] Three types of proportional temperature deviation function generators (such as direct feed type, feedback type and comprehensive type) (such as Figure 2a , Figure 2b , Figure 2c As shown), there is an input terminal ut and an output terminal vt; the temperature bias function generator is composed of operational amplifier A1, potentiometer Rp1, and resistors R10~R13. The non-inverting input terminal of operational amplifier A1 is connected to the sliding terminal of potentiometer Rp1. One end of the two fixed terminals of the potentiometer Rp1 is connected to the input terminal ut of the temperature deviation function generator through the resistance R13, and the other end is grounded through the resistance R10, and the inverting input terminal of the operational amplifier A1 is connected to the input terminal of the temperature deviation function generator through the resistance R12 ut, connected to the output terminal of the operational amplifier A1 through the res...

Embodiment 2

[0083] There are three types of voltage-type temperature-bias function generators (such as direct-feeding, feedback, and comprehensive) (such as Figure 4a , Figure 4b , Figure 4c As shown), there is an input terminal ut and an output terminal vt, which adopts the same structure as the proportional temperature deviation function generator, and replaces the corresponding thermistor with a Zener diode, that is: direct-feed voltage temperature The partial function generator is to replace the thermistor R12 of the direct-feeding proportional temperature deviation function generator with the voltage regulator tube D12, and the feedback voltage type temperature deviation function generator is to replace the thermal resistance of the feedback proportional temperature deviation function generator The sensitive resistor R11 is replaced with a voltage regulator tube D11, and the comprehensive voltage type temperature deviation function generator is to replace the thermistors R11 and ...

Embodiment 3

[0088] Adjustable rate temperature bias generator (such as Image 6 As shown), there is an input terminal ud and an output terminal vd, which is composed of a temperature bias function generator and a gain-adjustable amplifier. The gain-adjustable amplifier has an input terminal ua and an output terminal va, and its voltage amplification factor can be Adjust according to needs; the input terminal ut of the temperature deviation function generator is connected to the input terminal ud of the temperature deviation generator with adjustable magnification, the output terminal vt of the temperature deviation function generator is connected to the input terminal ua of the gain-adjustable amplifier, and the gain-adjustable amplifier The output port va of the output port is connected as the output port vd of the temperature bias generator with adjustable magnification.

[0089] The gain-adjustable amplifier is usually obtained by replacing the feedback resistance or input resistance o...

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Abstract

The invention relates to temperature deviation function generators, zero and multiplying factor temperature deviation adjusters and a universal temperature compensator, and belongs to the technical fields of signal conversion, automatic control and measurement. The temperature deviation function generator is composed of an operational amplifier, a thermal element, resistors, a potentiometer and the like. The adjustable multiplying factor temperature deviation generator is composed of a temperature deviation function generator and a gain adjustable amplifier. The adjustable zero temperature deviation generator is composed of a temperature deviation function generator or an adjustable amplification factor temperature deviation generator. The zero temperature deviation adjuster is composed of a zero conditioning circuit and an adjustable zero temperature deviation generator. The multiplying factor temperature deviation generator is composed of an multiplying factor conditioning circuit and an adjustable multiplying factor temperature deviation generator. The universal temperature compensator is composed of a zero temperature deviation adjuster and a multiplying factor temperature deviation generator. The temperature deviation function generator and the temperature compensator are matched with different processing circuits through the devices with different thermosensitive characteristics so as to realize multiple temperature compensation characteristics, thereby meeting the requirements for multiple measurement and control circuits or devices.

Description

technical field [0001] The invention relates to a temperature deviation function generator, a zero position and magnification temperature deviation adjuster and a general temperature compensator, especially a temperature deviation function generator and a general temperature compensator realized by an analog circuit, belonging to signal transformation, automatic control and measurement technology field. Background technique [0002] Sensors, measurement circuits, signal processing and other links often use semiconductor devices, which are more sensitive to temperature changes, resulting in errors in measurement or calculation at different temperatures, and errors caused by temperature changes in measuring instruments or equipment need to be avoided or reduced as much as possible . [0003] The error caused by temperature changes, that is, the output signal deviates from the original value due to temperature changes, usually a function of temperature, and the deviation is us...

Claims

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Application Information

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IPC IPC(8): H03K3/011
Inventor 朱明于燕萍张金龙夏根明司霞
Owner SHANGHAI UNIV
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