94results about How to "Reduce reading errors" patented technology

A vertical calibrating method of CCD imaging optical axis to light grading screen based on symmetric measurement include setting formed circular target plane to be under midperpendicular of screen in parallel mode, arranging CCD video camera in front of circular target center by equal height way for carrying out imaging on light form on grading screen and for carrying out measurement on illumination of light form, coinciding stripe center line with midperpendicular of grading screen and further regulating CCD video camera to be on certain position.

The invention discloses a fixed-length cutting device for a stainless steel tube. The fixed-length cutting device for a stainless steel tube comprises a cutting platform and a cutting head group, andfurther comprises a length determining assembly and a clamping assembly; the left side end of the cutting platform is provided with an opening groove, a cutting panel is arranged in the opening groove, and a material collecting box is arranged under the cutting panel; and the length determining assembly comprises a fixed side plate, positioning screws and a positioning pressing plate, the fixed side plate is located over the left end of the opening groove and fixedly connected with the top face of the cutting platform, the positioning screws are symmetrically arranged on the front side and theback side of the fixed side plate, and the two ends of the positioning pressing plates are arranged on the two positioning screws in a sleeving mode separately. According to the fixed-length cuttingdevice for the stainless steel tube, the structure is simple, the practicability is high, operation is easy, use is convenient, not only can the cutting rate and the cutting precision of the stainlesssteel tube be improved, but also the cutting length standard can be guaranteed every time only through one time of cutting length measurement, the manual labor intensity is effectively reduced, the error rate brought by each time of manual measurement is decreased, and resources and the cost are saved.

The invention discloses a multi-position base plate delaminating monitor and a using method thereof. A plurality of extending pipes in the horizontal direction are mainly connected to the top of a base body sleeve of the traditional monitor; each extending pipe is provided with an upward observing seam; a measuring ruler is installed in each extending pipe, and the indication of the measuring rulers can be viewed from the observing seams; each measuring ruler is connected with respective anchor head by a pull rope; and each pull rope is movably connected to each measuring ruler by a screw, and the pull ropes respectively have different lengths in a drilling hole. When the multi-position base plate delaminating monitor is used, the delaminating condition of a base plate stratum is judged according to the displacement change of two upper and lower adjacent measuring points. The invention provides base plate delaminating data for the safety production of a coal mine, is convenient for a staff to adopt a safety measure in time, and prevents accident generation.

The invention discloses a manual spring tension and compression testing machine which aims to solve the problems that spring elasticity coefficients are detected by special equipment mostly made of electronic components currently and the special equipment is not applicable to field operation and the like. The manual spring tension and compression testing machine comprises a frame, a measuring mechanism, a transmission mechanism and a tension and compression clamp mechanism. The measuring mechanism comprises a wide-range vernier caliper (12), a small-range vernier caliper (16) and a spring (5). The spring (5) is sleeved on an upper pressing plate guide rod (3), the upper end of the spring (5) is fixed with a middle crossbeam (6), the lower end of the spring (5) is fixed with an upper spring pressing plate (15) of the tension and compression clamp mechanism, an upper measuring jaw of the small-range vernier caliper (16) is fixed with the middle crossbeam (6), a lower measuring jaw of the small-range vernier caliper (16) is fixed with the lower surface of the upper spring pressing plate (15), an upper measuring jaw of the wide-range vernier caliper (12) is fixed with the upper surface of an upper crossbeam (10), and a lower measuring jaw of the wide-range vernier caliper (12) is fixed with the lower surface of the upper spring pressing plate (15).

The invention provides a nuclear power station check valve testing device which is used for a safety injection line check valve seal test, and the device comprises an upstream line, a downstream line, a high pressure introduction component and a pressure detecting piece. The invention also comprises a nuclear power station check valve test method, the pressure of a circuit residual heat removal system is introduced to a check valve line through the high pressure introduction component, the purpose of realizing check valve line pressure introduction without turning on a low pressure safety injection pump is achieved, and the test risk is greatly reduced; the pressure detecting piece is utilized to replace the instrument in the prior art, a high pressure instrument hose is adopted to connect with a pressure meter, the mounting position of the pressure meter is more flexible, so that the readability of the instrument is improved, and the reading error is reduced.

The invention discloses a device coupling photocatalytic oxidation and inorganic ceramic membrane separation. The device is characterized by comprising a suspended photo-catalytic reaction device (1) and an inorganic ceramic membrane separation device (2), wherein upper ends of the suspended photo-catalytic reaction device (1) and the inorganic ceramic membrane separation device (2) are connected with each other by using a pipe (4); and a high pressure diaphragm pump (3) is connected between lower ends of the suspended photo-catalytic reaction device (1) and the inorganic ceramic membrane separation device (2); integrated operation of the photocatalytic oxidation and the inorganic ceramic membrane separation can be realized so as to overcome the defect that photocatalyst is hard to be separated and recycled in a suspended photo-catalytic reactor.

The invention discloses a magnetic analyte collecting and transferring system, which comprises a collecting part and an elution, wherein the collecting part comprises a magnetic bar and a container suitable for placing the magnetic bar in size; the magnetic bar comprises a magnetic core and a magnetic sleeve; the magnetic sleeve is suitable for detachably sleeving the outside of the magnetic core in size; and the elution part is provided with a magnet for attracting magnetic analyte to fall off from the magnetic sleeve. The invention relates to the field of full-automatic detection equipment of the analyte or an extract. The magnetic bar in the system has a magnetic sleeve structure and can be matched with the magnet of the elution part, so that the problem that a common electromagnet or permanent magnet is difficult to separate after adsorption is completed is solved; a reading error generated in the CTC tumor cell metastasis process is reduced; and meanwhile, the pollution of a buffer solution and an antibody magnetic bead on the magnetic core is avoided.

The invention discloses an oil volatility measurement device. The device comprises an air supply mechanism, an air speed monitoring mechanism, a constant temperature mechanism, a temperature monitoring mechanism, a controller, a sheet-shaped carrier coated with oil to be measured and a force sensor which are all arranged in a closed box body, wherein the air speed monitoring mechanism is used for obtaining an air speed signal above the sheet-shaped carrier in the closed box body and sending to the controller; the constant temperature mechanism is used for changing the temperature magnitude near to the sheet-shaped carrier in the closed box body; the temperature monitoring mechanism is used for detecting a temperature signal near to the sheet-shaped carrier in the closed box body; the controller is used for sending an air speed control instruction to the air supply mechanism and sending a temperature control instruction to the constant temperature mechanism; after receiving the temperature control instruction, the constant temperature mechanism controls the temperature near to the sheet-shaped carrier in the closed box body at a predetermined temperature value; and after receiving the air speed control instruction, the air supply mechanism controls air speed above the sheet-shaped carrier in the closed box body at a predetermined air speed value. The device is easy to operate and has low error.

The invention relates to a gauge pointer and digital combined type LED (light emitting diode) display device special for an electric exerciser, belonging to the field of accessories for the electric exerciser. The gauge pointer and digital combined type LED display device special for the electric exerciser comprises a plastic bracket (1), a PVC (polyvinyl chloride) adhesive film (2) and an LED display array circuit assembly (3), wherein the PVC adhesive film (2) is adhered on the surface of the plastic bracket (1) and is provided with a transparent window with exercise amount scale display and pointer graphics display and printed with exercise amount digital display; the LED display array circuit assembly (3) is provided with conductive pins; and the plastic bracket (1) is provided with a display window through hole and a through groove. The invention can simultaneously realize the exercise amount scale display, the gauge pointer graphics display and LED digital display on a same panel by designing an LED light-emitting simulation gauge pointer and an LED digital tube on the same panel and has the advantages of rich color, uniform luminance, strong shake and pressure resistance, reasonable volume, low voltage and power, no mechanical transmission part, high reliability, long service life, and the like.

The invention discloses a potential energy change based method for quantitatively characterizing the packing segregation state of particles after falling. The method comprises the following steps: (1), establishing a batching model with SolidWorks; (2), introducing the batching model into LIGGGHTS; (3), establishing particle models with two particle diameters in the LIGGGHTS; (4), performing an analog experiment; (5), substituting recorded data into a segregation index calculation model after the analog experiment is finished to obtain a segregation index. The method can be used for quantitatively characterizing the mixing uniformity degree of particles with different particle diameters and the segregation degree of the particles after falling, thereby reducing the energy consumption effectively and prompting energy conservation and emission reduction.

The invention discloses a capacitive temperature sensor and a using method thereof. The capacitive temperature sensor is composed of a temperature sensing bag, a capillary tube, a bellows, a base, a temperature sensing working medium, a capacitor left electrode plate and a capacitor right electrode plate; the base is an L-shaped plate structure; a semi-circular groove is opened on a vertical plate; one end of the bellows is fixedly connected in the semi-circular groove, and the capillary tube and the temperature sensing bag are fixedly connected in order outwardly; the other end of the bellowsis overhanging on a horizontal plate of the base, and the end surface of the bellows is fixedly connected to the capacitor left electrode plate; the capacitor right electrode plate is vertically andfixedly connected to the base with a gap from the capacitor left electrode plate; and the communicating bellows, capillary tube and temperature sensing bag are filled with the same temperature sensingworking medium. The capacitive temperature sensor has the advantages of a simple structure, convenient operation during a using process, a small system error, a low economic cost, and double improvement of energy saving and safety.

The invention provides a method and device for measuring the glass transition temperature of a resin casting body. The device comprises an oil bath pan, a dilatometer, a thermometer and a recording device. The oil bath pan comprises a heater and a pan body; oil is arranged in the pan body, and the heater is used for heating the pan body to keep the oil at the preset constant temperature. The dilatometer comprises a capillary tube and a sample pool, a ground opening is formed in the upper end of the sample pool, and the capillary tube is inserted into the sample pool in a sealed mode through the ground opening; the sample pool is used for containing sample grains and liquid media; the sample pool of the dilatometer and the lower end of the thermometer are both immersed into the oil of the oil bath pan. The recording device is arranged on one side of the oil bath pan and used for automatically recording and outputting the height of the liquid level in the capillary tube of the dilatometer and the temperature of the oil in the oil bath pan according to preset triggering conditions. By means of the method and device, the glass transition temperature of the resin casting body can be accurately measured, operation is easy, and device cost is extremely low.

The invention discloses a full-automatic chemiluminescent immunoassay instrument, which relates to the technical field of medical apparatus. The immunoassay instrument comprises a base, wherein a cleaning and mixing device and an optical inspection device are arranged on the base, the cleaning and mixing device comprises a cleaning disk, a first driving device for driving the cleaning disk to rotate, and a liquid extraction device, a liquid injection device and a mixing device located above the cleaning disk. The base is also provided with a lifting device for driving the liquid injection device, the liquid extraction device and the mixing device to move up and down in a vertical direction; the mixing device comprises a gripper for grasping reagent tubes and a second driving device for driving the gripper to rotate; the upper end surface of the cleaning disk is provided with pipe holes uniformly distributed; the outer edge of the cleaning disk is provided with optical inspection holescommunicating with the pipe holes; and the optical inspection device comprises a photon counter arranged on the base and close to the outer edge of the cleaning disk. The cleaning effect and the cleaning efficiency can be improved, and the inspection efficiency and the inspection accuracy are improved.

The invention discloses a mobile tag detection method based on a radio frequency identification system, which belongs to the technical field of mobile tag detection methods and overcomes the defects in the prior art. The technical problem to be solved is to provide the mobile tag detection method based on the radio frequency identification system. The technical scheme adopted by the invention is that the method comprises the following steps that a machine learning algorithm is designed to predict a mobile tag detection model, the model establishment process mainly comprises three parts, the first part is to extract three input characteristics, namely tag distribution, mobile tag speed and tag distance reader antenna distance, and the second part is to train a proposed SVM model; and the third part is used for testing the SVM model prediction mobile RFID tag. The method is suitable for the field of mobile tag detection.

The invention discloses a centrifugal micro-droplet particle chip. The chip comprises an upper piece and a lower piece bonded with the upper piece, a sample storage ring arranged in the middle of theouter surface of the upper piece or in the middle of the outer surface of the lower piece, M closed sample flow channels which are formed in a position between the upper piece and the lower piece andare outward distributed in a radial manner from the middle of the chip, and closed arc micro-droplet particle storage slot groups (5) which are arranged between the upper piece and the lower piece onthe left sides of the flow channels, wherein M is greater than 2; the closed arc micro-droplet particle storage slot groups comprise a plurality of arc micro-droplet particle storage slots which sharethe same center of a circle; M oil discharge flow channels which are outward distributed in a radial manner from the middle of the chip are formed in a position between the lower surface of the upperpiece and the upper surface of the lower piece; each oil discharge flow channel extends to the edge of the chip and is communicated with an oil discharge outlet at the edge of the chip. The chip hasthe characteristics of high sensitivity and high accuracy.

The invention discloses a cylindrical part inner wall defect size three-dimensional measurement system. A multi-degree-of-freedom displacement mechanism, a part fixing table and an observation structure supporting frame are arranged on a stable measurement platform; an observation mechanism is arranged on the observation structure supporting frame, and an observation module and a measurement sensor are arranged on the observation mechanism; and the cylindrical part is fixed on the part fixing table. The invention further discloses a measuring method of the three-dimensional measuring system. According to the technical scheme, non-contact measurement is adopted, and manufacturing errors of a traditional contact type measuring instrument and reading errors caused by human factors are reduced; model fitting is carried out based on the RANSAC algorithm, the robustness is high, and the efficiency is higher; high-precision multi-angle displacement driving is adopted, vertical lifting and 360-degree all-dimensional inductive triggering are achieved, integrated automatic execution is achieved, and the working efficiency is improved.

The invention discloses a displacement regulating and amplifying device and a base station antenna with the same. The displacement regulating and amplifying device comprises a first threaded rod, a second threaded rod, a regulating wheel and a base plate, wherein the first threaded rod is in butt connection with the second threaded rod; the thread pitch of the second threaded rod is greater than that of the first threaded rod; the two ends of the second threaded rod are supported on the base plate in an axially limited way; the first threaded rod is in threaded connection with a first sliding block; the second threaded rod is in threaded connection with a second sliding block; the first sliding block is connected with a component of which the displacement is to be regulated; and the regulating wheel is arranged at the free end of the second threaded rod, so that along with the rotation of the regulating wheel, the first threaded rod can drive the first sliding block and the component of which the displacement is to be regulated to move along the axial direction at a low speed, and that the second threaded rod can drive the second sliding block to move along the axial direction at a high speed. The device improves the accuracy of reading and ensures the precision of regulation.

The invention provides an automatic measuring device and system for a diameter of a standing tree at a breast height. The device comprises a ruler body and a measuring claw module that is movably arranged above the ruler body. The ruler body comprises a fixed grid module including a capacitive grid sensor. The measuring claw module comprises a control module and a moving grid module of the capacitive grid sensor. The moving grid module is electrically connected to the fixed grid module. The fixed grid module and the moving grid module are used for measuring the displacement of the measuring claw module relative to the ruler body and converting the displacement into digital pulse. The displacement of the measuring claw module relative to the ruler body is the diameter of the standing tree at the breast height. The control module is used for obtaining the diameter of the standing tree at the breast height according to the digital pulse. The automatic measuring device and system providedby the invention have the advantages of low cost, convenient operation and easy carrying, according to a wireless transmission function, cumbersomeness of the traditional manual recording is eliminated, and the intelligence of the measurement of the diameter of the standing tree at breast height is achieved.

The invention provides a pointer instrument correction identification method and device based on deep learning. The method comprises the following steps: obtaining a dial mask image; performing ellipse fitting on the dial plate mask image and detecting a minimum circumcircle to obtain a perspective transformation matrix, and performing preliminary correction on the instrument image by using the perspective transformation matrix; removing a pointer in the instrument image, and obtaining a character minimum bounding rectangular frame according to the obtained character information; performing rotation correction on the instrument image containing the pointer according to the deflection angle of the minimum bounding rectangular frame of the characters; obtaining a corrected pointer mask image; carrying out refining processing on the pointer mask image, and carrying out straight line detection on the refined pointer skeleton; and calculating an instrument reading result according to the deflection angle of the straight line in the plane coordinate system. According to the invention, comprehensive correction of the tilt distortion problem of the instrument in a three-dimensional space in an actual scene can be realized, and a series of three-dimensional correction problems such as stretching, compression and rotation of the acquired instrument image can be processed.

The invention discloses a double-displacement-measurable corner reflector. The double-displacement-measurable corner reflector is characterized by comprising a triangular pyramidal reflector body, a Y-direction sliding module, a rotating module, an X-direction sliding module, a base module and connection rods, wherein the triangular pyramidal reflector body and the Y-direction sliding module are connected through the rotating module; the X-direction sliding module and the base module are located below the Y-direction sliding module; all the modules are connected through the connection rods. The double-displacement-measurable corner reflector has the advantages that a cardan joint allows the corner reflector to freely rotate in a three-dimensional space, so the repeating utilization rate is high; the corner reflector can move in the X-direction and the Y-direction and simulate radar sight direction displacement at high precision; vernier calipers are installed on the two sides of the X-direction and the Y-direction of the corner reflector, so reading errors caused by movement of the corner reflector can be reduced; the corner reflector is convenient to carry, easy and convenient to install and detach, low in cost, and capable of adjusting directions of the reflector body in the three-dimensional space and enhancing the reflection intensity and the SNR of a radar signal.

The invention provides a testing method of wall-protection slurry pressure during the trough-forming construction of the underground continuous wall and a device thereof, belonging to the technical field of building engineering. The invention is characterized in that a hook of a sleeving ring is tied with a measuring rope having graduations; a pressure sensor is arranged in the sleeving ring; the data transmission lead of the pressure sensor and the measuring rope which is tied on the sleeving ring are led out of the trough hole of the sleeving ring together and connected on a lifting frame; the pressure sensor is slid into the trough section by the lifting frame so as to carry out the measuring and reading operation of the pressure sensor; the pressure sensor is lifted upwards subsequently and the measuring and reading of the pressure sensor are carried out repeatedly; the slurry pressure results measured in the same depth are averaged; scattered data of the relationship between depth and slurry pressure is drawn; the scatter data is fitted so as to gain the slurry pressure distribution in different depths in the trough section. The testing method and the device of the invention can exactly measure the wall-protection slurry pressure during the trough-forming construction process of the underground continuous wall, with exact and reliable measuring results.

The invention relates to the stamped seal head quality detection technology, and aims to provide a plastic deformation measuring system and method for an austenitic stainless steel stamped seal head. The system comprises a guiding measuring tape and a measuring platform with guiding wheels on the bottom. An L-shaped slot is arranged in the front end of the measuring platform and movably installed in the measuring platform through a warp-wise scribing driving rod and a circumferential scribing driving rod, one end of the warp-wise scribing driving rod and one end of the circumferential scribing driving rod are amplified in a taper shape and are respectively and movably installed in a vertical chute in an adjustable ring. A laser head is sleeved inside the adjustable ring and connected to a laser generator through fiber, and the rear end of the measuring platform is provided with a stay wire displacement sensor, a stay wire guide rod angle adjusting turn button, a stay wire guide rod and a stay wire guide wheel. The precision is high and reading error is reduced. Laser scribing ensures high efficiency, high precision and low cost. Damage on material surface is small, and influence on the surface performance of seal head material is minimal. Mark is permanent, mark traceability is enhanced, and the application scope is expanded.

The invention discloses a device for automatically calibrating parameters of regulators and relates to a device for simultaneously carrying out automatic calibration on a plurality of regulators. The device provided by the invention comprises a calibration operating platform and an assistant operating platform. The device is characterized by also comprising a plurality of calibration modules which are arranged on the calibration operating platform and the assistant operating platform, each calibration module comprises a plurality of electrical devices or instrumentation devices, and the electrical devices or instrumentation devices are mutually connected in a patch-cord mode and a terminal strip connection mode. By using the device disclosed by the invention, the problems that in the prior art, multi-channel stable calibration signals can not be provided and the measurement error are caused by manual operation and numerical reading in the process of carrying out regulator calibration are solved. The calibration device disclosed by the invention integrates all devices on the calibration operating platform, and has no need of moving the instrumentation devices while carrying out different project calibrations; meanwhile, the device is simple in operation, convenient and flexible.

The invention relates to a measurement device for an unmanned aerial vehicle, in particular to a measurement device for a thrust line of a rocket launching unmanned aerial vehicle. The technical problems are solved that for an existing measurement device for a thrust line of a rocket launching unmanned aerial vehicle, measurement is inconveniently conducted, and the measurement efficiency and precision are low. According to the technical scheme, the measurement device for the thrust line of the rocket launching unmanned aerial vehicle comprises an upper steel wire rope, a thrust bearing connection rod fixedly and axially connected with the upper steel wire rope, a thrust bearing connection sleeve sleeving the exterior of the thrust bearing connection rod, a thrust bearing arranged betweenthe thrust bearing connection rod and the thrust bearing connection sleeve, a lower steel wire rope, a rectangular measurement cylinder sleeving the exterior of the lower steel wire rope, and a measurement ruler for measuring the distance between the lower steel wire rope and the rectangular measurement cylinder. One end of the lower steel wire rope is connected with the thrust bearing sleeve, theother end of the lower steel wire rope is used for being connected with an unmanned aerial vehicle rocket adapter, and one end of the rectangular measurement cylinder is used for being connected withthe unmanned aerial vehicle rocket adapter.

The invention relates to the technical field of engineering measurement, particularly, relates to a measuring scale. The measuring scale includes a first ruler, a second ruler, a hinge, an inclination angle sensor, a display device, and a processor. the first ruler and the second ruler are hinged by a hinge to achieve folding or unfolding, the inclination angle sensor, the display device and the processor are disposed on the first ruler, the display surface of the display device is far away from the first ruler, the inclination angle sensor and the display device are electrically connected with the processor, the inclination angle sensor is used to measure the included angle between the building surface and the reference surface when the first ruler and the second ruler are attached to the building surface, the processor is used to calculate an error value between the building surface and the building reference surface according to the included angle value, the length of the first ruler, and / or the length of the second ruler, and display the error value via the display device. The measuring scale is high in measurement accuracy.

The invention relates to a floor thickness measuring device, and relates to the floor detection device technical field. The floor thickness measuring device comprises an outer cylinder rod, a plurality of limiting clamps and a driving mechanism, wherein scale marks are arranged on the outer wall of the outer cylinder rod, the limiting clamps are arranged at one end of the outer cylinder rod and are used for limiting the insertion depth of the outer cylinder rod, and the driving mechanism is inserted into the outer cylinder rod, is linked with the limiting clamps and is used for driving the limiting clamps to be folded or unfolded; scale marks are arranged on the outer wall of the outer cylinder rod, and the outer wall of the outer cylinder rod is further in threaded connection with a positioning nut used for identifying the position. The floor thickness measuring device has the effect of being convenient to use.

The invention relates to a liquidometer on-site detecting system and method for a high-voltage direct-current converter valve cooling system. The liquidometer on-site detecting system comprises a platform support, a transmitter base, a floating ball base, a stepping motor, a linear displacement mechanism, a control module, a computer module, a straight steel ruler and a laser range finder; the control module is used for controlling the stepping motor and receiving electric signals of the transmitter on the transmitter base and the laser range finder; the computer module is used for processingoutput signals of the control module; the transmitter base, the floating base, the stepping motor and the linear displacement mechanism are arranged on the platform support. The liquidometer on-site detecting system has the advantages that the control module is used for controlling the stepping motor and receiving electric signals of the transmitter on the transmitter base and the laser range finder, the computer module is used for processing output signals of the control module, and the transmitter base, the floating base, the stepping motor and the linear displacement mechanism are arrangedon the platform support.

The invention discloses a four-reading-head digital signal decoder for a steel ring encoder, relates to the field of signal processing of high-accuracy encoders, and aims to solve the problems of poor structural flexibility, poor program transportability, incapability of being compatible with a plurality of protocols and incapability of eliminating angle measurement errors in an existing decoder. In the four-reading-head digital signal decoder, a microprocessor unit reads an encoder protocol parameter from an electrically erasable programmable read-only memory (EEPROM) and writes the encoder protocol parameter into a logical processor unit; the logical processor unit selects an encoder reading head interface and a decoding way according to the encoder protocol parameter, and acquires encoder data of a corresponding encoder reading head and decodes the encoder data at the same time; the microprocessor unit reads decoded encoder data and performs mean processing on the decoded encoder data to obtain synthesized encoder data; and the microprocessor unit transmits the synthesized encoder data to a servo controller, and transmits the encoder data and the synthesized encoder data to a liquid crystal display screen for real-time displaying. The four-reading-head digital signal decoder has the advantages of flexible protocol, high program transportability, high angle measurement accuracy and high universality.

A control unit for a vehicle automatic transmission is small sized and can be produced at low cost. The control unit has an actuator (20) for switching between drive ranges of the transmission (6), ashift-by-wire control circuit (53) for controlling the actuator (20) based on a range selected by a driver, and an automatic transmission control circuit (56) for controlling various kinds of valves of a hydraulic control device of the automatic transmission (6). The elements described above are received in one case (10, 11, 12) and mounted on the automatic transmission (6).